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.