LXNAV LX Zeus 2.8 Retrofit, LX Zeus 4.3, LX Zeus 8.0, LX Zeus Mobile, LX Zeus 5.5 User Manual

LX Zeus

LX Zeus Mobile, 2.8, 4.3, 5.5, 7.0 and 8.0

User’s manual

( Version 3.4.3)

Tkalska 10

SI 3000 Celje

Tel: [phone]

Fax: [phone]

www.lxnavigation.si

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1 SYSTEM DESCRIPTION ................................................................................................................. - 7 -

1.1 Screen size options .................................................................................................................... - 7 -

1.1.1 LX Zeus 2.8 .............................................................................................................................. - 7 -

1.1.2 LX Zeus 2.8 Retrofit ................................................................................................................. - 7 -

1.1.3 LX Zeus 4.3 .............................................................................................................................. - 7 -

1.1.4 LX Zeus 5.5 .............................................................................................................................. - 8 -

1.1.5 LX Zeus 7.0 .............................................................................................................................. - 8 -

1.1.6 LX Zeus 8.0 .............................................................................................................................. - 8 -

1.1.7 LX Zeus Mobile ........................................................................................................................ - 8 -

1.1.8 LX Zeus CAI 302 ...................................................................................................................... - 8 -

1.2 Hardware concept ...................................................................................................................... - 8 -

1.2.1 USB and SD port ...................................................................................................................... - 9 -

1.2.2 Connections ............................................................................................................................. - 9 -

1.3 Software ....................................................................................................................................- 10 -

1.4 Technical data ...........................................................................................................................- 10 -

1.5 Operation and controls ............................................................................................................- 11 -

1.5.1 System push buttons (5) ........................................................................................................- 11 -

1.5.1.1 VARIO / FLARM button .................................................................................................- 11 -

1.5.1.2 TSK / MOVE button .......................................................................................................- 12 -

1.5.1.3 STAT / EVENT button ...................................................................................................- 12 -

1.5.1.4 SELECT / NEAR button ................................................................................................- 12 -

1.5.1.5 SETUP / INFO button ....................................................................................................- 13 -

1.5.2 Navigation push buttons (3) ...................................................................................................- 13 -

1.5.2.1 APT button (Airport, Turn point, Task) ..........................................................................- 13 -

1.5.2.2 SUBP button (Subpage) ................................................................................................- 13 -

1.5.2.3 1-4 button ......................................................................................................................- 15 -

1.6 Rotary Switches ........................................................................................................................- 16 -

1.6.1 Zoom Rotary switch ...............................................................................................................- 16 -

1.6.1.1 Additional functions of Zoom .........................................................................................- 16 -

1.6.2 Audio volume rotary switch ....................................................................................................- 16 -

1.6.2.1 Additional functions .......................................................................................................- 17 -

1.7 Automatic jump out of edit ......................................................................................................- 17 -

1.8 Display organisation and management .................................................................................- 17 -

1.8.1 Display organization ...............................................................................................................- 17 -

1.8.1.1 Indicators .......................................................................................................................- 17 -

1.8.1.2 Bottom row customization .............................................................................................- 18 -

1.8.1.3 Header customization ....................................................................................................- 19 -

2 SETUP ............................................................................................................................................- 20 -

2.1 Pilot specific settings...............................................................................................................- 20 -

2.1.1 Pilot ........................................................................................................................................- 20 -

2.1.1.1 TDT calculation (task delta time) ...................................................................................- 20 -

2.1.1.2 AAT calculation ..............................................................................................................- 20 -

2.1.2 Audio settings .........................................................................................................................- 21 -

2.1.3 Voice ......................................................................................................................................- 22 -

2.1.4 Vario settings .........................................................................................................................- 22 -

2.1.5 Indicators ................................................................................................................................- 23 -

2.1.5.1 Secondary indicators .....................................................................................................- 24 -

2.1.6 Flarm ......................................................................................................................................- 24 -

2.1.7 Logger - Flight recorder settings ............................................................................................- 25 -

2.1.8 Airspace management ...........................................................................................................- 25 -

2.1.9 Wind .......................................................................................................................................- 26 -

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2.1.9.1 Circling method ..............................................................................................................- 26 -

2.1.9.2 Straight model ...............................................................................................................- 26 -

2.1.9.3 Manual wind settings .....................................................................................................- 27 -

2.1.9.4 Influence of wind in final glide .......................................................................................- 27 -

2.1.10 Graphics (User Interface) ..................................................................................................- 27 -

2.1.10.1 Map settings ..................................................................................................................- 27 -

2.1.10.2 Fonts .............................................................................................................................- 29 -

2.1.10.3 TP/APT settings ............................................................................................................- 29 -

2.1.10.4 Task settings ................................................................................................................- 30 -

2.1.10.5 Airspaces ......................................................................................................................- 30 -

2.1.10.6 Tail settings ..................................................................................................................- 30 -

2.1.10.7 Track colour ..................................................................................................................- 31 -

2.1.10.8 Track to destination colour ............................................................................................- 31 -

2.1.10.9 View SUBP 3 .................................................................................................................- 31 -

2.1.10.10 Auto close inactivity time out .....................................................................................- 31 -

2.1.10.11 Statistics colours .......................................................................................................- 31 -

2.1.11 Layout ................................................................................................................................- 32 -

2.1.11.1 Layout edit procedure: ...................................................................................................- 32 -

2.1.11.2 Copy NAVBOXes .........................................................................................................- 36 -

2.1.11.3 Copy layout ....................................................................................................................- 37 -

2.1.11.4 NAVBOX as an indicator ...............................................................................................- 37 -

2.1.12 Brightness adjustment .......................................................................................................- 37 -

2.2 System Setup ............................................................................................................................- 38 -

2.2.1 Units .......................................................................................................................................- 38 -

2.2.2 Glider (glider polar selection) .................................................................................................- 38 -

2.2.2.1 Speed indicator settings ................................................................................................- 38 -

2.2.2.2 Flaps position settings ...................................................................................................- 38 -

2.2.2.3 TE level and TE filter .....................................................................................................- 39 -

2.2.3 Checklist .................................................................................................................................- 40 -

2.2.4 Notepad ..................................................................................................................................- 41 -

2.2.5 Transfer .................................................................................................................................- 41 -

2.2.5.1 Transfer of Airport data .................................................................................................- 42 -

2.2.5.2 Transfer of Turn Point data ...........................................................................................- 42 -

2.2.5.3 Transfer of Airspace files ...............................................................................................- 43 -

2.2.5.4 Transfer of Flarm net files .............................................................................................- 43 -

2.2.5.5 Transfer Charts ..............................................................................................................- 43 -

2.2.5.6 Transfer Checklist..........................................................................................................- 43 -

2.2.5.7 Logbook transfer ............................................................................................................- 43 -

2.2.5.8 Translation files transfer ................................................................................................- 43 -

2.2.6 Service ...................................................................................................................................- 44 -

2.2.6.1 Screen rotation ..............................................................................................................- 44 -

2.2.6.2 Compass calibration ......................................................................................................- 44 -

2.2.6.3 AHRS Level adjust (Pitch and Roll)..............................................................................- 45 -

2.2.6.4 Disable AHRS ...............................................................................................................- 46 -

2.2.6.5 Detected hardware ........................................................................................................- 46 -

2.2.7 Locale .....................................................................................................................................- 46 -

3 UPDATE PROCEDURE .................................................................................................................- 46 -

4 NAVIGATION MODES ...................................................................................................................- 47 -

4.1 APT mode (navigation to airports) .........................................................................................- 47 -

4.2 How to select an airport? ........................................................................................................- 47 -

4.2.1 APT selection from NEAR function ........................................................................................- 48 -

4.3 Navigation in APT / TP or TSK mode ......................................................................................- 48 -

4.3.1 Sort by filter ............................................................................................................................- 48 -

4.3.2 Main graphic navigation page ................................................................................................- 48 -

4.3.3 Second navigation page (subpage) .......................................................................................- 49 -

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4.3.4 Third navigation page (2nd subpage) ......................................................................................- 49 -

4.3.5 Use of Remote Stick in APT...................................................................................................- 50 -

4.4 Turn point mode .......................................................................................................................- 50 -

4.4.1.1 Edit TP ...........................................................................................................................- 51 -

4.4.1.2 Creation of User Turn points .........................................................................................- 51 -

4.4.1.3 Add Marker ....................................................................................................................- 52 -

4.4.1.4 Delete TP .......................................................................................................................- 52 -

4.4.1.5 Send TP .........................................................................................................................- 52 -

4.4.2 Selection of a Turn Point ........................................................................................................- 52 -

4.4.2.1 Selection from Near .......................................................................................................- 53 -

4.4.3 Navigation to a Turn Point......................................................................................................- 53 -

4.4.3.1 Use of Remote stick ......................................................................................................- 53 -

4.5 Task Mode .................................................................................................................................- 53 -

4.5.1 Task organization ...................................................................................................................- 53 -

4.5.1.1 Task declaration ............................................................................................................- 53 -

4.5.2 Task selection ........................................................................................................................- 53 -

4.5.3 Task creation by “hand” .........................................................................................................- 54 -

4.5.3.1 Create and Edit Zones .................................................................................................- 55 -

4.5.4 Task Start (ARM), Restart, Next TP, Clear, Save, Team Code, Limitations .........................- 56 -

4.5.4.1 Task Start ......................................................................................................................- 56 -

4.5.4.2 Task Restart function.....................................................................................................- 56 -

4.5.4.3 Over Turn point ..............................................................................................................- 57 -

4.5.4.4 Saving TSK to USB ......................................................................................................- 57 -

4.5.4.5 Clear TSK .....................................................................................................................- 57 -

4.5.4.6 Team Code ...................................................................................................................- 58 -

4.5.4.7 Limitations .....................................................................................................................- 58 -

4.5.5 MOVE Function (during flight) ................................................................................................- 58 -

4.5.6 Task Zoom .............................................................................................................................- 59 -

4.5.7 Use of Remote Stick ..............................................................................................................- 59 -

5 AIRSPACE MANAGEMENT ..........................................................................................................- 60 -

5.1 Basic airspace settings............................................................................................................- 60 -

5.1.1 Hide airspaces above .............................................................................................................- 60 -

5.1.2 Other setups ...........................................................................................................................- 60 -

5.1.3 Define appearance of airspaces regarding zoom ..................................................................- 60 -

5.1.3.1 Warnings .......................................................................................................................- 60 -

5.1.4 Disabling of airspace sections................................................................................................- 61 -

6 GPS SIGNAL MANAGEMENT ......................................................................................................- 62 -

6.1 Colibri II plug .............................................................................................................................- 62 -

6.2 Flarm plug .................................................................................................................................- 62 -

6.3 GPS signal for navigation ........................................................................................................- 63 -

7 LX ZEUS AND COLIBRI II .............................................................................................................- 63 -

7.1 Colibri II power management ..................................................................................................- 63 -

7.2 Colibri II - Zeus interaction ......................................................................................................- 63 -

7.2.1 Commands and declaration transfer to Colibri II....................................................................- 63 -

8 LX ZEUS AND FLARM ..................................................................................................................- 64 -

8.1 Flarm external displays............................................................................................................- 64 -

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8.2 Task declaration into Flarm .....................................................................................................- 65 -

8.3 Transferring files from Flarm ..................................................................................................- 65 -

8.4 Flarm Red Box / Mini Box update ...........................................................................................- 65 -

8.5 Flarm PIN OUT ..........................................................................................................................- 65 -

9 LX ZEUS AND GARRECHT ..........................................................................................................- 66 -

9.1 LX ZEUS and Garrecht TRX-1090 ADSB / TRX-2000 .............................................................- 66 -

9.2 LX ZEUS and Garrrect TRX-1500 ............................................................................................- 66 -

10 REMOTE CONTROL ......................................................................................................................- 67 -

10.1 Use of Remote Stick .................................................................................................................- 67 -

10.2 Remote in second seat ............................................................................................................- 67 -

11 LX JOY ...........................................................................................................................................- 68 -

11.1 General ......................................................................................................................................- 68 -

11.2 Button description ....................................................................................................................- 68 -

12 SECOND SEAT UNIT ....................................................................................................................- 71 -

12.1 Connection of Vario and Remote ............................................................................................- 71 -

12.1.1 Secondary Vario setup ......................................................................................................- 71 -

12.2 Interaction LX Zeus – LX Zeus Second seat ..........................................................................- 71 -

12.2.1 TSK / TP / APT exchange ..................................................................................................- 72 -

12.2.2 Downloading flights from Second seat ..............................................................................- 72 -

13 FLYING WITH LX ZEUS ................................................................................................................- 73 -

13.1 Flight preparation on ground ..................................................................................................- 73 -

13.1.1 Before take off....................................................................................................................- 73 -

13.1.1.1 Setting of the take-off elevation .....................................................................................- 73 -

13.1.1.2 QNH setting ...................................................................................................................- 73 -

13.1.1.3 ...........................................................................................................................................- 73 -

13.1.1.4 Task declaration process ..............................................................................................- 74 -

13.2 During flight ..............................................................................................................................- 74 -

13.2.1 Set MacCready, Ballast, Bugs and QNH ...........................................................................- 74 -

13.2.2 Statistics .............................................................................................................................- 75 -

13.2.2.1 Thermal Analysis ...........................................................................................................- 75 -

13.2.2.2 OLC Calculation ...........................................................................................................- 76 -

13.2.2.3 Baro trace graph ............................................................................................................- 76 -

13.2.2.4 Task Statistics ..............................................................................................................- 76 -

13.2.2.5 Route ............................................................................................................................- 77 -

13.2.3 Special functions ................................................................................................................- 77 -

13.2.3.1 Event function ...............................................................................................................- 77 -

13.2.3.2 Marker setting ...............................................................................................................- 77 -

13.2.3.3 Pan mode .....................................................................................................................- 78 -

13.2.4 Task Start ..........................................................................................................................- 78 -

13.2.4.1 Start Conditions / Limitations ........................................................................................- 79 -

13.2.4.2 Task Restart ..................................................................................................................- 79 -

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13.2.4.3 Restart Leg ....................................................................................................................- 79 -

13.2.5 Task Finish ........................................................................................................................- 79 -

13.2.6 Flying AAT (Assigned Area Task)......................................................................................- 80 -

13.2.7 Final glide calculation ........................................................................................................- 81 -

13.2.8 Finish line crossing ............................................................................................................- 81 -

13.2.9 Thermal assistant ..............................................................................................................- 82 -

13.2.10 Flarm management ............................................................................................................- 82 -

13.2.11 Artificial horizon – AHRS ...................................................................................................- 83 -

13.3 After landing .............................................................................................................................- 84 -

13.3.1 Downloading of flights ........................................................................................................- 84 -

13.3.1.1 Downloading Colibri II flights ........................................................................................- 85 -

13.3.1.2 Downloading of flights recorded by Zeus ......................................................................- 85 -

13.3.1.3 Downloading flights stored in Flarm ..............................................................................- 85 -

13.3.1.4 Colibri II – Zeus interaction after landing .......................................................................- 85 -

13.3.2 Recommendations for safe operation ................................................................................- 86 -

13.4 ICAO charts ...............................................................................................................................- 86 -

14 INSTALLATION ..............................................................................................................................- 87 -

14.1 Mechanical installation ............................................................................................................- 87 -

14.1.1 Installation of Vario unit .....................................................................................................- 87 -

14.2 Screen rotation .........................................................................................................................- 87 -

14.3 Electrical installation................................................................................................................- 88 -

14.3.1 Installation of USB D 60 (Vario unit) ..................................................................................- 88 -

14.3.1.1 USB-D 60 wiring ............................................................................................................- 89 -

14.4 Installation of second seat units .............................................................................................- 90 -

14.4.1 Electrical installation ..........................................................................................................- 90 -

15 EXPLANATION OF TERMS ..........................................................................................................- 91 -

16 ZEUS MOBILE ...............................................................................................................................- 92 -

17 FAQ (FREQUENTLY ASKED QUESTIONS) ................................................................................- 93 -

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1 System description

The system consists of a minimum of two units. One of them is a gliding computer the other unit is a 57 mm
vario. The vario unit is also available as an 80 mm option. The gliding computer has a sunshine readable
and anti-reflective 5.5 inch colour display and a high power Linux running computing device. The vario is a
standalone unit and has its electronics based on high precision digital sensors and transducers. The
connection between vario and computer unit is via LX system bus. System extensions (second seat unit,

remote control, compass ....) are also possible after connecting the LX system bus solution. All connections

are plug and play, which means no specialists are required to install the system.

1.1 Screen size options

LX Zeus comes in five different screen size variants, which makes it possible to install the LX Zeus system
into practically any instrument panel. The complete electronics and also all functions are the same for all
variants. The only difference is, that the 2.8 and 4.3 options use the 2x4 push button organization where as

5.5, 7.0 and 8.0 have a 5x3 push button organization. Every unit except the 2.8 option is delivered with a
suitable steel template which makes it possible to prepare a new cut out by hand. There are two orientations
possible*: landscape or portrait orientation. This can be specified during ordering. The user can also
change the orientation in the system settings.
*Zeus 2.8 is only available in landscape orientation.

1.1.1 LX Zeus 2.8

This version of Zeus can be installed into any normal 80 mm panel cut out and therefore does not require
an instrument panel upgrade. Display orientation is only landscape.

1.1.2 LX Zeus 2.8 Retrofit

Zeus 2.8 Retrofit is the same display size as Zeus 2.8 but differs in hardware. Vario (USB-D) module is
inside of the main unit and only a vario indicator is needed. Back plate is equal to LX 5000 (2x 15pin
connectors). If LX 5000 has a 25 pin connector, an adapter for 2x15 to 25 pin is needed, which can be
supplied from the LX Navigation Company. The purpose of Retrofit solution is that all wiring remains as is,
also an old vario indicator can be used!

1.1.3 LX Zeus 4.3

The display diagonal of the system is 4.3-inch and has following outline dimensions:

 83x136x52 mm

Note!

Pictures used in this manual may slightly differ from the LX Zeus original screens.

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1.1.4 LX Zeus 5.5

This is the most common used variant and comes with 5.5-inch display. Layout size is:

 106x146x52 mm

1.1.5 LX Zeus 7.0

This version size can be fitted in the majority of instrument panels used in modern gliders. The display size
is 7-inch and the unit layout is:

 110x190x52 mm

1.1.6 LX Zeus 8.0

This is the biggest LX Zeus model and its display diagonal is 8-inch.

 161x218x52 mm

1.1.7 LX Zeus Mobile

LX Zeus Mobile is a derivate from LX Zeus 4.3. The unit uses a 4.3-inch display, the same as by Zeus 4.3.
The unit is prepared to be installed as an integral part of the panel, but can be also used as a mobile device
installed on panel by using a gooseneck. A vario unit is also a part of delivery and its default configuration
is a black box solution. An upgrade to color display and the needle is possible at any time.

1.1.8 LX Zeus CAI 302

All Zeus units can be connected to Cambridge vario CAI 302 as a plug and play solution. Cambridge vario
must be connected to Zeus Flarm port, so in case of CAI configuration Flarm cannot be connected to LX
Zeus. Zeus is exchanging following data with CAI:

 QNH
 Vario data
 Airspeed
 GPS
 MC
 Volume

CAI 302 vario is powered from LX Zeus device.

1.2 Hardware concept

The system is designed to offer flexible solutions of system configurations, so the pilot is able to provide
some kind of custom design. At the back side of the unit there are plenty of connectors which make it
possible to connect (plug and play) a various palette of GPS signal sources, as the unit does not have
integral an GPS receiver. Units as Colibri, LX 20, VL and any other GPS source which is capable of
delivering NMEA data at nearly any baud rate, are compatible.

A special plug is provided for Colibri II connection and in that case Colibri II is also powered from Zeus.
Using of Colibri II offers some important benefits for the pilot. The benefits are:

 automatic switch on of Colibri II as Zeus is powered on.
 automatic power off after Zeus will be switched off and the system is no longer in flying mode; if

flight status is detected, Colibri II will continue logging its own internal battery.

 downloading of flights via Zeus USB stick

When two GPS sources are connected at the same time, both signals are combined and losing one of the
GPS sources will not degrade system availability. Colibri II is used as an IGC flight recorder in the case of
an IGC approved solution. In that case a high level of communication is established between Colibri II and
Zeus and the pilot is able to operate the system in the same way as by an integral flight recorder. The Colibri
II unit can operate in portrait and in landscape orientation. Changing orientation is very easy and can be
done by pilot. See Colibri II user manual for more information.

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Commercially available versions:

 LX Zeus IGC: package consists of LX Zeus Computer, Colibri II high level approved flight recorder

with ENL, OAT sensor, USB key, main power cable with switch, USB D 60 vario unit and USB D
cables

 LX Zeus Flarm: LX Zeus Computer, Flarm which is not IGC (optionally can be IGC), Flarm dipole

antenna, SD card for Flarm, Flarm cable to Zeus, Flarm SD cable to Zeus, Flarm GPS antenna,
OAT sensor, USB key, main power cable with switch, USB D 60 vario unit and USB D cables

 LX Zeus Flarm IGC: LX Zeus Computer, Flarm which is not IGC (optionally can be IGC), Flarm

dipole antenna, SD card for Flarm, Flarm cable to Zeus, Flarm SD cable to Zeus, Flarm GPS
antenna, Colibri II high level approved flight recorder with ENL, OAT sensor, USB key, main power
cable with switch, USB D 60 vario unit and USB D cables

 LX Zeus: LX Zeus Computer, USB key, main power cable with switch, USB D 60 vario unit and

USB D cables

Rotary switches and push buttons

There are 8 push buttons and two rotary switches on the
front of the unit. Also the rotary switches have a double
push function (short and long press). On one side there
are five push buttons which all have a double push
function (short and long press) and on the other side there
are three push buttons with one push function. Buttons
are labelled and this makes unit manipulation very easy.
(Zeus 2.8 has a 4x4 push button organization.)

Both rotary switches are multifunctional as follows:

Default functions:

 audio volume adjustment function
 zoom selector

In edit:

 zoom: scrolling and press confirmation
 volume: bigger steps of scrolling and escape/cancel by pressing

1.2.1 USB and SD port

An A-size USB port is situated on the front panel. The port is exclusively used for data transfer and firmware
updates. The customer can also easily update the firmware. The SD port is only used when a Flarm is
connected (Flarm Red Box, Swiss Flarm and optionally Flarm Mini Box). The SD port makes direct
communication with Flarm possible, which means downloading of flights stored in Flarm, uploading of
declaration and also Flarm updating.

1.2.2 Connections

On the back side of the unit there are following connectors:

 4x 485 system bus (Zeus 2.8 has 2x 485)*
 2x CAN bus**
 Colibri II port (5V and data)***
 Flarm port (12 V power and data)****
 2x Flarm display outputs
 1x Flarm SD
 1x OAT plug to connect OAT sensor

Zeus 5.5/7.0 with AHRS:

 1x Pst connector
 1x Ptot connector
 1x USB (not in use)

* 485 connects LX Zeus to:

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 USB D 60 Vario unit
 Remote control stick
 Secondary Vario indicators
 Compass module
 Voice module

** CAN bus:

 Connects Second seat unit

*** Colibri II port:

 Makes possible to arrange direct connection of LX Zeus to Colibri II only via cable (special cable

required, is included when purchased together)
**** Flarm port can be also used to connect any other GPS source which has an IGC standard connector.
For instance: Colibri LX 20, VL… If Flarm is connected, two Flarm displays can be connected to the system
by using Display 1 and Display 2 plugs. The SD connector is directly connected to the micro-SD card reader
on the front of the Zeus.

1.3 Software

SW package is completely developed by LX Navigation and is running on Linux operation system. The logic
used kept the well-known LX Navigation philosophy, but some new approaches have been involved. The
SW is continuously developed and upgrades are regularly published. Upgrades of SW can easily be done
by user without requiring any passwords. Contact your dealer to get notified of future updates.

1.4 Technical data

Computer module 4.3, 5.5, 7.0, 8.0:

 4.3, 5.5, 7.0 or 8.0 inch sunshine readable anti-glare display
 Landscape or portrait orientation
 Power requirements: typically 400 mA at 12 V (may vary due to backlight intensity settings)
 8 push buttons
 2 rotary switches with push functions
 USB size A port
 SD card reader (for Flarm only)

Computer module Zeus 2.8:

 2.8 inch sunshine readable antiglare display
 Power requirements: typically 300 mA at 12 V
 Layout: 80 mm size, landscape only orientation
 8 push buttons
 2 rotary switches with push functions
 USB size A port
 SD card reader (for Flarm only)

Vario module (USB D 60):

 57 mm air norm (60x60 mm)
 Optionally 80 mm
 Mechanical needle with colour display
 Power consumption: 120 mA at 12
 485 bus compatible unit

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1.5 Operation and controls

8 push buttons and two rotary switches are used to control the Zeus. LX Navigation Remote Stick or LX joy
can also be used to control the unit.

Push buttons are divided into two groups. Group of 5 buttons situated between the two rotary switches are
meant for system inputs. All five buttons support two functions; long or short press. Short press activates
the top labelled function and long press (approximately 2 seconds) activates secondary function, which is
labelled below the top one. Next three push buttons are used during navigation to switch between navigation
modes. These buttons do not support long press functions.

1.5.1 System push buttons (5)

 Vario / Flarm
 TSK / Move
 Stat / Event
 Select / Near
 Setup / Info

1.5.1.1 VARIO / FLARM button

 VARIO (short press): input of MC, Ballast, Bugs and QNH
 FLARM (long press): activation of Flarm radar screen

1.5.1.1.1 Explanation of VARIO screen

Load Factor

Wing load

Efficiency

Wing load and MAX
Wing load allowed

Polar in use

Theoretic speed at
current MC setting

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1.5.1.2 TSK / MOVE button

 TSK: task management, for next actions use press buttons near to the labels
 MOVE: executing of move function by AAT

1.5.1.3 STAT / EVENT button

 STATISTICS: flight and task statistics
 EVENT: activation of Event function in Colibri II

1.5.1.4 SELECT / NEAR button

 SELECT: selection of APT, TP, TSK, Airspace and activation of Pan mode (see flying)
 NEAR: activation of near function (Landable points / Markers, Turnpoints, Airspaces…)

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1.5.1.5 SETUP / INFO button

 SETUP: direct access to Setup menu

 INFO: information about GPS source, and other data, system configuration (latest software

version), selected pilot with all data, glider configuration and sunrise/sunset time. Here you can find

also a message about disabled AHRS.

1.5.2 Navigation push buttons (3)

Three buttons are used to leaf through the navigation menus of LX Zeus.

 APT
 SUBP
 1-4

1.5.2.1 APT button (Airport, Turn point, Task)

After each press the next mode will be selected. This will
only change the main page.

1.5.2.2 SUBP button (Subpage)

SUBP (subpage): after every push, subpage of APT, TP or TSK screen will open. The procedure is circular.

 1st subpage is divided into two parts. The upper

part consists of vertical terrain profile and lower

part consists of Airport / TP data and TSK

statistics.

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 2

nd

subpage is divided into map and 3D terrain
display or Artificial horizon (AHRS), if it is the part
of the system.

1.5.2.2.1 First navigation subpage

First navigation subpage is available after press on SUBP
button and this is valid for all three navigation modes. The
page is divided into two sections. Upper section is
reserved for vertical terrain profile, the lower part shows

APT and TP data / circling log/ wind at different altitudes.
Subpage at TSK shows task’s statistics by legs / circling
log / wind at different altitudes. Switching between lower
info can be done after press on 1-4 button.

Vertical terrain profile shows glider position regarding to
the terrain and the airspace. Final glide profile for MC 0
and actual MC is also visualized as a cone.

The terrain is shown in all 3 pages (TP, APT, TSK). The
profile of the terrain is chosen according to the terrain from
current position to selected TP, APT and through all TPs
on the TSK. The terrain mode also shows the airspaces in
a vertical profile with different colours. With Zoom knob
you can adjust the scale.

1.5.2.2.2 Second navigation subpage

This page shows 3D terrain data regarding to glider
present position. If the artificial horizon is integrated in the
Zeus, then the second navigation page will be an artificial
horizon (AHRS).

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Note!

To select next bottom row which is still
empty simply press on 1-4 button.

1.5.2.3 1-4 button

LX Zeus uses the bottom row for NAV BOX presentation.
Infinite variants are fully programmable and selectable by
the 1-4 push button.

The colours, transparency and presentation of the bottom
NAV BOX container is a matter of custom design. See
more in Setup Layout.

Actual bottom row variant is shown by a number (1-4)
which is located in the right lower corner of ZEUS screen.

1.5.2.3.1 Custom creation of bottom rows (NAV BOX row)

Any NAV BOX position can be custom designed. The
procedure starts after a long press on Zoom button. A
yellow marked window shows ready status.

Rotate Zoom to find position for your NAV BOX and press
Zoom. A list of possible NAV BOX information will open.
Rotate Zoom to find NAV BOX of interest and confirm it
with press on Zeus.

1.5.2.3.2 Bottom row layout

Bottom row can be positioned on the bottom of the display and as well on the top (in fact any position can
be chosen). The info row can be used as single row, double or triple row. For more information see
Setup/Layout.

Examples of bottom row layouts

Note!

Editing of bottom row is also possible
during flight.

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1.6 Rotary Switches

Both rotary switches are multifunctional; their basic functions are audio volume adjustment and zoom
adjustment. The push function on the rotary switches also offers significant help connected with editing and
selection.

1.6.1 Zoom Rotary switch

Its direct function is the selection of zoom factor (scale of the map) in graphic page. After every change a
new scale factor will be selected and the actual scale is shown as 1: xxxxxx and not in kilometres or Nm
(as it was in older LX Navigation units).

1.6.1.1 Additional functions of Zoom

After press has been activated the function of Zoom rotary switch will change and the switch will become
the most common used switch for LX Zeus operation during editing and selection processes. Any input
and also scrolling can be done after using of Zoom switch.

Example 1: update of MC

 press Vario button
 select item (MC, Bal..) by Zoom knob (rotate)
 press on Zoom knob
 adjust new value, rotating Zoom or Volume
 press on Zoom to confirm it
 press on Volume knob to escape

1.6.2 Audio volume rotary switch

The volume adjustment can be done for vario (in vario mode)
and for SC (in SC mode)
A bar will show audio volume status after rotation.

Note!

Press on Zoom should be used after any attempt to
make inputs. After press immediate inputs are
possible when rotating the knob.

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1.6.2.1 Additional functions

The main secondary function of volume rotary switch is its press function. When pressed in edit mode will
execute jump out of the menu. The push function isn’t active in navigation menus (APT, TP and TSK). After
activation all already done edit inputs will remain, so the button is not a cancel button. By pressing the
volume button in TP, APT in TSK menu, the shortcut to select the TP, APT or TSK will open. Scrolling audio
switch will increase volume by 5%. During input of numbers and letters, rotating will delete wrong input
character and move cursor one position back.

1.7 Automatic jump out of edit

If you get lost in edit, simply don’t touch any command for approximately 15 seconds and the unit will change
back to the last selected menu. This time out in seconds can be set in Setup/User interface/Auto close

inactivity time out.

1.8 Display organization and management

Additionally to geographic map there are also several extra indicators which make the display information
much more effective than a fixed predetermined solution. How to create custom design is explained in
Setup/Layout. Customization of the display doesn’t require any special tools or a computer; all this can be
done in the Zeus by using the rotary switches and push buttons.

1.8.1 Display organization

LX Zeus display consists of the following:

 geographic map
 bottom row (navigation boxes)
 indicators (header is also an indicator)

1.8.1.1 Indicators

Indicators are elements of the display, which can be edited (existence, size, position, transparency). See
Setup/Layout for details.

Available indicators are:

 Header
 Speed indicator
 Sliding speed indicator
 Variometer (bar)
 Variometer classic (needle)
 Wind indicator
 Final glide indicator (selected MC)
 Final glide indicator (MC 0.0)
 Thermal assistant
 Compass
 Compass needle
 Compass assistant
 Airspace info
 Limitations (Start conditions)

Speed ind.

Vari

Final glide
Wind

Header

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 Map scale
 AHRS
 Flaps position
 Flarm indicator

1.8.1.2 Bottom row customization

Bottom row consists of NAV BOXes which are all custom
specific, which means that the pilot is able to create his
own configuration. The procedure is extremely simple and
also executable during flight. The configuration may differ
regarding to mode of operation. The procedure starts with
long press on zoom. After long press the first NAV BOX
becomes a frame. Rotating of the zoom button can move
the position of the frame. As the correct frame position is
reached, pressing zoom again will open a list of available
NAV BOXes.

Available NAV BOXES are:

 Indicated air speed
 True air speed
 Ground speed
 Vario
 Average vario
 Netto vario
 Average netto vario
 Relative vario
 Altitude QFE
 Altitude QNH
 Altitude QNH in ft

 Maximal altitude QNH

 Altitude IGC
 Altitude GPS
 Above ground level
 Circling radius
 Flight level
 Thermal gain
 Thermal last 30
 Thermal average
 Thermal all
 Set MacCready
 Sink speed
 Final glide (selected MC)
 Final glide (MC 0.0)
 Time on task
 Time on leg
 Time to go
 Required speed
 Task speed

 Task elapsed distance

 Task remaining distance
 Task delta time
 Team code
 Team bearing
 Team distance
 Leg speed
 Recommended flaps position
 Wind speed
 Wind direction
 Air temperature

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 Distance in NM to selected TP/APT

 Distance to selected TP/APT
 Off course distance
 OLC distance
 OLC home distance
 OLC speed
 Horizontal distance from airspace
 Vertical distance from airspace
 Arrival altitude
 Estimated time en route ETE
 Current efficiency TP/APT/Task
 Required efficiency TP/APT/Task
 Track TP/APT/Task
 Bearing TP/APT/Task
 Radial TP/APT
 Compass heading
 Digital clock
 Analog clock
 Flying time
 ETA (current speed) TP/APT/Task
 ETA (average speed) TP/APT/Task
 ETA (MacCready speed) TP/APT/Task
 GPS position
 Battery
 GPS signal

To terminate the process, press the volume button.
There is an infinite number of bottom rows available, selectable with 1-4 push button. To create a new row

simply press 1-4 and a new row will open. The display configuration may consist of one, two or three bottom
rows. See Setup/Layout for details.

1.8.1.3 Header customization

Customization of the header should be done in the similar way as by bottom row. After a long press on
volume the customization can start. Size of indicators can be adjusted by rotating Volume button. Box types
can be selected after press on Zoom button. Rotating the zoom button will give the option to select the
position for the indicator.

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2 Setup

Setup menu is available after short press on SETUP
labelled push button. The menu is divided into two sections
(Pilot and System settings). System settings are settings
that are valid for the whole system and are not pilot specific
data. Pilot connected items may vary from pilot to pilot and
depend on individual requirements. Suitable symbols with
text will help you to find the menu of interest.

 use Zoom button and rotate it to find out menu of

interest (selected menu size will increase)

 use push function of Zoom to enter menu.

2.1 Pilot specific settings

The data stored in this part of Setup are pilot specific data.
After pilot selection during booting, the data of individual
pilot becomes active. All settings are saved to the personal
saved pilot profile and are active when the pilot is selected
(reserve altitude, logger settings, NAV BOX line, layout
settings, task colours etc…)

2.1.1 Pilot

Pilots name and certain personal data can be stored. All
stored pilot names will be offered during booting. Selection
of one pilot is mandatory. The system offers one name
called as DEFAULT - can be used as a default pilot.
Furthermore plenty of empty positions are offered and this
can be used for pilot names input. Additionally to the name
some additional parameters can be entered, such as
pilot’s weight, default ballast and reserve altitude – all
that will be calculate into final glide.

2.1.1.1 TDT calculation (task delta time)

This information can only be visualized as navbox and present only in case of task time being set. If task
time is set the unit will recognise this task as assigned area task (AAT). The only function of TDT is to
inform the pilot of early or late arrival.

For TDT calculation you can choose between 4 different options:

• Average task speed is based on current task speed.

• MacCready is based on actual based MC value

• Ground speed is based on average ground speed in last 20 seconds.

• Combined (default*) is based on multiple parameters including: selected MC, wind sped/direction,

polar, bugs, ballast, reserve altitude.

2.1.1.2 AAT calculation

To help the pilot to optimize distance inside sector we offer pilot equidistant lines. This feature is only
available in automatic AAT mode. Flying along this lines will not increase the distance but only lose time on
task. You should fly perpendicular to the lines.

Note!

All settings active at the moment of
new pilot creation under “Pilot” will be
adopted.

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AAT calculation offers two options:

 Automatic (default)

This method doesn’t need any pilot assistant at all, so pilot can turn to next turn point at any time without
using any command. Zeus will automatically detect optimal point in every sector on task. Switch to next
turnpoint is performed by

o Reaching the line which is crossing centre of the sector or already moved turnpoint. Reaching

this point will only switch navigation to next turnpoint (for your information). You can still proceed
inside this sector and Zeus will find optimal position inside the sector to start new leg. New leg
in statistics will start automatically when optimal point is reached.

o Leaving active sector. When you are more than 5km out of the sector. This is done only if there

was no automatic switch inside sector (you didn’t cross the line over center of sector or moved
point) or if you didn’t manually press Next TP button inside the sector.

o Using Next TP button. You can always use this command without influencing statistics. You will

change only navigation data.

 Manual requires manual action in every sector on task. You need to press Next TP button to switch

to next Turnpoint. Position at which next tp button was pressed is then used for task statistic
calculation. In case of wrong decision pilot should use leg restart function, and when he is ready
again he should press next TP again.

Limiting altitude means setting of altitude limit that will turn on the altitude warning alert. You can also save
user (pilot) settings to the USB stick and import user by pressing the buttons: Import user (VARIO/FLARM)
and Save user (TSK/MOVE). There is also an option to put a password to each pilot profile, to prevent,
that other pilots flying with the same unit will be able to change settings to the pilot (this function was
especially developed for flying in the aero club). After press on clear password a password will be removed,
also valid for delete user.

2.1.2 Audio settings

This menu defines audio configuration. The audio
generator is a part of the vario unit (USB D 60), but settings
are stored in LX Zeus.

Speed command mode:

 Defines audio in SC, there are several variants the

most common used setting is both which means
no beep indication by positive deflections.

Speed command volume:

 Defines audio volume in SC, may be increased

decreased…

Vario tone:

 Defines audio in vario mode, you can adjust

frequencies and also types of audio, use Test

vario after adjustment

Alarm: The audio generator is also capable to generate

some alarms (warnings), combining two frequencies. Set
frequencies and time intervals and use Test to check.

Use Test vario option to play the audio variant.
It is important to change over to SC before test;

otherwise vario audio variant will be

reproduced.

The frequencies set are also valid for SC audio.

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2.1.3 Voice

In case that LX Voice Module is a part of the system
following settings can be arranged. Enable or disable all
functions is possible after press on screen buttons.
Voice unit should be selected at SETUP / GLIDER – voice
unit present (icon – CHECK)

Volume:

 Voice volume: defines volume of expressed

messages

 Vario mixer: defines volume proportion

Audio/Voice

General Information:

 Enable or disable general information about pilot,

plane and elevation…

Task Information:

 Enable or disable information about task, turn

point, final glide and time

Warnings:

 Enable or disable warnings

Flarm:

 Enable or disable information about Flarm and

warnings

2.1.4 Vario settings

Settings in this menu define vario characteristics and some
other important inputs connected to vario and speed
command.

Vario:

 vario filter defines dynamic of vario needle. Lower

number means faster reaction and vice versa.

 smart vario
 Integration time (display on vario unit)
 vario scale, three options (2.5, 5 and 10 m/s) (5,

10 and 20 kts, if defined in Units)

Other:

 Silence range, defines no audio area around zero

by speed command

 SC switching threshold, changeover speed which

will change from Vario to SC in case of Auto
setting

 Automatic SC switching, defines way of automatic

change over to SC

 External switch mode*, determinates external SC

switch status which change over to SC

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*LX Zeus has a connection for an external speed command switch, which is wired to the vario unit (USB

D 60). With using an external switch it is possible to switch between SC and Vario manually. Setting the

External switch mode to ON means that closing of the switch will cause SC mode, and setting External
switch mode to OFF means that closing the switch will select Vario mode. There is a third option by setting
External switch mode to Toggle and connecting a push button. Now each press will toggle between SC

and Vario (obligatory setting when using the LX Remote).

2.1.5 Indicators

By Indicator, the vario indicator with its mechanical needle and colour graphic display is meant. One
indicator is incorporated into USB D 60 vario unit. The system is also capable to drive secondary indicators.
Secondary indicators may be simple repeaters or may also indicate different data sets, all depends on
indicator address. Vario unit is always addressed as Number 1, secondary indicators can be addressed
from 1 up to four.

In general every indicator consists of: mechanical needle, SC dot, needle status indicator, upper / lower
digital indicator, battery indicator and GPS signal indicator. It is important to point out that the settings should
be done separately for vario and SC mode of operation. A radial moving dot serves as a continuous speed
to fly indicator, this cannot be changed.

Some explanations of terms:

 Vario needle : means needle function in vario mode, alternatives; vario, Netto*, SC, Relative**
 SC needle: means needle function in SC mode, alternative; Netto, Relative, Vario
 Vario upper nr: display indication by option: integrator, time, flight time, leg time
 Vario lower nr: display indication by option: altitude, distance, glide difference, true air speed, leg

speed, QNH, flight level

 SC upper nr: display indication by option: integrator, time, flight time, leg time

Wire

Shield

Open

Setting: ON

Status: VAR

Wire

Shield

Open

Setting: OFF

Status: SC

Wire

Shield

Closed

Setting: ON

Status: SC

Wire

Shield

Closed

Setting: OFF

Status: VAR

Needle

SC* dot ind.

Needle status indicator

Lower num. indicator

Upper num.

indicator

Wire

SC, Marked

cable

Shield

SC, Marked cable

Schield

Wire

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 SC lower nr: display indication by option: altitude, distance, glide difference, true air speed, leg

speed, QNH, flight level

2.1.5.1 Secondary indicators

Secondary indicators should be connected via 485 system bus. There are three 9P connectors at the back
of the unit. All contacts are absolutely parallel, so it doesn’t matter which one is occupied. The unit can be
also used as 485 system bus splitter. To define indicator number use DIP switches which you find at the
back of the unit.

After indicator functions have been defined, switch the unit off and then on again, this procedure will
memorize the settings and you will be able to adjust settings on Zeus.

2.1.6 Flarm

This menu is mainly used to adapt flarm objects
visualization on Zeus display. The only executive
command which can be send to flarm unit is privacy mode.
Activation of privacy mode will send flarm unit into so­called stealth mode, which means that the data which are
transmitted to and from flarm unit are limited.

Others commands:

 show objects till zoom command (defines zoom till

flarm object will appear on the map)

 default flarm collor (custom designed color of flarm

objects)

Number

Switch

IND 1

x x

IND 2

x

x

IND 3

x

x

IND 4

x x

Note!
Indicators which operate in
second seat, should be
connected to second seat with
485 bus

* Vertical speed of air mass
** Vertical speed – 0.8 m/s

Note!

Setting Altitude QNH means Altitude

indication in ft, doesn’t matter what is

set in Units.

Note!

Units having Adr1
will simply repeat
what is displayed
on the vario.
Higher addresses
make different sets
possible.

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 use above/below color coding (makes possible to

define above and below color of flarm objects)

2.1.7 Logger - Flight recorder settings

LX Zeus uses Colibri II as an IGC approved flight recorder.
Both units collaborate so that all necessary settings can be
sent to flight recorder (Colibri II) via Zeus meaning that no
actions on Colibri II are necessary.
Recording interval is set to 9 seconds per default; event
repetitions are set to 20 and event fix interval to 1.

Extra recording means that user can select also recording
of Ground speed into log file.

This menu is usable only if Colibri II is connected to

Zeus. If you change settings, these settings won’t

change in Flarm or any other Loggers.

In a double seat configuration the second seat pilot is
also able to change logger settings. The process is equal
as on first seat.

2.1.8 Airspace management

All settings connected to AS management are available in this
menu.

Example of Hide airspace above

• You can set maximal vertical and horizontal distance to which airspaces in Airspace info box on
map are displayed. If there isn't any airspace that fulfill this conditions Airspace info box will not
appear.

• Hide above QNH altitude to disable airspaces that are above set QNH altitude.

• You can disable audio warnings (on vario “didldil”) when airspace warning appear on the

Note!

Pilot and glider data are sent after task Declaration
process has been executed. See section flying.

Note!

Hide above airplane

option will remove airspace

sections which are higher than set. This will reduce
load on graphic page significantly.

1000

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• Zeus (warning with dismiss buttons).

Default warnings for airspaces are set to 2 km horizontally and 100 m vertically, but these warning
settings can be adjusted. Warning timeout at take off is pre-set to 5 minutes, which means, that first 5

minutes after take off there won’t be any airspace warnings.

2.1.9 Wind

LX Zeus is able to measure wind under different methods.
The method can be selected in Wind menu. Wind
calculation results are shown as a standalone indicator in
main graphic page and also as NAV BOX if set.

Pilot can choose between two circling methods, which
measures wind during circling and two straight model
methods during straight flight

2.1.9.1 Circling method

 Speed difference is based on ground speed (GS) oscillation due to wind influence in circling. The

method is active exclusively during climbing process. During straight flight the wind data remain
unchanged. The process is started (automatically) after circling is detected. After two* circles wind
indication (direction and speed) will be updated. The method is based on fact that the ground speed
is affected by wind. GS is maximal by tailwind and minimal by head wind. This phenomenon is used
by GS difference calculation method. To increase reliability two turns are necessary for a new result.
To get result the pilot should do two turns as a minimum, more turns will improve result. Note that
up to 90 degrees more is required, as some time is needed to detect circling status. It is important
to keep constant speed during circling.

 Position drift calculates wind regarding to position offset during circling. Such a method needs

more circles (from 4 up to 8). Number of circles should be set in Drift circles option. If both
methods, straight model and position drift are selected Zeus indicates a combined result.

2.1.9.2 Straight model

 None: if you select none, you will have the wind from the latest circling method

 Iterative: This method will update wind even in straight flight, but when you are circling, Zeus will

automatically switch to circling method. The result of this method is wind speed and direction. This
method does not supplement Head/Tail method and gives good results in case of accurate IAS
reading.

 Compass: Compass module should be connected to the unit on 485 bus. Wind calculation is based

on well-known wind triangle method. Airspeed, ground speed and wind create a triangle of vectors.
A compass device offers magnetic heading, which defines direction of airspeed vector. To measure
wind by compass a straight flight with speed and direction as stable as possible is required.

Show on zoom, defines appearance of particular airspace sections on the display. Appearance is
connected to zoom. AS warning can be set as active or as not active ().

*Compass is a standalone electronic device
which can be connected to LX Zeus 485 bus.
Integrated AHRS option also offers the same
functions. The unit’s task is delivering of
magnetic course to Zeus computer.

Note:

Compass option is available
only if compass is connected.

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 Head/Tail – no circling method needed (shows difference between GS and IAS)
 Time for straight flight: time in seconds that will be taken for one measurement (valid for straight

model). Longer period means better result. Valid only for Compass method and not for Component.

 Drift circles: means how many circles are required to calculate the position drift.
 Compass assistant: is a special symbol that appears on the display and helps to keep flight

parameters (speed and direction) stable during calculation.

2.1.9.3 Manual wind settings

 Set manually - user can set manually wind speed and direction

2.1.9.4 Influence of wind in final glide

The actual wind data (speed and direction) influences the final glide calculation. In task mode the final glide
indication is based on remaining distance over all TP until finish (not over already flown turn points). Wind
influence for individual legs is based on actual wind data. Using of component method will define wind
direction on actual track and this value will be taken into final glide calculation.

2.1.10 Graphics (User Interface)

In User interface the pilot can adjust most of graphics,
except for the layout which has its own menu. All
settings are saved to currently selected pilot profile.

2.1.10.1 Map settings

Under map settings menu user can select map palette
colours, glider image, map orientation, distance circles on
the map, range…

2.1.10.1.1 Map palette

To change map colours regarding to pilot personal
requirements, use this menu. There are 12 different map
schemes offered. You can also edit 5 user defined map

schemes. The last option is to disable map (very useful if

you want to see only airspaces and task data).

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2.1.10.1.2 Glider image

Glider image icon can be in all colours and can also be
adjusted by size.

Default:

 Colour white
 Size 25 (maximum size can be 60)

2.1.10.1.3 Map Orientation

The map orientation of LX Zeus can be used in three different ways as follows:

 Track up (The glider always points to the top of the screen)
 North up (North is always on the top of the screen)
 Track circ north(Combination of track up and north up regarding to flight status (circling, straight

flight))

2.1.10.1.4 Distance circles

In this section it is possible to select number, size and colour of distance circles on the map.

2.1.10.1.5 Range (graphic glide reach)

Activation of this feature shows glide range curve from actual position to all direction. This curve is not
necessary a circle due to the in calculated elevation.
Show range from zoom defines appearance of feature regarding of zoom settings (Set on never - function
not active)
Next three setting are connected to fill colour, outline colour and outline width.

Range is calculated and displayed by using following parameters:

 Reserve altitude
 glider polar
 MC
 ballast
 bugs
 elevation
 wind

Note: Range is than displayed only in TP and APT view.

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2.1.10.2 Fonts

Users can define many fonts in the system:

 Map city (default 15px)
 Tournpoint labels (default 15 px)
 Airport labels (default 15 px)
 Flarm objects (default17 px)
 Navbox values (default 30 px) – here you can

change fonts of bottom row

 Header navboxes (default 24 px) – here you can

change fonts of top row

 Distance circles (15 px)

2.1.10.3 TP/APT settings

In this menu you can adjust appearance and length of
labels of TP and APT on the map at different zooms.

 Show TP till zoom (adjust visibility of TP at

wanted size ratio)

 Show TP labels till zoom (adjust visibility of TP

labels at wanted size ratio)

 TP labels length (adjust number of label

characters shown on the map)

 TP label color (select Label color)
 Show APT till zoom (adjust visibility of APT at

wanted size ratio)

 Show APT labels till zoom (adjust visibility of

APT labels at wanted size ratio)

 APT labels length (adjust number of label

characters shown on the map, ICAO code can
be also selected)

 APT label color (select label color)

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2.1.10.4 Task settings

Start lines/zones, turnpoint zones and finish lines/zones
can be given different default colours from a large palette.
It’s also possible to change their outlines, fills and outline

widths. There is a different colour possible for active or

inactive zones.

AAT zones can also show equidistant lines. Equidistant
lines show in AAT zone in which direction you are not
gaining any speed on task.

Default task colours:

 Active zone: pink
 Active start/finish line: red
 Inactive zone: cyan
 Inactive start/finish line: teal
 Legs yet to cover: royal blue
 Active leg: yellow
 Covered leg: green
 Course to next TP: cyan

Transparency can be set at all colours.

2.1.10.5 Airspaces

User can define colours and width of airspace sections
that will meet personal preferences.

Default colours are:

 Selected/active airspace: Blue
 Controlled area: Red
 Prohibited area: Red
 All other: Blue

2.1.10.6 Tail settings

Track of last flown minutes and colours of positive, zero
and neutral vario can be defined in this setting. Draw tail

for last is default set to Always.
Vario color coding setting allows you to enable or disable

color coding. If you disable this function, you can still
choose in which color your track will be shown.

Default vario track colours are:

 Negative: Blue
 Zero: White
 Positive: Red

 ENL: Dark grey

The tail will become wider or narrower due to changing
vario values. Default tail width is 2 pixels. For each 1 m/s,
the tail will become wider by 2 px, up to 16 px (to 5 m/s).

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2.1.10.7 Track colour

This is in fact an extension of the track vector and shows
the pilot where his flight will continue. Default track colour
is Green.

2.1.10.8 Track to destination colour

This is the line that connects the actual position of the
glider with the destination point (track to destination
colour). Default track colour is Cyan.

2.1.10.9 View SUBP 3

Subpage number 3 can be enabled or disabled.

2.1.10.10 Auto close inactivity time out

LX Zeus is monitoring push buttons and rotary switches during editing process. If no action will be detected
the program will change back to the last used navigation page in a predefined time slot. The time is flexible
and can be adjusted from 6 up to 60 seconds and also be disabled (off). If the time is set to off, than the
page will disappear only by pressing the Volume knob (escape button). Default time is 30 seconds.

2.1.10.11 Statistics colours

The colours of statistics page graphs can be custom designed.
Default colours are:

 Background: Black
 Text: White
 Graph normal colour: Grey
 Graph highlight colour: Green

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2.1.11 Layout

LX Zeus offers a very useable feature that makes it
possible to change the main graphic page by pilots
personal preferences. As mentioned in previous section
the main display consists of:

 map
 bottom row
 indicators

The main difference between indicators/widgets and the
rest two options (bottom row and header row) is that
indicators can also be disabled and moved or resized.

2.1.11.1 Layout edit procedure:

 go to setup / Layout
 press Zoom knob on Layout
 check one two or all three panels

to edit (TP,APT,TSK)

 rotate zoom button to select Edit

and press Zoom

 now a screen will open with an orange frame

(orange frame means what is selected – map,
row or indicator)

 select indicator, row or map you want to edit by

rotating Zoom (selection means frame)

Header selected

IAS indicator
selected

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2.1.11.1.1 Customization process of moving and resizing

Move of display element

 Select indicator
 Short press Zoom (a significant cursor symbol

will appear in the middle of the indicator)

 use zoom and volume buttons to move the

indicator

Resize (expand or compress)

 next press on zoom will open similar window

but now with a cross through the selected
indicator

 use zoom and volume buttons to resize it
 terminate the process after pressing the volume

button (a layout saved message will appear)

2.1.11.1.2 Selecting/Deselecting and editing of indicators

Editing process:

 Select the indicator that you want to customize (an

orange frame will appear).

 Make a LONG press on Zoom knob (if you won’t

make a long press than you will get the option to
move or resize it!)

Cross-ready to be

resized

Terminate proces

Selected indicator to be

Note!

After saving the new layout it may occur that nothing
changed on the screen, because you are at the wrong
navigation screen (if you changed the TP and you are
at the APT screen then it seems that nothing has
changed). Press an APT button to select the
customized screen.

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Note!

To escape from Edit Background colour menu
you don’t necessarily have to press Volume,
you can simply wait 15 seconds and the screen
will go back to first (Properties/actions) menu

 Select the colour you want to change (rotate

Zoom) and make a SHORT press on Zoom - a
new window (Edit Background colour) will open

 Now you can change the colour simply pick one

from the palette and press Zoom, or you can
change the colour by using RGB code. If you have
picked one from the palette and you want to add
transparency, simply go back again. Edit
Background colour window (press Zoom) and go
to transparency (press Zoom). Rotate zoom to
change the transparency you want, confirm it by
pressing Zoom and press Volume to escape.

 To terminate the customization press Volume

first to escape from Edit Background menu and
then again press Volume to escape from
Properties/Actions menu. An edited indicator will
appear on the screen that you have customized.

Selecting/deselecting process:

 go to Layout in Setup, press Zoom, select the

screen that you want to edit and go to Edit (press
Zoom)

 Make a LONG press on Zoom and the window

Properties/Actions will open

Edited indicator

After a LONG press a

Properties/Actions menu will open –

correct!

Indication, that the button wrong press
was made - SHORT and not LONG

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Map and bottom row

are not indicators

 Select row: Select Indicators and press Zoom

and a window Select indicators for chosen
panels will open

 Now select the indicators that you want to have on

the screen, or deselect that you don’t require.
Select and deselect them by rotating and pressing
the Zoom knob.

 To escape, press Volume and the selected

indicator will appear on the screen

Properties/Actions window

This window appears by LONG press on Zoom knob. In
this window colours can be adjusted for selected indicator
and also some other settings such as:

 Number of rows for NAV BOX bottom row
 Scale size for Sliding speed indicator

By pressing on the rows below Actions you can:

 Select indicators to be seen on the screen
 Restore your layout to default settings
 Continue with editing indicators
 Save layout and exit with new settings

Selected Compass

indicator

New indicator

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Note!

Restore to default will

Restore back to factory

settings.

Indicators

The following indicators can be selected:

 Header – upper row
 Speed indicator – IAS
 Sliding speed indicator – not the whole IAS – the

shown scale can be customized

 Variometer – sliding variometer
 Variometer classic – rounded variometer
 Wind indicator – shows direction and speed
 Final glide indicator (selected MC)
 Final glide indicator (MC 0.0)
 Thermal assistant
 Compass – rounded compass
 Compass needle
 Compass assistant
 Airspace info
 Limitations (start conditions)
 Map scale
 AHRS
 Flap position

 Flarm indicator

Map – NAV BOX transparency

Map can be only resized. If you want to have your NAV
BOXes transparent, than the map should be maximum
stretched and the bottom row should be set to
transparent.

2.1.11.2 Copy NAVBOXes

Under Layout user can copy NAV BOXes from one screen
to another or to have nav box configuration the same on
all screens (TP/APT/TSK). User should prepare its NAV
BOXes on one screen that is also a reference panel for
other screens. When a reference panel is selected, user
should check destination panels, where the NAV BOXes
will be copied. After that a press on Copy from reference
to destination will be needed.

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2.1.11.3 Copy layout

User can copy one layout to one or both remaining layouts.
Under Reference panel you choose the layout you wish to copy. Under Destination panels you choose
to which layout to copy the reference layout. After this has been sorted out, select under operations- Copy
from reference to destination. A green message will appear, telling you layout was successfully copied
and saved.

2.1.11.4 NAVBOX as an indicator

NAVBOX can be also added on the map as an indicator. There is no limitation in quantity of NAVBOX
indicators on the map. Each NAVBOX can be customized (different colour, transparent).

Procedure:

 TO add a NAVBOX go to Layout and select the screen you want to adjust, press EDIT
 Long press on ENTER button will open a Properties/Actions window
 Move down to “Add NAVBOX indicator)
 To remove it, select the NAVBOX and make a long press on ENTER
 Select “Remove “xy” NAVBOX”

2.1.12 Brightness adjustment

The display used in LX Zeus is a high quality sunshine
readable display and its backlight will satisfy the pilot’s
requirements during the majority of the flight time. In the
special case of increased backlight need, the pilot is able
to increase the intensity for a limited time (30 minutes).
After 30 minutes the backlight will go back to default. After
press (zoom) on Brightness icon, a change will happen
followed by a clear message.

Note!

Not valid for LX Zeus 4.3, 2.8. Zeus 4.3 does not have
the brightness adjustment option.

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2.2 System Setup

The parameters set in this section are valid for all pilots and are therefore global.

2.2.1 Units

A huge palette of units can be defined in this menu. By
pressing the TSK/MOVE or SELECT/NEAR buttons you
will press the screen buttons ‘Set metric’ or ‘Set imperial’
and all units will change to metric or imperial.

2.2.2 Glider (glider polar selection)

Nearly all glider polars are stored in the LX Zeus memory.
Additionally to these standard polars it is also possible to
create custom polars, by changing the parameters.

In the glider menu it is possible to add all information about
glider such as:

 Competition ID
 Registration number
 Equipment weight
 Polar 1, Polar 2 (not possible from sec. seat unit)
 Speed indicator settings
 Flaps position settings
 TE level (not possible from second seat unit)
 TE filter

Polar 2 is very usable if you have a glider with different wingspan (example: ASG 29 – 15 m, ASG 29 – 18
m). After Zeus is turned on, an option to select your polar will appear.

2.2.2.1 Speed indicator settings

The user can adjust speed markings of IAS indicator on
Zeus.

2.2.2.2 Flaps position settings

For gliders with flaps, Zeus offers an indicator on the
screen that will remind pilot to change flap position. User
must define speeds and number of positions in this menu.
An indicator can be selected in Layout as a Flap position
indicator or as a Navbox – Recommended flap position.

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2.2.2.3 TE level and TE filter

TE level***, set TE compensation style, 0% for tube compensation
TE filter***, only valid by electronic TE compensation

The LX system incorporates two configurable electronic filters in the circuitry. The first filter adjusts the time
constant and is adjustable between 0.5 and 5 seconds. The 0.5 setting is the fastest while the 5 setting
provides maximum damping.
The second filter, called the Smart Vario, is a dynamic filter and controls the rate at which the vario indication
moves. When set to OFF, there is no restriction on the rate of movement of the vario indication other than
the setting of the time constant filter. When set to 1, the vario indication will not move faster than 1 m/s (2
kts) per second, while when set to 4, the vario indication will not move faster than 4 m/s (8kts) per second.
It should be noted that when set to 4, the vario indication will move four times faster than when set to 1.

Summary:

The Smart Vario should not be used in isolation but in conjunction with the setting of the time constant filter.
When the Smart Vario is activated, the time constant filter may need further adjustment to provide optimum
indications.

***LX Zeus has the capability to offer variometer total energy compensation in two ways. Selection of

compensation method is done after selection of the % figure. 000% means total energy compensation by
using a TE tube. When using this solution the unit does not process compensation, this depends entirely
on the TE tube and its installation. After an input of a percentage that is other than zero the special software
routines will be activated and will provide an electronic compensation process. The default value is 100%
but this can be varied following a test flight.

The TE compensation can be fine-tuned during flight with the following procedure. It is essential that this
is only done in smooth air; it is not possible to tune the TE accurately when there is a lot of thermal activity.

 Select 100 % and default TEF (TE filter)
 Accelerate up to approximately 160 km/h (75 kts) and keep the speed stable for a few seconds
 Gently reduce the speed to 80 km/h (45 kts)

Observe the vario indicator during the manoeuvre. At 160 km/h (75 Knots) the vario will indicate about –2
m/s (-4kts). During the speed reduction the vario should move towards zero and should never exceed zero
(slightly positive indications are acceptable). If the vario shows a climb, then the compensation is too low,
increase the TE%; and vice versa. Repeat this procedure and make further adjustments if necessary.

The TEF (TE filter) is the compensation delay. Larger numbers will increase the delay and vice versa. During
the first test is recommended to use TEF 4.

Electronic TE is only effective when the pitot and static sources are co-located and the pneumatic lines to
the instrument are approximately the same length. The best sensor to use is the combined pitot/static
Prandtl tube. If problems are experienced with the electronic TE compensation, then the most likely cause
is the glider's static source. The static source can be checked by changing the connection of the pneumatic
tubes for electronic compensation, and then setting the TE: to 0%. In still air, accelerate to approximately
160 km/h (75 Knots) and reduce the speed. Observe the vario indicator. If the static source is good, then
the vario should immediately start to move showing a climb. If the needle initially shows increased sink and
then moves to a climb, the static source of the glider is unsuitable and there is no way to provide successful

FILTER

0.5 to 5

SmartVario

FILTER

1 to 4 or OFF

RAW VARIO

FILTERED
VARIO

VARIO
INDICATION

Note!

Electronic and pneumatic TE compensation requires

different connection of tubes.

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TE compensation electronically. The use of a dedicated and accurate fin mounted pitot/static source such
as a Prandtl tube might help.

There are two ways by which the vario units can be corrected for total energy; electronic TE compensation
based on speed changes with time; and pneumatic compensation with a TE probe. When using pneumatic
compensation by use of a TE probe the quality of the TE compensation depends entirely on the location,
size and dimension of the TE tube. The installation must be leak-proof.

Note!

If electronic TE compensation is selected, then the TE (Pst) port should be connected to a good static

pressure source. If pneumatic compensation is selected, then the TE (Pst) port should be connected to

the TE probe.

Compensation with TE probe Electronic compensation

2.2.3 Checklist

Check list can be made on LX ZEUS system. After press on screen button NEW there will be a checklist for
specific operation “example: Take off”. After press on Edit List a window Edit Checklist will open. Here it is
possible to add operations and actions.

To go through Checklist, simply select the checklist and press Enter. To confirm an action press enter until
the end of checklist list.
It is also possible to create and edit your checklist on a computer. Use Check list editor software for Lx
Zeus which can be download from www.lxnaviagation.com under software.

TE (Pst)

port on

vario

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2.2.4 Notepad

In the Notepad menu you can prepare your own .txt file
with whatever you might find useful. You can prepare
checklists, notes, input frequencies etc…

File .txt can be uploaded with the USB stick by pressing
the screen button LOAD (button SELECT/NEAR). Notes
can be also written directly in Zeus by using Zoom and
Volume knob.

 Screen button MODE is to change between

uppercase letters, lowercase letters, numbers,
symbols, navigate etc…

 Using NAVIGATE means that you can move at the text by using both rotary switches. Characters

can be deleted by pressing the Volume button. To confirm the written text, you should press mode,
change to symbols, find enter symbol and then confirm it by Zoom press.

 Screen button METHOD is to change between replace and insert characters into written text.
 Copy to USB is to copy your current note to USB stick and the file will appear on the stick in .txt

format.

 Load is to upload .txt file from USB stick.
 Save & Exit – it will save the current notes and also exit to setup menu.

2.2.5 Transfer

The only solution to transfer data to LX Zeus and vice
versa is via USB stick. One stick is also part of delivery.
The stick that comes with the unit is already prepared.
After selecting the item of interest (press on Zoom) the
procedure will start.

The transfer procedure:

 Insert USB stick
 Press SETUP button
 Select Transfer
 Press Zoom
 Select what you want to transfer (example

airfields), and press Zoom

 Select “transfer file from USB” and press Zoom
 Example: all .af files stored on USB stick will be

shown

 Select file of interest and press on Zoom
 Transfer will follow and you will receive a window

and a green check

 Go to Select, press Zoom and select the file
 The file is now activated (green check at select

row)

How to delete files (APT, TP, AS):

If there are some files stored in LX Zeus memory which
are not actual, they can be removed using Delete internal
files command. The command is executable for Airports,
Turn points and Airspace.

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2.2.5.1 Transfer of Airport data

LX Zeus is capable to accept airport data in LX Navigation
format (.af). The data is available on
www.lxnavigation.com. The database is free and no code
is required. The airport files include regular airport data of
one continent.

2.2.5.2 Transfer of Turn Point data

The turn point data should be included in a file with
extension .cup.

LX Zeus can store nearly an unlimited number of .cup
files (with 2000 TPs in a file).

Three files of TP can be active at the same time. Turn
points of all three files will be available for navigation
without any limitations.

2.2.5.2.1 Transfer of Tasks

Task can be uploaded to the Zeus system via USB key.
If you wish to transfer a specific task do as follows:

o Export:

 Insert USB stick
 Press tsk button and select Save to USB (this

will save the task in .cup format)

 Remove USB stick

o Import:

 Insert USB stick
 Press setup and go to transfer
 Go to turnpoints
 Go to transfer file from USB
 Select the desirable task
 Go to the TP/Task file window and activate the

desirable task.

If you wish to transfer all tasks do as follows:

o Export:

 Insert USB stick
 Press setup and go to transfer
 Go to task
 Select Save tasks to USB (this will save all

the tasks as one file in .tsk format)

 Remove USB

o Import

 Insert USB
 Press setup and go to transfer

Important!

Only one .af file can be active at the
same time, so activate the file after
transfer, after using of Select function.
A green check means active file.

NOTE
The first TP file is also a so called TASK file, which
means, if you want to import tasks from file, then you
have to select your file at TP/Task file.

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 Go to task
 Select Transfer file from USB

This is valid only for TASKs made on Zeus, tasks done on Seeyou or Strepla have to be uploaded
at TP (TP/Task file).

2.2.5.3 Transfer of Airspace files

Use Airspace option of Transfer menu. The files should be
in .cub format. The actual airspace data are available for
free on www.lxnavigation.com. The airspace files normally
cover the whole continent.

At the same time, 3 airspace sections can be active.
Loading of airspace files created for events is also
possible.

Airspace character length can be maximum 11 characters
+ .CUB.

2.2.5.4 Transfer of Flarm net files

Files with extension .fln include Flarm customized IDs.
That makes it possible to identify gliders in the vicinity with
their original IDs (usual competition numbers). The file is
available on http://www.flarmnet.org

2.2.5.5 Transfer Charts

ICAO charts can also be used on the Zeus. The ICAO
charts should be ordered and purchased from LX
Navigation. The file for the charts has to be .ras format.
Charts will be activated after importing a license file, which
you will receive from LX Navigation after payment. The
license file should be transferred via the USB stick. At row:
view installed charts you will see if your file is licensed.

ICAO charts are made by the Deutsche Flugsicherung.
This is the reason that charts have are not free.

2.2.5.6 Transfer Checklist

Checklist file can be done on personal computer. File must be written in notepad (.txt format). File can be
uploaded into LX Zeus system under this menu.

2.2.5.7 Logbook transfer

Flight file can be transferred from Logbook under Statistics or from this menu.

2.2.5.8 Translation files transfer

File can be translated via special software from LX Navigation (ask for it). Once a file is completed it can
be transferred into LX Zeus in this menu.

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2.2.6 Service

The menu is mainly used for maintenance except:

 Compass calibration
 Level adjustment by units with AHRS

 Detected hardware

With admin password you can set your Zeus back to
factory settings with the password 46486. This will also
delete all flights from Colibri II.

Useful passwords:

 Factory reset 46486
 Grab image 315
 Delete all flights 99999
 AHRS disable 2478

 Voltage offset 8658
 Screen rotate 9109

2.2.6.1 Screen rotation

Screen can be rotated after inserting a correct password. When a password is entered a reboot of the unit
is needed.

Password:

 9109

2.2.6.2 Compass calibration

Compass module has to be connected to the main unit (in case of double seater, connect to first seat) on
485 bus. Install a module horizontally without any pitch, after that enter to the compass calibration menu.
Position your compass to north and press SET, after that you will have to position your compass to all
magnetic directions seen on the screen. When you are sure that your compass is positioned to a correct
direction you should press SET. When a window with sentence Calibration completed press a screen button
SAVE and you will exit back to a setup menu.

Factory reset WARNING!

All files (TP, AS, APT) will be deactivated and also pilots will be set to UNKNOWN – all pilot’s settings
will go back to factory settings (save your settings to the USB stick at SETUP MENU/PILOT – save user

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2.2.6.3 AHRS Level adjust (Pitch and Roll)

If the AHRS is not aligned with the glider, then it has to be
adjusted.

Changes in pitch are caused by changes of aircraft mass
and changes of airspeed. This reference pitch
corresponds to one airspeed (indicated airspeed actually)
and one aircraft mass. When the glider flies faster or
slower, or if the glider is heavier or lighter, then the pitch
angle deviates from the reference.

Adjustment procedure is:

 The internal reference level of Zeus instrument is

most likely to be different. So you need to adjust
it. On the ground, put your aircraft in the position,
which you think that matches the position for the
reference airspeed. (Do not worry, if this is slightly
wrong.) Adjust the Zeus to this level after press on
button….

 Make a test flight with your aircraft. Aircraft should

be as close to the reference mass as possible. Fly
at the reference airspeed and observe the pitch
indicated by Zeus. Record this pitch on paper.
This observed pitch is the error, which needs to be
corrected.

 Repeat the Zeus level adjustment, but now put

your airplane in such position (lift or lower nose or
tail wheel), that pitch on Zeus indicates the same
angle as you have observed during your previous
flight. Be careful, to keep wings level. This is now
your reference position.

 Keep this position of aircraft (do not move it) and

adjust Zeus to be perfectly levelled.

Instrument procedure:

 Go to SETUP / SERVICE / Level adjust
 When the glider is in position to be calibrated

press on screen button adjust (VARIO/FLARM)

 Wait until status bar reach 100 %
 A significant message SUCCESS will appear
 If you are satisfied with new settings, then press

screen button save (STAT/EVENT)

 A message Parameters saved will appear

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2.2.6.4 Disable AHRS

If you wish to disable AHRS simply do as follows:

 Push on zoom rotary switch
 Go to setup
 Go to Admin password
 Enter password 2478 and confirm with push on

zoom rotary switch

 A disable AIRU window will open, there you can:

o Choose a time period (in days) for how

long you wish to disable AHRS

o Disable AIRU (AHRS), period

2.2.6.5 Detected hardware

User can check which hardware is connected (recognized)
at LX Zeus system.

2.2.7 Locale

Here UTC offset to get local time, date format, time format
and Position format and language can be adapted to local
preferences. A restart is needed for applying this settings.

3 Update procedure

Lx Zeus software is constantly being upgraded. Please contact your local dealer for the latest upgrade.
Upgrade procedure is very simple and can be done by User.

Do as follows:

 Put upgrade file on USB
 Insert USB stick into Zeus
 Turn Zeus off and on again
 Hold Vario/flarm button till a window opens
 Select upgrade with a push on zoom rotary switch
 Find the update on your USB stick
 Select the file with a push on zoom rotary switch
 Wait for installation
 In case of Double seater configuration you might be asked if this is FIRST or SECOND seat

(confirm correct one)

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4 Navigation modes

LX Zeus offers three modes for navigation. These modes are:

 APT: navigation to Airports which are stored in APT memory
 TP: navigation to turn points (TP)
 TSK: task navigation after a task has been entered

Any of the three modes are selectable after sequenced pressing on A-P-T push button.

4.1 APT mode (navigation to airports)

LX Zeus is capable to store more airport data files in .af format (LX Navigation airport format). At the same
time only one file can be active. Selection of the file of interest should be carried out in Setup/Transfer
section Airfields.

APT mode consists of three navigation pages (1st is map navigation page, 2nd is subpage with information
about selected airport and glide path, 3rd is a map and a 3D view (if not selected then a vertical profile). Any
of them is directly selectable by SUBP button.

Note: the third subpage (3D terrain) can be disabled (see Setup User interface).
Airports are marked with a symbol (filled black line means airport with asphalt, a line

without fill is a grass runway):

The RWY orientation matches the real situation. Extended Airport data are available in the lower section of
the second navigation page. After pressing 1-4 button the supplemental information page in form of a
vertical profile will open.

4.2 How to select an airport?

Airport selection is active from any mode of operation and
also from any subpage. Use press on Select button (short
press) and select menu will open. Use screen button APT
by short press at TSK/MOVE and selection dialogue will
start.

Now scroll with a Zoom knob to select a filter such as:
Country, Name, Distance Track or Arrival altitude to
reduce number of offered Airports. If you use filter sort by
distance, then it is not possible to use a name filter; only
country filter is then possible. After the airport of interest is
found confirm the choice with short press on Zoom. The
APT screen will open with track to destination.

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Note!

When using Name filter, input first letters of the airport
name. Use Zoom to scroll and press for confirmation.

You don’t need to input all characters, just first two or

three and after that you can go on by pressing Zoom.
Input of more characters reduces the number of
possible airports.

4.2.1 APT selection from NEAR function

LX Zeus also offers NEAR function. After activation, which
can be done by a long press on SELECT/NEAR button,
nearest Landable points/marker will be offered. The list
includes airports from the Airport database, turn points that
are declared as landable and Marker.

4.3 Navigation in APT / TP or TSK mode

There are three navigation pages possible (APT, TP or TASK) and also 2 subpages are possible all
selectable by SUBP button.

4.3.1 Sort by filter

Every turn point can be selected by using the following filters:

 Name (alphabetical sorted from number-A-Z)
 Distance (closest TP will be shown as the first)
 Track (TPs -30 to +30 degrees from current track will be shown)
 Arrival Altitude

4.3.2 Main graphic navigation page

Variometer

bar

Status indicators

APT /TP or TSK name

Steering com.

Distance

Note!

Selection is limited to 200

nearest points

Bottom row –
NAV BOXes

Final glide
indicator

Bearing

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The bottom row consists of NAV BOXes. Bottom row variants are selectable by 1-4 push button. Any NAV
BOX content is custom programmable after using a very simple procedure.

Editing NAV BOXes:

 Long press Zoom (orange frame will appear)
 Move orange frame by rotating zoom to free space, or replace current NAV BOX by short press on

Zoom

 Select the NAV BOX you want with rotating zoom and confirm it by Zoom press
 If the row is full, press 1-4 push button and add new NAV BOX with the same procedure

4.3.3 Second navigation page (subpage)

Second navigation page is divided into two sections; the
upper section consists of a vertical profile. The vertical
profile will show you the terrain, glide path distance,
Airspaces (yellow and red), selected TP/APT and a cone.

The cone depends on the MacCready setting. The lower
line is a MC setting 0 and upper line is your currently set
MC. If the glider icon is between upper and lower line it
means that you are still below glide path for your set MC,
but you will still reach your destination with a lower MC
setting. If the glider is below the lower line you are too low
and you won’t reach your destination even on MC 0.

The lower section shows APT / TP data such as:

 Grass or asphalt runway with directions
 Elevation
 QNH alt
 Flight level
 QFE alt
 Frequency of the APT
 Your current radial
 Your current distance from selected APT / TP

At TSK the lower section is a circling log page, wind
profile page and a statistics page with:

 Legs
 Speed
 Distance flown
 Duration
 Vario average
 Circling on task in percentage

4.3.4 Third navigation page (2nd subpage)

The third navigation page shows terrain data that is split to
a map and an AHRS (artificial horizon). If the AHRS is not
purchased as a part of the Zeus system, then it is a vertical
profile.

Note!

This 3rd page can be disabled after command is
executed in Setup/User Interface.

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4.3.5 Use of Remote Stick in APT

All basic APT functions including fast selection of APT can
be done by using the LX Remote Stick.

Zoom IN/OUT:

Use buttons Minus and Plus on the Remote Stick

Select ATP screen:

Use APT button and press it until you will have the
indication on the top in left corner APT

Select second page:

Use SUB and you will the second or third page of the
screen

Change information at second page between APT info
and Terrain:

Use 1-4 button, you can also Zoom In/out with Minus / Plus

Select APT:

 Press X button
 Use MINUS to go to Country, Name or Sort by distance filter
 Use Check/confirmation button to select your filter (Example Name filter: press Check, press Plus

to change the character and press confirmation, go down with Plus and select your APT with Check
button)

Change MC:

 Press MC
 Press Minus / Plus button
 Press X to escape

4.4 Turn point mode

The structure of the mode is similar to APT, the only important difference is, that the navigation is towards
turn points that are included in turn point files. The turn point files (.cup) should be uploaded by USB stick.
See Setup/Transfer for details. Practically an unlimited number of .cup files can be uploaded. Turn points
can have different attributes and therefore also symbols that represent that turn points are different.

Turn point TP as grass airfield
TP mode consists of three navigation pages (1st is map navigation page, 2nd is subpage with information

about selected airport and glide path, 3rd is a map and an AHRS – if no AHRS, then vertical profile. Any of
them is directly selectable by SUBP button.

Note: the third subpage can be disabled (see Setup User interface).

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Extended TP data are available in the lower section of the second navigation page. The upper part of the
display (2nd –subpage) is vertical profile.

To get the screen buttons for TP
options, Zoom should be pressed at TP
screen (not at APT, TSK).

4.4.1.1 Edit TP

Press Zoom button, select screen button Edit TP (press
TSK/MOVE push button), and a new window Edit turn
point will open.

4.4.1.2 Creation of User Turn points

User turn points are turn points that are created by the pilot
after using commands of LX Zeus. Such turn points are
marked with U and a PILOT icon in front of its name.

4.4.1.2.1 Auto TP

If you select Auto TP, a user TP will be created, with the
current position and the current time as it’s name. If you
wish to edit an Auto created TP use the Edit TP function.

4.4.1.2.2 Creation of a Turn point by hand

Press on Zoom button and following menu with screen
buttons will open. Run Add TP after pressing on
STAT/EVENT push button.

Following should be imputed:

 Name
 Details (not obligatory)
 Type (grass, field, tower…)
 Longitude, Latitude

Note!

Up to three turn point files can be active at the same time.
The activation should be provided in Setup/Transfer. Turn
points included in all three files will be available for navigation.
The first is TP/TSK file, which will import also tasks.

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 Elevation

Next three inputs may not be highlighted due to the type
or turn point you are adding. Finish the process with Add
turn point.

4.4.1.3 Add Marker

The philosophy of a marker is to mark a position that you
want to have as your backup.

For example, you are flying towards non-landable area
and you see the last landable field below you. At this
landable field position you can drop a marker. You will be
able to navigate to your marker, which you can select at
NEAR/TP, or select TP.

You can have only one marker at once. If you will drop
another marker, the first one will be replaced. The marker
can be also changed to TP via EDIT TP. It can be also
deleted via DELETE TP.

4.4.1.4 Delete TP

Only user created turn points and marker can be deleted.
To delete TP you should press Zoom, select screen button
DELETE TP and a new window will open. Select the TP
by rotating the Zoom knob and confirm it with short press.

4.4.1.5 Send TP

If you select Send TP, you can send the current selected
TP to the second seat (all info about the TP will be send).

4.4.2 Selection of a Turn Point

The selection process is similar to APT. Use SELECT
button to start the process and press at screen button TP.
Country, Name and sort by distance, track, arrival altitude
filters will expedite selection. Turn points are visualized by
symbols.

Note!

Type option offers plenty turn point

designators. The designator defines
the symbol that will appear on the
display. Landable points will also be
listed in NEAR function.

Important!

Turn points without country designators are
selectable only when using Country “All” option. This
is also valid for user turn points. It is advised to manually
check and correct your files before uploading them to
Zeus, to ensure maximum software potential.

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Note!

Tasks that you want to upload to Zeus
should be a part of a .cup file and should
be selected in SETUP/TRANSFER as

TP/TSK file. It is very important that you

name the task, otherwise the Zeus

won’t recognize it.

4.4.2.1 Selection from Near

LX Zeus Near function offers Turn point selection based
on distance. Respected that there is also Country filter
active, use All if you want to get all turn points listed.

4.4.3 Navigation to a Turn Point

Navigation towards a turn point doesn’t differ to navigation to an airport, so refer 3.3 for details.

4.4.3.1 Use of Remote stick

Use of Remote Stick is the same as for the APT, read more at 3.3.5

4.5 Task Mode

Task is a complex process that guides the pilot around the turn points of the task. Each task consists of
turn points, start point and the finish point. Additionally take-off and landing can put in, but those points
don’t have any influence on task execution.

4.5.1 Task organization

Zeus has storing capacity for 101 tasks. 50 tasks can be
imported in one .cup file and such tasks are called
imported (IMP), next 50 can be created by user in LX
Zeus (by hand) and those tasks are called User (USR).
After creating or selecting TSK, the TSK is automatically
declared.

4.5.1.1 Task declaration

Declaring the task is an automatic process. After a task is constructed and exit is pressed (Volume knob) a
very clear message on the LX ZEUS screen appears: TASK DECLARED! This means that LX ZEUS will
start sending the declaration data to loggers. The declaration is sent to Colibri II automatically – with all
TPs, edited zones, limitations etc... Colibri II has the priority and will receive the data first. After this,
declaration data will be sent to FLARM. The process will take about 30 seconds. After the process is finished
all LED lights will switch off on the FLARM display and the red POWER light will start blinking. This means
that the process of sending task declaration to FLARM is finished.

4.5.2 Task selection

To select task from LX Zeus active task store use Select
button and select screen button TSK. Use Zoom knob to
select task of interest. During the selection process all task
relevant data will be present. Confirm selected task by
pressing Zoom knob and you will get another window with
task details. Exit by pressing on Volume twice, or wait until
the window will escape automatically (if you have auto
close inactivity timeout set).

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User task Imported task

4.5.3 Task creation by “hand”

To create new task you should press push button
TSK/MOVE (short press) or short press on Zoom. The
task can be created by hand after using of NEW or EDIT
screen buttons. Edit will make it possible to edit an existing
task and New will offer creation of a new task. Both tasks
will be saved in USER (if you edit an IMP task, it will

automatically change from IMP to USR).

The procedure:

 Press TSK/MOVE button
 Select screen button NEW (TSK/MOVE) or EDIT

Task (VARIO/FLARM).

 If you have an AAT task, then add time by press

on Zoom and rotate Zoom/Volume, terminate by
pressing Zoom.

 Rotate zoom to add Task name – press Zoom and

add name.

 Rotate zoom to TPs – press zoom and

select/insert TP or APT. Only TPs can be deleted
(start and finish not).

 If you agree with the task then press Volume to

confirm – you will get the message that the task is
declared.

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Task Zoom

4.5.3.1 Create and Edit Zones

ZONE function makes it possible to create any known
geometry for turn points, start and finish. The zone can be
edited by selecting TSK EDIT/ select TP / ZONE. The
creation consists of input of sector angles radius and
orientation.

After a press on Next zone or Previouse zone buttons the
user can change zone settings very quickly without any
additional actions.

Auto next input defines change over philosophy over turn
point. AUTO means automatic change over immediatelly
after sector will be reached. This function is default active
as sector radius is below 10 km (assumed racing task).
Bigger sectors offer a non automatic change over
(assumed AAT task). If Auto next NO is active, MOVE
function (for AAT) will become active and that makes
possible to modify the task distance even before flight.

MOVE during active TSK is also possible. Long press on
push button TSK/MOVE will open a move window. You
can move your ‘custom turn point’ by rotating Zoom and
Volume. During move you will see the imporant
information next to your moved TSK (Total distance,
Required speed, final glide at MC 0 and selected MC).

Note!

The task can also be seen at full
ZOOM OUT – you will get the TASK
ZOOM function. The task zoom will be
active only if on the ground!

Note!

AAT task – if the sector is bigger than 10 km, than AUTO next won’t be active. If the sector is smaller
than 10 km, then you have to uncheck MOVE in ZONE menu

Note!

Active zone has a different colour than
inactive zone (colours can be adjusted
in SETUP / USER INTERFACE /
TASK COLOURS

Note!
Default task zones can be adjusted in SETUP / USER
INTERFACE. User is able to adjust default start, waypoint
and finish zone to make task creation even easier. When
a new task will be created these zones will be in use as a
default.

Minimum calculated
distance between
turn points

Maximum calculated
distance between
turn points

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4.5.4 Task Start (ARM), Restart, Next TP, Clear, Save, Team Code,

Limitations

Automatic and manual starts are possible by using
functions ARM and NEXT TP. All functions are available
by pressing Zoom or push button TSK/MOVE

4.5.4.1 Task Start

To start automatically use the ARM command which is
offered after a press on TSK button. Arm means that the
task will be automatically started after crossing the start
line. If you then cross the start line multiple times, the time

of the last valid start will be used for statistic calculation.
Every next start is also visualised by a green
message.

During flight you can also disarm your task. Activation of
ARM and also DISARM are clearly shown on the display
by the message and an ARMED icon.

If you forget to press ARM and you are already on the task,
then you have the second option to press NEXT TP. Next
TP command will change over to next TP every time when
activated, doesn’t matter if the glider is in the sector or not.
It will also take your latest starting line crossing time, so
that task statistics will be correct.

4.5.4.2 Task Restart function

After task has been started (method doesn’t matter) a task restart can be executed at any time. Use Restart
button in the TSK menu. Restart button will become active after task starts. After restart all task statistics
data will be zeroed and ARM status will become active, which makes it possible to provide next automatic
start.

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4.5.4.3 Over Turn point

Change over to next turn point may be automatic or
manual. Automatic changeover will happen when Auto
next of individual zone is set to auto. If the zone is not
AUTO NEXT, then you will get the message INSIDE zone.
If you want to go to next, press TSK/MOVE and press
screen button NEXT TP.

Default setting for Auto next:

 R1 below 10 km Auto next active (automatic

change over)

 R1 above 10 km manual change over necessary

4.5.4.4 Saving TSK to USB

LX ZEUS offers the option to save created or edited tasks
to USB. A USB stick has to be inserted in the USB port.
After creation of a Task, press volume knob to escape and
confirm task. After that press TSK button and press SAVE
TO USB, which is near to the SETUP/INFO button. The
Task will be saved to the USB stick as a .cup file with all
the tasks TPs and zones.

4.5.4.5 Clear TSK

When in the creation or editing menu of a task, the whole
task can be erased with two pushes. First press CLEAR
TASK, which is near SETUP/INFO button and then press
YES to confirm your choice or NO to terminate the process
without erasing the task.

Note!

Manual changeover is possible exclusively by Next TP command. Next TP is always active and it will
execute changeover to next TP at any time. Activation of this command when you are still out of the
sector will degrade statistic data. Solutions: deleting of the TP that will not be rounded, or extending the
zone/sector.

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4.5.4.6 Team Code

Team code is a feature enabling you to visualize the
position of your wingman and keeping it secret. Short
pressing TSK button, a TEAM CODE icon is visible on the
right side, near the 1-4 button. Press 1-4 button and a
menu requiring team code and reference point will appear.
To use this feature three NAV BOXes have to be switched
on; TEAM CODE, TEAM BEARING and TEAM
DISTANCE.

Before take-off, flying partners have to decide which
reference point will be chosen. For better indication (more
accurate) a reference point which is 50-150 km away from
every position in the flight should be chosen (for example
the task that is flown should be in the 50-150 km radius of
the reference point; if the task is bigger a second
reference point should be chosen and entered after
passing a certain distance). In flight, when partners are
interested about their location, team codes should be
exchanged (via radio) which are visible in TEAM CODE
NAV BOX. Partners are able to see bearing and distance
to each other in the TEAM BEARING and TEAM
DISTANCE NAV BOXes.
The feature works on the principal of the polar coordinate
system. Baseline condition to be fulfilled is a reference
point. When this is chosen, LX ZEUS calculates distance
and bearing from reference point to pilot’s location and
codes it into TEAM CODE. First two characters mean the
angle and the last two the radius from the reference point.
When this information is given to a partner with the same
reference point chosen, LX ZEUS can calculate direct
bearing and distance to the other partner. The process
works either way between partners.

4.5.4.7 Limitations

Here you can put in task start conditions. It is possible to:

 Define Gate time
 define before start

o Below altitude
o Below time

 Define start conditions

o Start altitude
o Start ground speed

For the explanation of these terms read more under
chapter 12.2.4.1 Start Conditions/Limitations

4.5.5 MOVE Function (during flight)

When flying an AAT, big sectors are set and therefore the
pilot has to decide where to turn to next point. Function
MOVE helps the pilot to find optimal solution. After long
press on TSK/MOVE button the so called MOVE function
will become active. Use Zoom and Volume knobs to move
the turn point. All task relevant data that are affected by
the move command are shown next to the zone.

During straight flight far from zone the track will appear in
the zone in MOVE function. When the glider will be in the
zone, the real-time picture (glider with its track) will also be
shown in MOVE function.

Bearing

Track

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4.5.6 Task Zoom

By rotating zoom knob to the left will show the whole task
(task zoom) on the screen. Task zoom will show all turn
points (moved and modified) with airspaces. Task zoom is
not visible while flying, only on the ground.

4.5.7 Use of Remote Stick

All basic functions including selection of TSK can be done
by using the LX Remote Stick. To select TSK, the TSK
screen should be active (upper left corner TSK sign).
Press X on the Remote Stick and you will get the window
with user and imported tasks. To select use Minus / Plus
and confirm with Check symbol. Do the same procedure
to change anything on the TSK.

Zoom IN/OUT:

Use buttons Minus and Plus on the Remote Stick

Select TSK screen:

Use APT button and press it until you will have the
indication on the top in left corner TSK

Select second page:

Use SUB and you will the second or third page of the
screen

Change information at second page between APT info
and Terrain:

Use 1-4 button, you can also Zoom In/out with Minus / Plus

Change MC:

 Press MC
 Press Minus / Plus button
 Press X to escape

Select in TP/APT/TSK mode

Press “check” buttonand windows with different functions will open, depending if you are in TP, APT or
TSK mode. One of them will be yellow, which means, that this window is the current chosen one. You can
move to a different window with the + or – zoom buttons. To select the chosen window simply click the
“check” button again and the next window will open. Manipulation from here on is the same as everywhere
else for LX remote.

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5 Airspace Management

The airspace used in LX Zeus can be managed by pilot to achieve optimal relation between loading of the
display and readability of the display. Too much information will reduce display readability significantly.

5.1 Basic airspace settings

Those settings are available in SETUP / AIRSPACES. User can select warnings and appearances
regarding to zoom.

5.1.1 Hide airspaces above

The airspace sections which are much higher than actual
glider position are not so important, but if disabled will
reduce information density of the display significant. Use
Hide airspaces above airplane to define altitude margin
that you still need for a safe flight.

5.1.2 Other setups

Hide above QNH altitude lets you choose above which
QNH altitude the airspaces should be hidden.

Horizontal and vertical distance warnings can be set
also in this section. Zeus will warn a user at predefined
distance warning. Default settings are 100m vertically and
2 km horizontally.

Warning timeout at take-off lets you choose how long
after takeoff there won’t be any airspace warnings.

5.1.3 Define appearance of airspaces regarding zoom

After using of Show on zoom function you can define by
which zoom the airspace will become visible on the
display. Two extreme situations are described with always
and never. Factory default settings are always.

5.1.3.1 Warnings

If set disabled () the airspace warnings will not appear
at all, setting checked () will produce airspace warning
information.

Warning box is an indicator of the display, so the pilot is
able to move the box and also to customize colours. This
can be done at SETUP / LAYOUT

Airspace warning information consists of Airspace name,
horizontal and vertical distance and is as default
positioned in the upper section of the display. The nearest
point to enter the airspace becomes visible on the display
As long as the warning isn’t critical the text will be blue.

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The airspaces can be also seen at the subpage in different
colours (yellow and red). You can see vertical profile of
airspace with glide path. Airspace is also seen in a second
subpage, where the page is split to a map and a vertical
profile.

Explanation of airspace warnings

The picture shows that the glider is in the CTR LJUB
airspace. It shows that the glider is horizontally 7.4 km
INSIDE and vertically 308 m BELOW. The warning is
BLUE, because the glider is in fact out of the airspace
(below). If the glider is in an airspace warning will be RED
and will be written horizontally and vertically IN.

5.1.4 Disabling of airspace sections

In flight airspace warning will appear as it is on the picture
on the right. Warning can be easily disabled after a long
press on one of the screen buttons.

User can also disable airspace on the ground after a long
press on SELECT/NEAR button to engage NEAR function
or short press on SELECT and click the screen button
AIRSPACES. Airspaces are sorted by distance. In the
upper dialogue a name of the airspace is shown, horizontal
distance, operating altitude from and to in meters and also
as a Flight level.

By rotating the Zoom button, each airspace can be
selected and shown on a map. By rotating the Volume
button a different zoom will appear. After a press on Zoom
button or press on screen button EDIT, additional options
can be modified such as:

 Airspace type
 Airspace class
 Disable airspace until specified date

A screen button DISABLED ONLY will show only
disabled airspaces, which can be also modified.

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6 GPS signal management

LX Zeus has two inputs for GPS signal which are available
on the back of the unit. Both solutions are realized by 6P
telephone type connectors which are marked as:

 Colibri II
 Flarm

6.1 Colibri II plug

Colibri II plug can be used exclusively to connect Colibri

II units. The plug delivers also power (5V) for Colibri II and
receives its data directly without any data interface. The
communication way is bidirectional. Every unit equipped
with Colibri II comes with suitable connection cable (USB
mini/ 6P telephone).

6.2 Flarm plug

Flarm marked input makes plug and play solution, to
connect any unit that has an IGC standard compatible
connector. The port also delivers 12V.

Following units can be connected with the plug and play
solution:

 Colibri, LX 20 – 2000, VL, LX Flarm RB, LX Flarm

MB, Flarm (Swiss)

Note!

LX Zeus is able to adapt baud rate
to any value between 4800 and
38400 automatically, so baud rate
of GPS source connected to Flarm
input does not matter.

Note!

Colibri II is powered from LX ZEUS.
Also all the declaration and settings
are sent from LX ZEUS to Colibri II,
so user doesn’t need to do any
actions on Colibri II.

A dialogue to edit airspace after a
press on EDIT button

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6.3 GPS signal for navigation

Both GPS input connectors are wired to LX Zeus microcontroller module that prepares an integral GPS
signal for the main computer. So, the computer will be supplied with valid GPS signal as long as one GPS
receiver delivers valid data. A symbol that is positioned in the right upper corner of the display shows GPS
signal status:

 red GPS BAD
 green GPS OK
 white symbol with  means no GPS data present

7 LX Zeus and Colibri II

Colibri II and LX Zeus build a compact system that offers that all commands connected with flight recorder
can be sent from Zeus. LX Zeus is master and Colibri II is slave. This organization philosophy makes it
possible to install Colibri II in a place where the pilot is not able to provide manipulation and also does not
need to see the display. As long as it’s a position which ensures good GPS reception. It is absolutely
necessary to use Colibri II version 1.90 or higher. Colibri II has also an ENL sensor built IN, so each unit
comes with ENL.

7.1 Colibri II power management

Immediately after LX Zeus receives is powered, the Colibri II will automatically switch ON, without any pilot
interaction. After landing Colibri II will remain ON, as long as Zeus will be powered. When Zeus will be
switched off, Colibri II will remain on for a limited time and will switch off after approximately 5 minutes
(some beeps from Colibri II will be heard as a signal, which means that Colibri II will switch off). Colibri II is
charged permanently from Zeus and this ensures that the Colibri II battery will be always full. When for
some reason battery power is lost on Zeus during flight, Colibri II will continue to record the flight for up to
15 more hours.

7.2 Colibri II - Zeus interaction

After connection between Colibri II and LX Zeus is established both units start to communicate using a
special LX protocol where the baud rate is 115 000 baud per second. The connection is established fully
automatic without pilot interaction.

7.2.1 Commands and declaration transfer to Colibri II

After power ON and connection between both units is established following data is sent to Colibri II:

 pilot data: immediately after pilot name selection

during booting (also pilot 2 name in case of a
twin)

 recording interval which is set in Zeus at the

moment

 other data connected with recording (Event…)
 data of actual selected task (the task will

become declared)

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Event command will be sent to Colibri II immediately after EVENT command will be executed on Zeus.
Event command can be used also from a second seat unit.

8 LX Zeus and Flarm

Flarm should be connected to FLARM marked plug of the LX Zeus. Flarm will also receive power via that
plug. If Flarm is also connected to the aircraft power network via its own power input wires, a short break
circuit problem does not occur due to a built in diode. This separates both power supplies. Up to two Flarm
external displays can be connected to the plugs marked as Flarm external display. SD card slot on LX Zeus
front is directly connected to Flarm SD interface (valid for RB), without Zeus interaction.

The SD card may be used for:

 Flarm firmware update (Red box or Mini box)
 Downloading of flights stored in Flarm (Red box or

Mini box)

On the backside of LX Zeus there is enough space to
install LX Red box as an integral part of the system. All
connections are plug and play. Non-integral solutions can
of course also be used.

Original Flarm (Swiss) can be also used. Zeus will show objects from Flarm on its display and will also
provide power for Flarm. Declaration will be also sent from Zeus to Original Flarm. SD card slot cannot be
used for Original Flarms.

8.1 Flarm external displays

LX Zeus HW makes it possible to connect up to two Flarm external displays. Both plugs are controlled from
Flarm directly without any Zeus influence. The Zeus system also provides 3V power for Flarm displays.

Important!

Any change on task, doesn’t matter USER or IMPORTED will immediately update Colibri II task. As

long as on ground, the new data will be written also into declaration of Colibri II flight recorder. The
same will happen with the pilot. After take-off the task update will also work, but the declaration in the
flight recorder will remain unchanged (IGC rule).

GPS signal priority

If there are both units (Colibri II and Flarm) connected to Zeus, Zeus will take a better GPS signal
reception.

Password 46486:

Password 46486 will also delete all flights from Colibri II

NOTE
In case of REDBOX, there must be only 1 SD card inserted at once; either in Zeus SD card reader or
in Redbox unit, but not in both at once

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8.2 Task declaration into Flarm

In case of an IGC approved version of Flarm, which is connected to Zeus Flarm port, an automatic
declaration process is executed. The process is identical as with Colibri II, that means the actual task and
pilot data will be sent also towards Flarm. In general the task which was active (selected) in TSK menu will
be written as declared.

The process will take about 30 seconds. After the process is finished all LED lights will switch off on the
FLARM display and the red POWER light will start blinking. This means that the process of sending task
declaration to FLARM is finished.

8.3 Transferring files from Flarm

Transfer of files from FLARM to Micro SD card is a very easy process. Micro SD card has to be inserted
into Micro SD port, which is found on LX ZEUS front panel (In case of red box flarm, it is also possible to

insert the card directly into the flarm unit). After the flight is finished wait for three minutes, then turn LX

ZEUS OFF and ON again. After switching on, a red POWER LED light on the FLARM display blinking can
be seen, all other LED lights are off. This means that all the flights that were not already on the Micro SD
card are transferring themselves. After the red POWER LED light stops blinking, remove the Micro SD card
and all the flight are there.

If the micro SD card has not been used for a while, FLARM will automatically transfer all flights that are not
already on the Micro SD card, from its internal memory to the micro SD card. If there are a lot of flights to
transfer, the process may take up to 20 minutes! Flarm will always store maximum 20 flights, so, if a 21st
flight is recorded, then the oldest flight will be removed automatically.

8.4 Flarm Red Box / Mini Box update

Flarm Red Box and Mini Box can be updated via SD card or PC by using Flarm Tool software. Read
update procedure at: www.lxnavigation.com – section SUPPORT / MANUALS: LX Flarm update
instructions.

8.5 Flarm PIN OUT

Bellow you can find information about pin out on Flarm connector – it is standard IGC connector.

Declaration warning!

SD card should be inserted into SD slot without any CONFIG (.cfg) file on the card! If .cfg is on the card,
then this file will have priority and the declaration will be wrong. There will be .cfg declaration instead of
Zeus declaration

Important!

Logger settings (recording interval…) will not be sent to Flarm, use SD or Flarm Tool (see:
www.lxnavigation.com – support / manuals: LX Flarm update instructions.

Note!

The micro SD port is an extension of the FLARM system and settings cannot be changed via LX ZEUS!

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9 LX ZEUS and Garrecht

Garrecht units can be simply connected to LX ZEUS without any software requirements. Declaration to
flarm will be sent directly from LX Zeus. Updating Garrecht units is not possible via LX Zeus. Connection
schematics are shown bellow.

9.1 LX ZEUS and Garrecht TRX-1090 ADSB / TRX-2000

9.2 LX ZEUS and Garrrect TRX-1500

A special cable is needed for that connection. This cable can be ordered at LX Navigation under following
code: LX-TRX1500.

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10 Remote Control

LX Zeus can be also operated by remote control stick. The stick is a standard LX Navigation product which
differs from sticks used by LX 7000/7007 series only in labelling. Therefore the upgrade of an existing stick
is very easy. Remote stick should be connected to one 485 plug and no special initialization is necessary.

10.1 Use of Remote Stick

Plus and minus buttons have the same function as rotary
Zoom knob.

Enter () and escape (X) buttons have the same functions
as Zoom press and Volume press.

Zoom IN/OUT:

Use buttons Minus and Plus on the Remote Stick

Select screens (APT, TP, TSK):

Use APT button and press it until you will have the
indication on the top in left corner APT, TP, TSK

Select second page:

Use SUB and you will the first and second subpage of the
screen

Change information at second page between info and
vertical profile:

Use 1-4 button, you can also Zoom In/out with Minus / Plus

Change MC:

 Press MC
 Press Minus / Plus button
 Press X to escape

Select TP, APT:

 Press X button
 Use MINUS to go to Country, Name or Sort by distance filter
 Use Check/confirmation button to select your filter (Example Name filter: press Check, press Plus

to change the character and press confirmation, go down with Plus and select your TP, APT with
Check button)

Select in TP/APT/TSK mode

Press “check” buttonand windows with different functions will open, depending if you are in TP, APT or
TSK mode. One of them will be yellow, which means, that this window is the current chosen one. You can
move to a different window with the + or – zoom buttons. To select the chosen window simply click the
“check” button again and the next window will open. Manipulation from here on is the same as everywhere
else for LX remote.

10.2 Remote in second seat

Remote stick for second seat is the same as for the first seat (no different firmware as by LX 7000/7007).
The unit should be connected to second seat unit to 485 bus.

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11 LX Joy

11.1 General

LX Joy is an ergonomically designed, with leader covered remote stick handle for glider airplanes. It consists
of 5 buttons and navigation switch on the front side, 1 button on the back side, build in electric circuit and
wiring.
The internal diameter of the bore can be 19,1 mm, 20,1 mm or 24,3 mm. It is important to point out the
dimension by ordering.
For more information about installation, hardware… read LX Joy manual on lxnavigaton.com/manuals/

11.2 Button description

NORMAL MODE (LED OFF)

Joystick button:

NOTE!!

In order to LX Zeus work with LX Joy, software version on LX Zeus should be at

least 3.2.2 or higher.

Short press: VARIO
Long Press:
SETUP

Short press: ESC
Long Press: ESC

Short press: PTT
Long Press: PTT

Short press: TSK
Long Press:
MOVE

Press: ENTER

SELECT

1-4

SUBP

APT

Short press: FN
Long Press: /

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ZOOM/VOLUME MODE (LED GREEN)

Joystick button:

Short press: PTT
Long Press: PTT

Short press: FN
Long Press: /

Press: ENTER

ZOOM OUT

VOLUME

ZOOM

VOLUME

Short press: STAT
Long Press: /

Short press:

FLARM

Long Press: /

Short press: ESC
Long Press: /

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PAN MODE (LED RED)

Joystick button:

Short press: ZOOM
IN
Long Press: /

Short press: PTT
Press: GO TO

Move right

Move up

Move left

Short press: FN
Long Press: /

Short press: ZOOM

OUT

Long Press: /

Short press: ESC
Long Press: /

Move down

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12 Second seat unit

Second seat device is connected to the master unit via
CAN bus (not important which one). The connection
also includes power for second seat. This means that
second seat unit does not need an additional power
supply. An external toggle switch makes it possible to
switch off the unit during single pilot operation period.
Otherwise all commands are the same as by main unit.
GPS inputs are inoperative, so there is no sense in
connecting GPS sources to those plugs, the same is true
for Flarm display plugs. All LX Zeus sizes can be also used
as a repeater in case of panel space problems.

12.1 Connection of Vario and Remote

Vario indicator (not USB D unit) should be connected to
485 bus of second seat device (this is not the same as by
LX 7000/7007). The same is valid for remote. Both vario
indicators and remotes are compatible with existing units
connected to LX 7000/7007. Remote doesn’t require any
setup.

12.1.1 Secondary Vario setup

Function of vario indicator connected to second seat unit, should be defined in Setup of second seat unit.
Indicators (upper and lower indicator) on vario second seat can be adjusted from LX Zeus second seat.
Automatic SC switching and external switch mode cannot be adjusted form second seat unit.

12.2 Interaction LX Zeus – LX Zeus Second seat

LX Zeus in the front seat and LX Zeus situated in second seat are two units with identical HW configuration,
but the second seat unit is prepared to play slave role to some extent. The initialization for second seat
should be done during production process in the factory. The units are connected via CAN marked
connectors, which are to be found on the back of both units. In general the second seat unit does more or
less an independent job but receives all navigation and air data from the master. All secondary interfaces
such as a Remote Stick, etc, are to be connected to the second seat unit.

Following parameters are exchanged between both units:

Item

To first seat

To second seat

Automatic

Manual

Sec. pilot name

Y Y

Sec. pilot mass

Y Y

TSK /TP/APT

exchange

Y Y

Y

Team code

Y Y

Y

Logger setting

Y Y

NOTE

Flarm, Colibri II, Voice module, Magnetic Compass
should be connected to the first seat.

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12.2.1 TSK / TP / APT exchange

The TSK / TP / ATP can be exchanged from first to second and vice versa. The pilot, who wants to send
the task / turn point / airport, should press Zoom knob and select screen button SEND TASK / SEND TP /
SEND APT. The other Zeus will receive it immediately. Zeus will send the whole task with its statistics,
moved zones, limitations etc… When a task is sent from second seat to first seat the declaration is also
sent to Colibri II.

12.2.2 Downloading flights from Second seat

Downloading flights is possible only from the First seat unit.

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13 Flying with LX Zeus

It is recommended to prepare the unit for every flight before take-off to ensure a stress-free and joyful flight.
This is especially important before any contest, record or badge flights.

13.1 Flight preparation on ground

It is suggested to check following:

 Data base status
 Prepare task (use new or edit options, or select imported task)

13.1.1 Before take off

 Switch the unit ON at least 3 minutes before take-off (this will ensure sufficient GPS reception and

will create a base line of the baro trace)

 Select correct pilot (many settings belongs to pilot)
 Check task if it is correct after using of Task edit
 The task actual during take-off will be declared in Colibri II and Flarm
 Switch on second seat unit in case of double seated glider

13.1.1.1 Setting of the take-off elevation

LX Zeus requires take off elevation input at initial Setup.
The elevation of the last landing place is offered. If this
doesn‘t match the elevation of actual take off place an
adaptation is necessary. User can also set QNH, select
pilot (profile settings), polar (if 18m glider then probably 2
polars inside) and set ballast.

On second seat unit is possible to select only a flying pilot,
other data has to be selected at the first (main) seat unit

13.1.1.2 QNH setting

The pilot should input actual QNH value of the airport where he will take off. This action should be carried
out on ground, after take off the menu will not open any more. After input of QNH on ground the pilot will
be able to adjust altitude reading during flight, if QNH will change (select vario, flarm button and go to QNH

box and edit the value).

Note!

QNH setting doesn’t replace setting of elevation

during
booting, this should be carried out every time otherwise
the unit will not switch to navigation mode. QNH setting
isn’t obligatory and may be neglected.

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13.1.1.4 Task declaration process

The task declaration process is fully automatic and doesn’t need any pilot interaction. Actual task and pilot
data will be written into both flight recorders immediately after selection. The declaration data will not
change during flight, even if task data will change due to select or edit process (IGC rule). The action is
accompanied by a message on the display.

13.2 During flight

The Zeus HW and SW concept is so far optimized that the

pilot doesn’t spend too much time to operate the unit

during flight. It is important to point out that there are many
short cuts, which enable direct and fast access to most
important functions. The pilot isn’t obliged to terminate edit
process until end due to Auto close feature, which closes
the process after some seconds of no active commands.
A very significant indication that shows that the unit has
changed to flying mode is Log Book replacement with
statistics page after pressing on STAT button.

13.2.1 Set MacCready, Ballast, Bugs and QNH

After short press on VARIO button a new window will
appear – MacCready. The menu will give options, to
adjust MacCready, Ballast, Bugs and QNH. Setting
MacCready, Ballast and Bugs will have affect on the glider
polar: MC speed, sink speed, cruise speed and also the
efficiency will change.

Bugs setting will decrease the efficiency, which will affect
the final glide calculation.

Example:

 efficiency is 30
 bugs setting is 10%

Equation: Fbugs = f x (1-bugs [fraction])
= 30 x (1-0.10) =
= 30 x 0.9 = 27

QNH setting:

The pilot should input actual QNH value of the airport
where he will take off. This action should be carried out on
ground, after take off the menu will not open any more.
After input of QNH on ground the pilot will be able to adjust
altitude reading during flight, if QNH will change.

Declaration

Declaration

Note!

QNH setting doesn’t replace

setting of

elevation

during booting; this should
be carried out every time otherwise the
unit will not switch to navigation mode.

QNH setting isn’t obligatory and may

be neglected.

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Note!

When the task has not been started yet, the statistics
data is limited to take-off and flight duration.

13.2.2 Statistics

The statistics page will open after press on STAT button.
Statistics page offers following statistics data:

 Thermal analysis (1 and 2)
 OLC; calculation of OLC points
 Baro; shows baro trace from take off until present

position

 Task; presents task statistics data divided by legs
 Route; shows Task and distance flown

The statistics page colour structure can be adapted under
pilot personal requirements, after using of; Setup/User

Interface/Statistics colours

End Flight function will close the flight, so don’t use it

during flight. After execution the flight will end and the flight
recorder (Colibri II) will be forced to close the flight.

13.2.2.1 Thermal Analysis

There are two pages of thermals statistics, which are
selectable by pressing the VARIO/FLARM push button:

 Thermals 1
 Thermals 2

Thermals 2

The page shows all thermals of the flight, as a reference
the actual MC setting is shown. The value corresponds to
thermal vario of individual climb. This means from entering
and leaving the thermal. The thermal is shown if you gain
at least 100 m of altitude. The dotted red line through the
columns shows the MC setting. This assists you in
determining a good MC setting.

Thermals 1

Every column means a thermal. The column is sliced into
various colours and widths. The colours are blue, yellow
and red. These colours depend on the current MacCready
setting. If the thermal strength is bellow MC setting, then
the column is blue, if it is above then the colour is red. The
yellow colour is around MC setting (plus / minus 20% of
MC).

Note!

If task consists of more than three legs, use zoom to
select legs of interest.

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13.2.2.2 OLC Calculation

OLC calculation is calculation of OLC points according to
OLC rules. Current rules can be read on
http://www.onlinecontest.org/olc-

2.0/gliding/cms.html?url=rules .
In general the scoring software selects a departure point

within the powerless part of the flight and fixes up to 5 way
points (turn points) and a finish point in such a way that the
following two conditions are fulfilled:

 The raw point score (1 point per km) from the

departure point via all waypoints to the finish point
is a maximum.

 The departure altitude is not more than 1000 m

higher than the finish altitude.
To stimulate „area“ flying, a so-called FAI bonus is
granted. For this purpose, the scoring program checks
whether FAI triangles can be fitted into the flight route and,
if so, determines the largest such triangle for calculating
the FAI bonus.
There are three NAV BOXes showing how many OLC km
were made (so far). One is OLC and means the kilometres
made to current point in flight. The other one is OLC
HOME and means how many kilometres will be made if
the take-off point is reached. The third NAV BOX is OLC
speed, which indicates your speed over the whole OLC
distance flown.

13.2.2.3 Baro trace graph

A baro trace from take off until actual position will open
after press on button next to Baro. Customisation of
colours is possible at SETUP/USER INTERFACE/
STATISCTICS COLORS.

13.2.2.4 Task Statistics

The page will open after press on the button that you will
find close to Task window. The statistics data is shown for
the whole flown task and also for individual legs.

 Speed: average speed
 Dist: distance flown
 Dur: duration
 V Avg: vario average (based on leg resp. on task)
 Circ: percentage of time spent in circling

Statistics can be seen also at the first subpage in TSK mode.

Note!
Use Zoom to scroll through the legs, as the display is
capable to show only 4 legs. An infinite number of legs
can be shown.

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13.2.2.5 Route

Route option is a feature showing the path already flown
and current task, so detours made can be seen.

13.2.3 Special functions

13.2.3.1 Event function

This function is active only if Colibri II is a part of the
system. A long press on EVENT button will send a
command to Colibri II flight recorder to activate so called
event function. This is in fact recording in shorter intervals
as default for a limited time (default: event fix interval: 1s;
event repetitions: 20). The conditions are to be set in
Setup/Logger of Zeus. The action is accompanied with a
clear message.

13.2.3.2 Marker setting

If the pilot wants to mark a position of interest, for example
a suitable outlanding place, thermal hot spot…), this can
easily be done by activating of Marker function. The
process is very fast and doesn’t intensively occupy the
pilot.

To mark a position pilot should do as follows:

 Select screen TP, press Zoom
 Select screen button Add marker.

The marker is visualized as a yellow triangle positioned on
the graphic page. Only one marker can be active at the
same time. To set a new one simple repeat the procedure.

The marker will be stored as user turn point designated as
#MARKER. If the edit function is used #MARKER can be
converted into normal TP. #MARKER can also be deleted
after using the Delete TP command. In case of navigation
data necessity towards #MARKER point, simply select
#MARKER after using of the Select TP command.

NOTE:

Marker function is possible only on TP screen

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13.2.3.3 Pan mode

It enables you to move on the map using volume and zoom
rotary switches. Pan mode is available in all three modes
TP/APT/TSK.

To activate the mode, press button SELECT and choose
screen button pan mode. Now you can move to the desired
location on the map and if you use GO TO command a
new virtual TP will be set in TP mode, and navigation to
TP is active.

To move more efficiently use zoom in or zoom out.
Tail (already flown track) and flarm objects are visible on
map in pan mode.

13.2.4 Task Start

Task start is a quite complex procedure, especially with a
high density of gliders where many of them intend to start
at nearly the same time. As the pilot intends to perform
task start in an instance, a very simple operation should
be carried out:

Press on TSK button and confirm ARM option

A very significant message ARMED will appear on the
display. Armed word will remain on line until first line
crossing. After crossing line, the task will start
automatically without any further pilot interaction.
Task start is accompanied with a very significant message:

If you then cross the start line multiple times, the time of
the last valid start will be used for statistic calculation.
Every next start is also visualised by a green message
TASK STARTED..

Disarm function will disable Arm command.

Note!
ARM command can be
executed at any time,
even on ground.

NOTE:
In case that the pilot forgot to ARM start and has crossed the line, execution of NEXT TP function will
solve the problem. Navigation to first turn point will be offered and the statistic page will become
available.
It will take the last start line crossing time for a valid start. This also ensures correct statistics data.

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13.2.4.1 Start Conditions / Limitations

Some competition rules prescribe some limits
(restrictions), which should be respected before start and
also at line crossing. After short press on TSK/MOVE a
screen button Limitations will appear. Press SUBP to enter
limitation option. Limitations are divided to:

 Gate time
 Before start
 Start conditions

Gate time means the time when the start line will be
opened. Calculated time will be time set in Zeus (UTC or
UTC offset time). Zeus time is default set to the UTC time.
Time can be changed in SETUP/LOCALE/UTC offset.

Below start altitude and time can be set. The glider should
be below selected altitude the time you set.

Start conditions can be limited to start altitude and ground
speed.

Limitation indicator will appear on the screen (only at TSK
screen).

13.2.4.2 Task Restart

After a bad start and intention to perform a new start, the
pilot is able to execute the so called Restart function. After
a press on TSK/MOVE button you will find screen button
RESTART. After pressing restart, the task will be reset
(doesn’t matter on which leg) and a new start can be
performed. Also the task statistics will be reset.

13.2.4.3 Restart Leg

Restart leg is possible during active leg. After press on
TSK/MOVE button you will find screen button RESTART
LEG.

13.2.5 Task Finish

Task finish will be detected after the glider will pass the
finish line. The situation will be accompanied with a very
clear message and also with Task speed.

Note!

After RESTART, the unit will change
immediately into ARM status, which
means ready for next start.

Stop, because the start limit GS speed is too fast.
B =before start, S = start conditions

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13.2.6 Flying AAT (Assigned Area Task)

AAT (Assigned Area Task) is a modern manner of task
flying on competitions. The basic idea is to set relative big
sectors around turn points and this makes it possible that
the pilot decides how deep into the sector he will fly. The
main objective is to gain a highest possible average speed,
while choosing your own route of flight, limited in the given
AAT sectors.

Create an AAT:

 TSK/MOVE; New task or Edit task
 Task time – MUST BE SET!
 Set sector geometry – go to TP, select Zone, edit

R1(10 km and more) and A1 (180)

 Move function: makes possible to adapt AAT

distance and also get informed about important
task parameters as for instance: remaining
distance, required speed….

Move function is also available after long press on
TSK/MOVE push button. Use Zoom and Volume rotary
switches.

Note!

If sector radius is bigger than 10km, the unit will recognize this as an AAT and will set manual change
over to next turn point. Using smaller sectors by AAT requests manual setting of No Auto next.

Note!

If task time will not be set, there
will be a lack of many statistics
data, for instance: task delta
time, task remaining time….

Task time

Auto next X becauseR1 is
more than 9.5 km

Auto next because R1
is less than 9.5 km

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13.2.7 Final glide calculation

The final glide calculation is based on the following inputs:

 Actual MC setting
 Wind
 Polar
 Bugs
 Ballast
 Safety altitude (reserve)

The final glide is indicated in the graphics page. As the
final glide box has the nature of a display indicator it can
be moved over the display and also custom colours can
be assigned. (–) figures mean below and (+) above final
glide, both in meters resp. in ft. The final glide situation is
also present in the first navigation Subpage of all three
navigation modes. In case of flying a task, final glide profile
will be displayed until finish through all TPs.

It is also possible to select final glide with the current MC
setting. This can also be shown as a display indicator or
as NAV BOX.

13.2.8 Finish line crossing

Modern competition rules use longer finish lines and also
finish cylinders. Zeus is always calculating the shortest
way to reach the finish and therefore offers the shortest
distance to reach the finish. In the final glide calculation
the shortest distance is also taken in account.

Note!

Final glide may be
also visualized as
NAV BOX.

Note!

In Task mode the final glide is calculated from actual
position until finish (overall not over flown turn points).

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13.2.9 Thermal assistant

The thermal assistant analyses the thermal while circling.
The size of the dot indicates the strength of the thermal –
bigger dot means stronger lift.
Dots are different colours and depend from MC set.
DOT color:

 Red colour means values above MC,
 blue values below MC,
 yellow dots show lifts plus/minus 20% of MC

setting.

 White dot shows the maximum of the thermal

A symbol of a glider will appear on the right or left side of
the circle. The glider on the right side means, that you are
circling left and the thermal is on your left side.

In Setup/Layout the size and position of a thermal
assistant can be customized (see picture beside). Default
position is left corner bellow IAS.

13.2.10 Flarm management

Unit will show Flarm objects if a Flarm is connected. There
are two screens that are able to display Flarm objects.
Objects will be seen on MAP as a glider icons and at Flarm
radar, which can be opened after long press on
VARIO/FLARM push button. Number of shown objects is
infinite.

Objects on the map will appear automatically with data
about object’s current vario and altitude difference.

At the Flarm radar page, objects can be customized (Call
signs and colour). Three objects can be selected at once,
but there will be infinite objects on the radar. Zoom can be
also adjusted at radar.

Procedure:

 Long press on VARIO/FLARM will open a Flarm

radar.

 Rotate Volume to adjust Zoom on Flarm Radar
 Rotating Zoom knob will move an orange frame to

select/store 3 objects on the bottom in a box

 Press Zoom to select the object in a range
 Long press on Zoom will open a dialogue with

more details about selected object. Rotate zoom
to select the details you want to see or modify

 Press Volume to Escape from dialogues

NOTE:
If the indicator shows mostly red colours, then we
should increase MC, if colours are blue, then the MC
should be decreased..

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13.2.11 Artificial horizon – AHRS

Artificial horizon (AHRS) is offered as an integral part of
the system, no external boxes necessary.
AHRS is not possible for Zeus 4.3.

You can view AHRS by pressing subpage or you can put
AHRS as an indicator on the main TP/APT/TSK page.

Artificial horizon as a box is also possible. Simply connect
it with CAN cable to first seat unit (Plug and Play).

Pressure connection:

 Pst – connect static pressure
 Ptot – connect dynamic pressure

Important!

Orientation of AHRS box is very important. It has to be
installed as it is shown on the label of box unit (little
black glider icon)

Red glider is selected, zoom can be
adjusted

Edit dialogue will open after a long
press on the selected flarm object.

Flarm details can be seen if a
FlarmNet file is installed in Zeus

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13.3 After landing

It is recommended to keep the instrument ON for a few
minutes after landing; this will ensure base line of baro
trace.

There will be a small window, which will show: Flight will
end in _ _ time left till logger will stop recording). After the
flight will end simply wait until a very significant message

on the display will appear (calculating security). It shows
that flight recorder is terminating the flight and data
security operation of flight recorder is in progress. After
calculation of security, statistics page will be replaced with
Log book and the unit is now ready to be switched OFF,
or flight download process can start.

13.3.1 Downloading of flights

LX Zeus can fully interact with Colibri II in case that Colibri is used as a flight recorder. This means that
downloading Colibri II flights is possible directly from LX Zeus.

The stored flights can be transferred to a USB stick.

If there is no connection between Zeus and Colibri II, the unit (Zeus) will offer its own “flights”, which are not
IGC approved.

The flight file structure meets IGC standard and therefore such flights can be evaluated by any program
that accepts .IGC data format.

In case of Flarm (RB IGC version) connected to LX Zeus, its flights will be stored to Flarm SD card, without
any Zeus interaction. The procedure is automatic, and the new flight will be stored after next power on.

Note!

Downloading flights from second seat is not possible – only from 1st seat.

Downloading of

Colibri II flights

and also Zeus

Downloading of

Flarm flights

Do not connect PC
or PDA to USB

NOTE:
In case of Red box flarm, it is possible to download flights only if there is 1 SD card
inserted, either directly into RB or into the SD card slot in the front panel of Zeus.

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13.3.1.1 Downloading Colibri II flights

After finishing of the security calculation process,
downloading of flights can begin. Downloading of flights
stored in Colibri II is possible exclusively by using of a
USB stick.

The procedure:

 Insert USB stick
 Press STAT button (log book will open)
 Select flight of interest
 Execute Save to USB command

The process will take a couple of seconds or minutes a
significant message will show termination.

The flight is now available on USB stick in LX folder Flights. Flight data is stored in .IGC format and
therefore immediately ready for evaluation. The data security level meets the IGC high level approval
standard.

13.3.1.2 Downloading of flights recorded by Zeus

LX Zeus is also storing flights in its internal flight recorder
memory. The flights become available and also
downloading will be possible if Colibri II is not connected
to the system. In that case the flights in the logbook will be

designated with a . The procedure is the same as
described in 10.3.1.1, the only difference is, that such
flights don’t have valid digital signature (not valid as IGC
flights, but can still be used for OLC scoring).

13.3.1.3 Downloading flights stored in Flarm

If an IGC approved Flarm Red Box unit is connected to LX Zeus, it’s possible to directly download a flight
via the SD card slot, which is positioned on the front panel of LX Zeus. The SD card slot is wired directly to
Flarm Red Box SD card reader without any Zeus interaction. General rule by Flarm is, that flight will be
stored to SD card after next power on. So, power LX Zeus off and on to download the latest flight. It is
suggested to keep an SD card all the time in Zeus SD slot, to avoid long waiting times by downloading of
many flights that are not on the SD card yet.

If the card is empty, than the first power ON will download ALL FLIGHTS stored in the Flarm and this will
take a long time. It will download the last 20 flights stored in Flarm. Flarm will always store maximum 20
flights, so, if you will make 21st flight, than the oldest flight will be removed automatically.

13.3.1.4 Colibri II – Zeus interaction after landing

After landing is detected, Zeus will wait for 2 minutes and
if during this period no movement will be detected the
procedure to close the flight will start. After the time out (2
minutes) the unit is ready for the download of flights stored
in Colibri II.

Note!

In case of troubles (error messages USB not

detected…..), switch Zeus OFF, remove USB

stick, switch Zeus new ON and try again

Recommended!

Keep Zeus on until above-mentioned process is

finished.

Note!

Separate switching off of Colibri II isn’t

necessary.

 shows

Colibri II
flight

Password 46486!

This password will delete all flights
stored in Colibri II and also all pilot

history in ZEUS!

 shows Zeus flight

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After Zeus will be powered OFF, Colibri II will remain ON for a limited time (approximately 5 minutes) and
will then switch off automatically. This will not happen if Colibri is in flight mode while running on the internal
battery.

13.3.2 Recommendations for safe operation

 Connect Colibri II to Zeus before Zeus is powered on
 Never switch Colibri II OFF by hand if connected to Zeus*
 Leave Zeus ON until flight in Colibri II will finish (2 minutes after landing)
 Keep Flarm SD card inserted, so that only the last flight should be copied

*In case you have switched Colibri II off by hand, turning ON by pressing of Colibri II push button will not
work. You should power OFF and ON ZEUS. Colibri will switch on automatically as the power from Zeus
will be applied.

13.4 ICAO charts

LX Zeus offers use of ICAO charts from Rogersdata and Deutsche Flugsicherung. Charts can be ordered
via [e-mail]. Please read Data transfer (section 2.2.4) for installation process. The
charts will be shown by rotating Zoom knob to the left. There are 3 zoom steps available for ICAO charts.

Zoom steps from left to right:

 Task zoom (vector maps)
 Icao zoom 1
 Icao zoom 2
 Icao zoom 3
 Map zoom 1:2500000
 Map zoom 1:2000000
 Map zoom 1:1000000
 Map zoom 1:500000
 Map zoom 1:250000
 Map zoom 1:125000
 Map zoom 1:62500
 Map zoom 1:30000
 Map zoom 1:15000

Note!

End of the chart will be shown as white background on the screen.

If the glider will be located out of the chart, than the ICAO chart won’t appear – vector maps will

replace it.

NOTE:

Zeus losing power in flight will not result in Colibri switching off

Deutsche Flugsicherung

Rogers data

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14 Installation

14.1 Mechanical installation

As the larger unit dimensions does not match air norm standard, a new cut out in the panel should be made.
There are two ways how to prepare the panel.

The first option is to buy a new panel from the manufacturer, and the second solution is to upgrade your
existing panel. A panel upgrade can also be done by user; in that case some experience in fiber glass
technology will help. Instructions how to rebuild the panel can be obtained from LX Navigation.

Every unit comes with an iron template which makes it possible to manufacture LX Zeus cut out by hand.
In case of a CNC solution, please ask for .dwg file.

Reinstallation after panel upgrade

14.1.1 Installation of Vario unit

The unit occupies one 57 mm standard cut out. The maximal dimensions of the unit are 60x60 mm and

don’t exceed dimensions of classic pneumatic instruments. In case of space problems, the unit can be

separated into two parts, which are connected via a cable.

14.2 Screen rotation

Software rotation can be easily done in SETUP / SERVICE menu, when a password 9109 is entered.
Buttons must be rotated by hand. Follow procedure below:

1. Open the unit (remove all screws and a cover)

2. Move rounded rubber to the middle

3. Take out the button and rotate it to the proper position

4. Put button back on blue button (be careful that blue button is inside of the black hose)

5. Put rounded rubber back to the first position (be careful on side with Rotary knobs rubber must
not be fully pushed to the end)

Note!

Respect labels near pneumatic connectors, during pneumatic tube connection process.

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14.3 Electrical installation

This part of installation is easy and doesn’t need any specialists. The system receives its power via two

power lines, which should be connected to 12V glider power source and ground. Red wire is 12V and blue
wire is Ground.

A 2-pole plastic power connector, which is positioned approximately 20 cm from the unit casing ensures
simple disassembling of the unit in case of repair.

14.3.1 Installation of USB D 60 (Vario unit)

The USB D 60 unit comes with prefabricated cable set, which has two connectors. The 15-pole type should
be inserted into the vario unit and should be secured with the appropriate spring locks. The 9P connector
should be inserted into any free 485-marked plug on Zeus back. The unit also receives its power from Zeus.
Speaker output is terminated with one chinch female connector; a male connector is part of the speaker.

CAN terminator can be inserted either into the left or right CAN PORT = Not important.
9P (485 system bus) can be connected also to any free 485-connector plug.

Important!

There is no fuse built in the system, obligatory use 3A external fuse. Never remove the CAN BUS
Terminator, which occupies one CAN port (factory pre-set). Terminator should only be removed in case

of second seat configuration. In that case the terminator should be positioned on second seat unit.

At this side the rounded rubber is touching the

back plate of display, do not push it too tight

At this side the rounded rubber is

pressed fully to the plate.

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14.3.1.1 USB-D 60 wiring

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14.4 Installation of second seat units

The second seat unit shares the same logic as the master, so no difference with mechanical installation
works.

14.4.1 Electrical installation

The second seat unit doesn’t need external power, as it is powered via the system bus (CAN). For CAN
connection two 8P connectors are provided on master and also on repeater. The interconnection of both
units is extremely simple and easy, all what is necessary is to insert CAN marked cable in one of two CAN
marked plugs. The same is valid for first and for second seat. Second seat unit comes with two red wires,
which are terminated with a toggle switch. It is recommended to install the switch somewhere in the rear
panel, as this will make possible to switch off second seat unit during single pilot operation.

Note!

Never remove CAN

terminator which occupies

one CAN plug of the

second seat unit.

ON/OFF

Note!

Interfaces which interact with the second seat, should also be connected to second seat 485
bus:

 Remote control
 Vario indicators

Compass module, Voice module should be connected only to first seat and of course they will
also work on the second seat!

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15 Explanation of terms

Text explanations of NAV BOXes

Item

Description

NAV BOX

designator

Above ground level

Altitude above ground level

AGL

Air temperature

OAT

Temp

Altitude IGC

Altitude recorded by flight recorder (1013 based)

Alt IGC

Altitude GPS

Altitude recorded by GPS

GPS Alt

Altitude QFE

QFE altitude based on approaching point

Alt QFE

Altitude QNH

Altitude over sea level

Alt QNH

Altitude QNH (ft)

Altitude over sea level in ft

Alt QNH

Analogue clock

Analogue clock symbol

Clock symbol

Arrival altitude

AGL height (+reserve) on arrival at selected TP

Arri Alt

Average vario

Integrator (average of last x seconds – set in SETUP /
VARIO SC / Integration scale)

V Avg

Average netto vario

Average of air mass vertical movement during the
whole flight

AVG netto

Battery

Battery symbol

Battery symbol

Bearing TP/APT/T

Bearing to TP/APT or TP of task

BRG

Circling radius

The radius of circling in a thermal

Circ Rad

Compass heading

Heading that is calculated from compass (if compass
module is installed)

HDG

Cur. eff. TP/APT/TSK

Efficiency calculated during last time period

E

Compass Heading

HDG

Digital clock

Digital clock symbol

Time

Distance in NM to sel.
TP/APT

Distance to TP/APT in NM

Dist NM

Dist. to sel. TP/APT

Distance to TP/APT

Dist

Empty

NAV BOX will remain empty

No designator

ETA (average speed)

ETA based on average sped reached

ETA Avg

ETA (current speed)….

Estimate time of arrival based on actual speed

ETA Sp

ETA MacCready speed

ETA based on MC setting

ETA MC

Final glide

Altitude difference regarding to f.g. line

FG

Final glide (MC 0.0)

Altitude difference regarding to f.g. line at MC 0.0

FG(MC 0.0)

Flight level

Actual flight level indication

FL

Flying time

Time spent in the air

Flying

GPS position

Indication of coordinates

Coordinates

GPS signal

GPS status symbol

GPS Symbol

Ground speed

Speed over ground

GS

Horizontal distance from
airspace

Glider position horizontally from the airspace

AS hor

Indicated Air Speed

Airspeed not altitude corrected

IAS

Leg speed

Leg speed on task

Leg speed

Netto vario

Shows air mass vertical movement

V Netto

OLC

OlC point scored to current location

OLC

OLC home

OlC points that will be scored if takeoff position is
reached.

OLC Home

OLC speed

Speed when flying a cross country flight under the rules
of OLC

OLC sp

Off course distance

Off course indicator

Off co

Radial TP/APT

Radial from TP/APT to the glider position

QDR

Recommended flaps
position

Recommended flaps at pre-set speed range

Flaps

Relative vario

Netto vario – 0.7

V relative

ETE – estimated time
enroute

Remaining time to selected TP/APT or until end of TSK

ETE

Required eff.
TP/APT…..

Required efficiency to reach TP/APT/TSK

Req E

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Required speed

Required speed to finish AAT in time

Req Sp

Set MacCready

Actual MC setting

MC

Sink Speed

Estimated sink rate (polar, speed, bugs, MC)

Sink Sp

Task delta time

Early or late arrival on AAT

TDT

Task remaining distance

Distance to go until finish

Task RD

Task speed

Speed achieved on task

Task Sp

Team Bearing

Bearing to your team partner

Team BRG

Team Code

Coded location of your team partner

Team code

Team Distance

Distance to your team partner

Team Dist

Thermal all

Altitude gain during whole flight

Th All

Thermal average

Average climbing during last whole thermal (usable for
MC setting)

Th Avg

Thermal gain

Altitude gained during last climb

Th Gain

Thermal last 30

Altitude gain during last 30 seconds of climbing

Th L30

Time on leg

Time spent on leg

On Leg

Time on task

Time spent on task

On Task

Time to go

Time until the end of TSK

TTG

Track TP/APT/TSK

Ground track to TP/APT or TP of task

TRK

True Air Speed

Airspeed corrected with altitude

TAS

Vario

Momentary variometer value

Vario

Vertical distance from
airspace

Glider position vertically from the airspace

AS ver

Wind direction

Wind direction calculated by Zeus

Wind Dir

Wind speed

Wind speed calculated by Zeus

Wind Sp

16 Zeus Mobile

The unit is very similar to Zeus 4.3. Zeus Mobile is meant to be installed on the panel with a gooseneck –
no panel upgrade is needed. It can also be installed as an integral part of the panel.

Zeus Mobile can be used for single seaters only. There is no double seater option.
Vario unit as a black box solution (doesn’t occupy any space of the instrument panel), Zeus has the vario

indicator as a part of the graphic page (custom design possible), but it can also be additionally ordered in
either 57 mm or 80 mm vario indicator option.

Zeus Mobile also has two GPS inputs (Colibri II and NMEA).
At LX Junction box following units can be connected:

 LX Remote Stick
 GPS (Flarm, Colibri, Volkslogger, LX GPS mouse…)
 USB-D unit (vario black box)

Connection scheme:

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17 FAQ (frequently asked questions)

1. Can I connect Swiss Flarm and how will it work?

Flarm can be connected to LX Zeus NMEA (flarm) port. Zeus will see flarm objects and will send
declaration to flarm (task and pilot’s settings)

2. Volkslogger, Colibri and other loggers - how to connect and what is the advantage?

Loggers can be connected to NMEA (flarm) port. Zeus will take GPS signal from them and give
them 12 V power.

3. What do I get if I buy LX ZEUS IGC FLARM

Zeus comes together with Vario, Speaker, Oat sensor, Colibri II, FLARM (not IGC) and Flarm LED
display, USB key and SD card. You have also an option to take FLARM IGC.

4. Zeus shows Voltage .0.0 V?

Voltage is measured on Vario unit, so this means that there is a problem with connection ZEUS –
Vario. Check connection – cable and both units.

5. Voltage – what is the operating Voltage?

LX Zeus operates from approximately 8 V to 16 V.

6. ADSB and Powerflarm on Zeus – how to connect, what kind of warnings, warnings with
Voice modules?

ADSB can be simply connected to LX ZEUS on FLARM port. Zeus will provide all Flarm warnings
– same as Flarm Red Box or Mini Box.

7. OUDIE – is it possible to connect, what cable, where to connect?
Only with a special cable in case that flarm unit is connected to LX Zeus.

8. AIRSPACE Warnings and a Voice module?

The voice module will also give voice-warnings for airspaces.

9. ENL and Zeus?

If an IGC Zeus is ordered, then the ENL sensor is the part of the system for FREE (built in Colibri
II)

10. AHRS – is it adjustable so that it can be set on the ground?
Yes, of course. For explanation of the procedure, check the relevant chapter in this manual.

11. CONDOR simulator – can you connect Zeus and play with it?

Not possible by default (must be specified when ordered). There will be only GPS data, no baro
data.

12. Can I use OAT sensor from LX 7007, LX 7007 C and LX 5000?
It is not possible.

13. Can I use remote from LX 5000, LX 7007 / C?

The Remote Stick can be used from LX5000 (not valid for keyboard), 7000, 7007 and 7007 C. Only
the button-descriptions have changed with the new Zeus functions. A rubber can be changed to
modify the buttons. This can be done by the user.

14. Why does LX Zeus restart when I switch from battery 1 to battery 2?

You are probably using the wrong switch. You must not use a switch, which cuts off power for a
short period when you change from battery 1 to battery 2. You should use a switch that always lets
the current through to Zeus.

15. How to do a system reset (completely delete the software and install in again)

 Push on zoom rotary switch,
 Go to setup,
 Go to Admin password
 Enter password: 49046 and push on zoom rotary switch (this will dele the software)
 To install the software do as is instructed in chapter 3 Update procedure.

16. I am having problems with the communication between the primary Unit and the secondary
Unit on my double seater, what can I do?

First check if the Zeus unites are connected. This is done by a long press on Setup/info button. In
the Info window, there should be a sign either primary unit or secondary unit.

If there is no sign do a system reset on the secondary unit as is explained on the previous answer.
When the installation of the software is done, a message will appear, asking you if this is the primary
or secondary unit. Select secondary unit.