Navico SIMRAD AI50 User Manual

MANUAL

SIMRAD AI50
Class B Transceiver

988-0168-003 Iss.3.0
English

2 Contents

The technical data, information and illustrations contained in this publication were to the best of
our knowledge correct at the time of going to print. We reserve the right to change specifi cations,
equipment, installation and maintenance instructions without notice as part of our policy of
continuous development and improvement.

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any
form, electronic or otherwise, without prior permission from Navico UK Ltd.
No liability can be accepted for any inaccuracies or omissions in the publication, although every
care has been taken to make it as complete and accurate as possible.

© 2007 Navico UK Ltd

988-0168-003 Iss.3.0 Sep 07 WP

Contents 3

Contents

1 Introduction 9

1.1 General overview 9

1.2 About this manual 10

1.3 SimNet/NMEA2000 10

1.4 WR20 Remote (not supplied) 10

2 Installation 13

2.1 General 13

2.2 Panel mounting 13

2.3 Bracket mounting 14

2.4 GPS antenna 14

2.5 VHF antenna 16

2.6 Power/data cable 18

2.7 SimNet cable 18

2.8 SD card (not supplied) 19

3 Keypad Overview 21

3.1 Layout 21

3.2 PWR/Lights key (powering on/off) 22

3.3 Navigation keys 22

Display mode 22

Menu mode 22

Data entry mode 23

3.4 Zoom keys 23

3.5 ENTER/MENU 23

3.6 INFO/STATUS 23

3.7 TRACK/CLR TRK 23

4 Contents

3.8 HOME/DSC 24

3.9 VIEW/DISPLAY 24

3.10 PWR/

(backlight adjustment) 24

4 Menu Navigation 25

4.1 General operation 25

4.2 Navigation keys 25

4.3 Data entry mode 25

4.4 ENTER/MENU 25

5 Initial Confi guration 27

5.1 Window display convention 27

5.2 Initial start up sequence 28

5.3 Ship confi guration procedure 29

MMSI Entry 30

Vessel type entry 32

Vessel dimensions & GPS reference 32

Call sign entry 34

Vessel name entry 34

6 Menu Mode 35

6.1 General 35

6.2 Display mode settings 35

Coastline detail 35

Tracking offset 36

Display offset 36

Show range rings 37

6.3 Display settings 37

Display brightness 38

Contents 5

Keypad brightness 38

Keypad color 38

Display palette 38

6.4 Favorites List 39

Adding an entry 39

Edit entry 41

Delete entry 41

6.5 Alarm setup 41

Collision alarms 42

Lost vessel alarms 45

Favorites alarm 46

6.6 System setup 46

Units of measure 46

Set local time 47

Ship confi guration 48

Key beeps 48

Set language 48

Data logging 49

Transmit enable 51

Reset options 51

6.7 SimNet/NMEA2000 52

Data sources 52

Network management 53

Network list 54

Remote enable 54

DSC Radio select 54

6.8 Product info 55

6 Contents

7 AIS Map Mode 57

7.1 General 57

7.2 Vessel icon detail 57

7.3 Range rings/info 58

7.4 Point of view 59

7.5 Coast line detail 59

7.6 Cursor 60

7.7 Transmit legend 60

7.8 Vessel information 60

Own vessel 61

Other vessel’s info (reduced list) 61

Other vessel (full list) 62

Other vessel (minimal list) 62

7.9 Features for vessel information 63

7.10 Making a DSC call (map mode) 63

7.11 Text mode 64

Changing the sort order 65

7.12 Making a DSC call (text mode) 65

7.13 Tracking individual vessels 65

7.14 Tracking your own vessel 66

7.15 Clearing down all trails 66

7.16 Light adjustment (short cut) 67

7.17 KeyLock function 67

Contents 7

8 Alarms 69

8.1 General 69

8.2 Collision avoidance alarms 70

CPA/TCPA alarm 70

Lost vessel alarm (1) 72

Guard zone alarm 72

8.3 BIIT alarm 73

8.4 Lost vessel alarm (2) 73

8.5 Favorites alarm 74

8.6 Loss of compass heading data 74

8.7 Safety message alarm 75

9 Appendix 77

9.1 Maintenance 77

9.2 Troubleshooting 77

9.3 Accessories 78

9.4 Product specifi cations 78

9.5 Dimensions 80

9.6 Service and warranty 80

9.7 Declaration of Conformity (EU) 81

10 Index 83

8 Contents

Blank page

Introduction 9

1 Introduction

1.1 General overview

The AI50 is a collision warning device that has been
designed for maximum safety. It is housed in a rugged
waterproof enclosure to withstand the rigors of the
marine environment and it has a bright, crystal clear,
color display for easy viewing.

Figure 1.1 - AI50 Class B Transceiver

It displays the position of other AIS transmitting vessels
within VHF range and allows other vessels and shore based
stations to see you - even at night or in poor visibility.

With safety in mind it is very easy to initiate calls to target
vessels via a networked DSC VHF Radio.

The AI50 can be flush mounted or bracket mounted and
be located at any convenient position such as the helm
pod or at the navigation table.

The AI50 uses a sophisticated automatic digital time sharing
technology which enable the exchange of static information
like; MMSI (Maritime Mobile Service Identifier) Number,
Vessel’s Name, Call Sign and Type. Also dynamic data like;
Position, Course, Distance and more, from ship to ship,
and from ship to shore based traffic stations.

10 Introduction

The advantages of the AI50 are:

Increased awareness of the current shipping
situation within your VHF range through the
exchange of data between vessels.

Improving traffic management in busy shipping
lanes through exchanging information between
vessels and shore based traffic stations.

Reporting information automatically in shipping
areas where it is mandatory.

As with all electronic navigational equipment, it is
only an aid to navigation and should not be used as
a substitute for good seamanship.

Remember - Maritime law requires that you keep a
good lookout at all times.

The position of a vessel on the screen is the
position of the most recent transmission and may
not be the current position.

1.2 About this manual

The manual combines operating and installation
information for the AI50. Operation is sub-divided into
main working categories for easy reference.

1.3 SimNet/NMEA2000

SimNet is Simrad’s proprietary high speed data bus
network complete with NMEA2000. It provides intelligent
sharing of data and control information between a wide
range of marine electronics and instruments.

1.4 WR20 Remote (not supplied)

The WR20 Remote Commander is a handheld wireless
command centre, which enables you to remotely control
your AI50, as well as all of your other SimNet electronics,
such as Plotters/Radar, Autopilots and Instruments. It will
also control the VHF with the advanced features of voice

•

•

•

Introduction 11

calls, and when paired to a mobile phone it offers the
same operating features as a Bluetooth Handset.

The WR20 Handset has been designed to survive the
rigours of the marine environment. It has a tough, sealed
body that is fully waterproof and houses an integral Li­Ion rechargeable battery that is automatically charged
whenever it is placed in its cradle.

For further information on the WR20 and other Simrad
Products, visit our web site at www.simradyachting.com.

))

12 Introduction

Blank page

Installation 13

2 Installation

2.1 General

The AI50 can be fl ush mounted or bracket mounted,
however, to determine the best possible location for good
navigation, you need to consider these few options:

For ease of use - keep it within easy reach
For good screen visibility - keep away from direct
sunlight if possible
Ensure good ventilation
Decide how and where, you are going to run the
cabling from the rear of the unit.

The AI50 is very simple to install, however, the
performance of the equipment is directly affected by the
quality of the installation. Please read these instructions
carefully before attempting installation. If in any doubt,
consult a qualifi ed marine electronics engineer.

2.2 Panel mounting

The transceiver requires a flat surface with an area of at
least 172mm x 115mm (6.8in x 4.5in) for mounting.

Figure. 2.1 – Panel Cut-out drawing

•

•

•

•

14 Installation

Allow sufficient space behind the unit for cable entry – at
least 50mm (2.0in), in addition to the depth of the unit, is
recommended.

The surface should be rigid and sturdy enough to be able
to support the weight of the unit, taking into account the
shock loads likely to be encountered when the vessel is
under way in heavy seas.

Remove the backing paper and stick the cutting
template onto your console or panel where the unit
is to be mounted.
Drill a 2.5mm hole in each corner, where shown, to
fasten the unit.
Drill 8 x 6mm holes where shown to assist in
cutting the case peripheral hole.
Carefully cut the hole where shown on the
template.
Remove the template.
Assemble case gasket to the rear of the AI50 unit.
Place the AI50 unit in the cut-out and fasten with 4
self tapping screws into 2.5mm holes.
Carefully remove 4 corners, (3 left and 3 right
supplied), from the moulding rosette. (Note: they
are numbered 1 and 2 on rear)
Place the 4 snap fi t, removable corner covers into
place. (No.1 is placed in the bottom left and top
right position, No. 2 is placed in the top left and
bottom right position.

2.3 Bracket mounting

Using the supplied bracket as a template, hold it against
the surface it is going to be mounted on. With a marker
pen, make a mark through the centre of the holes and
drill a 3.5mm pilot hole on each mark. Secure to the
surface with the supplied self tapping screws.

2.4 GPS antenna

The antenna, ideally needs to be mounted as low
as possible with a clear view of the sky to minimise

1

2

3

4

5
6
7

8

9

Installation 15

errors due to movement over and above the transitory
movement of the vessel.

The GPS antenna is capable of being flush mounted on
a suitable flat area of the cabin roof or deck area. In
this configuration, fit the supplied rubber gasket under
the antenna and use the four threaded studs, nuts and
washers to fix the antenna down.

The cable can be routed in the molding to drop down
directly underneath, or by breaking out the thin traps, the
cable can be routed out of the side of the antenna.

Alternatively, the antenna may be fixed on a standard 1”
threaded mounting pole (Not supplied). Attach the supplied
mounting base to the antenna with the four screws, thread
the cable down the center hole and through the pole.
Thread the pole into the mounting base, before attaching
the pole to the superstructure.

DO NOT connect your antenna using further extension
cables, or remove the connector, as this may degrade the
reception to a point where it may not function correctly.

To minimize interference, place the antenna in a position
away from steel constructions, wires, metal masts, sources
of electrical interference, such as radar etc. If installing
the GPS antenna close to other antennas, mount it either
above or below their radiation beams.

The antenna cable is terminated in a push fit connector
(SMB). Push the antenna plug firmly into the socket on the
back of the AI50.

The following drawing is a guide to the connections on the
rear of the unit. Figure 2.2.

))

))

16 Installation

Figure. 2.2 - Rear view connections

2.5 VHF antenna

North American Users - To meet FCC (Federal
Communications Commission) rules on Radio Frequency
Exposure, it is recommended that the VHF antenna
is mounted at least 3m (10ft) away from any area
accessible to any personnel on board. If this distance is
achieved by vertical separation, the antenna must be at
least 5m (16.5ft) above deck. This guideline applies only
to antennas not exceeding 3dBi gain.

Failure to observe these recommendations may
expose those within the MPE (Maximum Permitted
Exposure) radius of 1m (3ft) to RF absorption levels
that exceed the FCC safe limits.

The most important factor in the performance of any
AIS transceiver will be the quality and positioning of the
antenna.

As the range of VHF signals are governed by line of sight,
the antenna should be placed as high as possible, while
remaining clear of any metallic objects.

Long whip antennae are generally recommended for
larger boats, although the most popular antennae for
marine use is 1m (3ft 3in) long. On sailboats these are

))

Installation 17

usually mounted on the masthead, where the length of
the antenna keeps it clear from the navigation lights and
wind vanes. This type of antenna can also be mounted on
the cockpit roof or powerboat garages.

For maximum range, it is recommended that a VHF
antenna specifically tuned for use with an AIS is used,
and mounted away from the standard VHF antenna.
Vertical separation is preferred, but where this is
not practical, at least 5 metre horizontal spacing is
recommended

The antenna coaxial cable and any connectors used
must be rated at 50Ω. Under no circumstances
should standard domestic TV cable and connectors
be used. Incorrectly rated cabling and connectors
could result in power not reaching the antenna, but
also power could be refl ected back into the AI50
unit, reducing its performance.

The quality of any connections and integrity of the
cable will directly affect the performance of the radio.
Poor soldering or corrosion of the terminals can impair
performance. We recommend that screw or crimp
terminal type connectors are not used for any through
deck fittings - a good quality waterproof solder terminal
connector will be less susceptible to poor connection due
to corrosion of the contacts.

To ensure the best performance of the radio, the antenna
cable should be routed where it is least likely to interfere
with, or receive interference from other electronic
equipment, such as echo sounder transducer cables and
high current carrying cables.

The antenna cable should terminate in a standard marine
PL259 plug fitting. Connect the antenna plug to the
socket on the back of the AI50 and screw the retaining
collar down. Figure 2.3.

18 Installation

Figure 2.3 - VHF Antenna connection

To avoid possible water damage to the transceiver, it is
recommended that all cables are looped to provide a drip
path.

2.6 Power/data cable

Power cable

The electrical installation is quite straightforward - push
the connector end of the supplied Power/Data cable fi rmly
into the socket on the rear of the unit. The Power cable
has two wires, one red and one black. Connect the red
cable to +12V via a 2 Amp fuse, and the black cable to 0V.

Data cable

The data cable is used for connectivity to AIS enabled
chart plotters with NMEA0183-HS interface. The Data
cable is screened and has four wires. For connection data
refer to the following table.

Signal Color Comment

Out +ve Orange

Out -ve Blue

In +ve Yellow Not Used

In -ve Green Not Used

Figure 2.4 - NMEA0183-HS connections

(NMEA0183-HS is specifi ed at 38.4kbaud and is not
compatible with conventional NMEA0183, which operates
at the lower speed of4800baud)

))

))

Installation 19

2.7 SimNet cable

The AI50 is connected to the SimNet databus using the
cable supplied. Ensure that the connector on the end of
the cable is in the correct orientation and press firmly
into either of the two sockets on the rear of the unit.
Figure.2.2.

The spare socket can be used to daisy chain SimNet to
another item of equipment. If the spare socket is not
used insert the supplied blanking plug.

2.8 SD card (not supplied)

The SD card slot is situated on the reverse of the unit
under a water resistant cover.

Figure. 2.5 - SD Card Access Cover

DO NOT insert or remove the SD card while the AI50 is
turned on.

Locate and undo the two retaining screws, and carefully
remove the cover to reveal the SD card slot.

With the SD card, contact side down, place under the
shroud and slide fi rmly into place, making sure the card is
sitting squarely and not at an angle.

))

20 Installation

Replace the cover and screw back into place, making sure
not to over tighten the screws.

The use of high speed SD cards is not recommended. Use
only Class 1 SD cards.

))

Keypad Overview 21

3 Keypad Overview

3.1 Layout

Figure 3.1 - AI50 Automatic Identification System

Keypad functions

8-Way NavPad
ENTER/MENU
INFO/STATUS
HOME/DSC
PWR/

(Lights)
VIEW/DISPLAY
TRACK/CLR TRK

+

Zoom Out
Zoom In

To obtain the functions printed on the keys in white text,
requires a single push of that key. To obtain the functions
printed on the keys in red text, requires you to press and
hold that key for a couple of seconds.

1
2
3
4
5
6
7
8
9

))

1

76

5

4

8

9

3

2

22 Keypad Overview

3.2 PWR/Lights key (powering on/off)

To turn on the AI50, press and hold the PWR/ key for
approximately 0.25 seconds.

When turning your AI50 on for the fi rst time, you will be
directed to confi gure it for full use. If this is declined the
AI50 will only function as a receiver until fully confi gured.
(Refer to chapter 5).

Press and holding the PWR/

key, will power the unit

down. A brief message will appear until the unit turns off.

Figure 3.2 - Power down message

3.3 Navigation keys

The circular 8-way NavPad, (Figure 3.1 Item 1) can
operate in a variety of ways depending on which mode
the unit is in.

Display mode

The NavPad keys are used to position the cursor around
the screen. By using a combination of keys, for example,
pressing S and W together, will make the cursor move
diagonally up and to the left.

Menu mode

The ST keys are used to highlight menu items before
selecting them.

The X key is used to select a new menu item, or go
further into an item’s sub menu.

A single press of the W key returns you to the previous
menu or mode.

Press and hold the W key returns you to the Display Mode

))

Keypad Overview 23

Data entry mode

During data entry, the NavPad keys are used to highlight
characters and numbers before using the ENTER/MENU
key to select them.

3.4 Zoom keys

In Map Mode these keys have two functions:

A short single press, will increase or decrease the
range shown in the display about your current
position.

Press and holding, will increase or decrease the
range shown in the display about the cursor.

3.5 ENTER/MENU

Pressing the ENTER/MENU key in any display mode, will
select “Menu Mode” and display the menu in the top left
corner.

When navigating within a menu, once an item has been
highlighted, pressing the ENTER/MENU key or the X
key, will select that item or sub menu.

In data entry mode the ENTER/MENU key is used to
enter that data into the systems memory.

3.6 INFO/STATUS

A short press allows you to view the received information
of a vessel that has been highlighted using the cursor.
Press and holding the INFO/STATUS key will show your
own vessel’s information in a column on the right side of
the display.

3.7 TRACK/CLR TRK

The AI50 can show the track of a selected vessel. A single
press of the TRACK/CLR TRACK toggles the tracking of
a vessel on/off. Press and holding, will clear all displayed
tracks.

•

•

++

STATUS

INFO

STATUS

INFO

CLR TRK

TRACK

CLR TRK

TRACK

24 Keypad Overview

3.8 HOME/DSC

Resets the view and your own vessel’s position to the
centre of the display, or the offset position if activated.

Press and holding the HOME/DSC key initiates a DSC
call, to a highlighted vessel, via an installed, compatible
SimNet VHF radio.

3.9 VIEW/DISPLAY

Toggle between views (HEADUP, NORTHUP, COGUP).

Press and hold VIEW/DISPLAY to access Text Mode in
which the map is replaced by a list of target vessels and
their details. While in Text Mode, short presses of the
VIEW/DISPLAY key will cycle through the predefined
order in which the vessels are sorted.

Press and hold again to restore map view.

3.10 PWR/ (backlight adjustment)

Short presses of the PWR/ key will cycle through the
preset lighting levels.

Figure 3.3 - Display and Keyboard

brightness message

DISPLAY

VIEW

DISPLAY

VIEW

DISPLAY

VIEW

DISPLAY

VIEW

Menu Navigation 25

4 Menu Navigation

4.1 General operation

Throughout this manual, the following convention will
apply to the way you navigate the AI50 menus, and select
and change the user settings.

4.2 Navigation keys

To fi nd your way around the AI50 menus, you mostly use

the NavPad keys and the ENTER/MENU key.

The ST keys are used to highlight items in the menu list
before selecting them.

A single press of the W key returns you to the previous
menu or mode. Press and hold the W key will return you
to the Map Mode.

All user setup data, falls into one of the following categories:

Tick box
Pre-defined list
Alpha/numeric entry

4.3 Data entry mode

During data entry, the ST keys are used cycle through
a pre-defined list before selecting a value, or used in
conjunction with the WX keys, to move around the alpha/
numeric characters on the screen. For example, during
vessels configuration, such as MMSI, vessel name and
callsign entry.

4.4 ENTER/MENU

Pressing the ENTER/MENU key in any display mode, will
select “Menu Mode”. The top level menu, will appear in
the top left hand corner of the display.

•

•

•

26 Menu Navigation

The ENTER/MENU key or the X key, is then used to go
further into a highlighted menu or sub menu, or to select
an item in that menu.

Once a change has been made, pressing ENTER/MENU
saves that change to the AI50’s memory.

With a tick box, the ENTER/MENU key simply turns the
option on or off, (ticked or un-ticked).

or Xor X

Initial Configuration 27

5 Initial Confi guration

5.1 Window display convention

Throughout the operation of the AI50 all displays will
conform to the following convention for daylight settings:

Title bar:

This is the top bar of a window, and will display the title
or type of warning/alarm being displayed. In information
and menu windows the Title Bars will be “Blue”. In
general alert windows it will be “Yellow and in windows
displaying serious alarms, it will be “Red”.

Information area:

The middle portion of the window will show the
information/menu or graphic relevant to the title
displayed and will be grey.

Instruction bar:

The lower bar in the window is known as the “Instruction
Bar”. This bar will inform you of what action to perform,
relevant to the information being shown, and will
normally be “White”. For general alerts it will be “Yellow”
and for serious alarms it will be “Red”.

28 Initial Configuration

5.2 Initial start up sequence

When you turn your AI50 on for the first time, you will be
prompted to select the language you want the unit to work
in. Highlight your choice and select it. The default is “English”.

Figure 5.1 – Select language

Once selected, press ENTER/MENU to continue. The
display changes to show a warning regarding good
seamanship.

Figure 5.2 - Start Up Screen

Press W to clear this window and continue. If you have
not previously configured the unit, a new Information
window appears asking if you wish to configure the AI50
for full operation now. The default value is “Yes”.

Figure 5.3 - Configuration request

Initial Configuration 29

If you wish to configure your AI50 now, select “Yes”, then go
to section 5.3. If not, select “No”.

If you select “No” the following message will be displayed.

Figure 5.4 – Configuration warning

Press W to exit the configuration menu and return to Map
mode.

If you decide not to enter your MMSI at this stage, it can
be entered later from within the System setup menu,
refer to section 6.6. However, you will not be permitted to
enter any other information about your vessel until MMSI
entry has been completed.

Your AI50 will only operate as a receiver, until you have
fully completed the ship confi guration as described in
Section 5.3.

5.3 Ship confi guration procedure

From Map Mode, select Menu Mode, scroll down the menu
and select “System Setup”.

Scroll down to “System Setup” menu and select “Ship
Configuration”. A more detailed procedure is explained
further on in this chapter.

All values selected during this procedure will be
automatically stored in the AI50 memory once completed.

All data entered during this procedure can be edited
at any time, except the MMSI. Once this has been
entered and confi rmed it will become locked and
shown as greyed out. Indicating that it can be
viewed, but not edited.

))

30 Initial Configuration

Should it become necessary to change your MMSI, for
example, if you wish to re-install your AI50 into a new
vessel; you will need to contact your local Simrad dealer
about reprogramming a new number.

MMSI Entry

If you have selected "YES" when asked to “Configure
Now”, a warning window will appear.

Figure 5.5 – MMSI Entry warning

Press the W key to clear the message and continue. The
warning disappears from the screen and you are now
ready to enter your MMSI number.

Figure 5.6 – MMSI Entry display

Using the NavPad keys, highlight the first number of your
MMSI and press the ENTER/MENU key to select it. The
first number appears in the display and the cursor moves
on to the second. Repeat this procedure until every
number has been entered.

If you have made an incorrect entry, highlight "" or "" and
pressing ENTER/MENU, move the cursor onto the position
of the error. Highlight the correct number and select it.

Once you are sure that your MMSI number is correct,
highlight “OK” and select it to save it.

"OK" will only function if all digits have been entered.

Once your MMSI number has been entered, the entry

))

Initial Configuration 31

screen will change, this time the title bar will read
“Confirm MMSI Entry”. You must now repeat the above
entry procedure to confirm your MMSI entry.

Once you are sure that your confirmation is correct,
highlight “OK” and select it to save it.

If both entries are identical the following message will be
displayed confirming a successful entry.

Figure 5.7 - MMSI Confirmation

Clearing this message will take you to the “Vessel
Configuration Information” window, where you can continue
entering the remaining ships configuration information.

If the two entered MMSI numbers do not match, a
message indicating this will be shown.

Figure 5.8 - MMSI mismatch warning

Clearing the display will revert you back to the
Configuration Request window as shown in Figure 5.3 to
start again.

If you need to cancel the input mode, highlight the
“CANCEL” button and select it. A warning will be shown in
the display.

Figure 5.9 - MMSI cancelled warning

Clearing the display will revert you back to the
Configuration Request window as shown in Figure 5.3.

32 Initial Configuration

Once the MMSI number has been entered and confirmed,
the next stage of the configuration is highlighted.

The MMSI number is now shown as greyed-out and locked
into the system memory; no further changes can be
made to it except by an authorised agent.

Figure 5.10 – Vessel configuration list

Vessel type entry

Highlight “ Vessel type” and select it. The default value,
“Not Set” will be highlighted.

Figure 5.11 – Vessel Type Entry Screen

The available choices for vessel type are:

Not Set (default)
Pleasure Craft
Sailing Vessel
Military
Diving Ops
Dredging
Tow Large Load
Towing
Fishing

When you have made your choice, select it to save it into
the AI50’s memory.

Vessel dimensions & GPS reference

Select “Vessel Dimensions & GPS Reference”. A window
opens showing the required dimensions.

•

•

•

•

•

•

•

•

•

Initial Configuration 33

Figure 5.12 – Vessel Dimensions

& GPS Reference Entry Screen

All numeric entries must include preceding zero’s. For
example if “Dim A “ is 20 metres, it should be entered
as “020” and not “20” before “OK” is selected, if not the
following message will appear.

Figure 5.13 - Dimension entry error

Enter the required dimensions of your vessel, (in metres),
with reference to the GPS antenna, using the same
method of entry as described during MMSI entry.

Once you have entered a dimension, the cursor will
advance to the next one. When complete, highlight "OK"
and select it to accept your entry. The display returns to
the vessel configuration Information window.

If you have made an incorrect entry, use the same method
to correct it as described in “MMSI Entry” earlier in this
section.

34 Initial Configuration

Call sign entry

Selecting “Call Sign” will open a window allowing you to
enter you vessels callsign.

Figure 5.14 – Call Sign Entry Screen

Enter your callsign using the same method of entry as
described during MMSI entry. When complete highlight
“OK” and select it to save it.

If you have made an incorrect entry, use the same method to
correct it as described in “MMSI Entry” earlier in this section.

Vessel name entry

Select “Vessel Name”. A window opens identical to the call
sign entry window, figure 5.14 but with “Vessel Name
Entry” in the title bar.

Enter your vessel’s name using the same method of entry
as described for “MMSI entry”. When complete highlight
the OK button and select it to save it.

Once the Vessel Name has been entered, the display returns
to the Vessel Configuration Information menu.

Figure 5.15 – Completed vessel confi guration

Ships Configuration is now complete and stored in the
unit’s memory ready for use.

Menu Mode 35

6 Menu Mode

6.1 General

The AI50 has many advanced features that are user
configurable. These options can be accessed by pressing
ENTER/MENU during any display mode. A window opens
in the top left corner displaying the Main menu options.

Figure 6.1 – Menu Mode Display

6.2 Display mode settings

This section will change the way the display looks when in
operation.

From the Main menu highlight “Display Mode” and select
it. A sub menu opens displaying various options and their
current status.

Figure 6.2 – Display Mode Options

Coastline detail

This option allows you to turn the coastline detail on and off.

The default value for this option is “on”, and a tick is shown
in the box. To change its value simply select it.

The coastline map is a visual aid to assist with
orientation and range. It is not a marine chart and
must not be used as a substitute for accurate charting

or Xor X

36 Menu Mode

Tracking offset

This option allows you to track the progress of your own
vessel in relation to all other AIS equipped vessels within
your VHF range.

Your vessel is shown as a boat shaped icon and will
start to track away from the centre of the screen in the
direction of your heading.

As your vessel icon approaches the edge of the screen,
the display will refresh and scroll forward putting your
vessel back to the centre again.

The default value is “off”, to turn it on simply select it, and
a tick will appear.

When set to “on” your vessel is no longer maintained at
the centre of the display, and will be allowed to track away.

Display offset

This option allows you to turn the display offset on or off.
The default value is “off”, to turn it on simply select it, and
a tick will appear.

Your vessel is now offset to the lower half of the screen,
allowing a greater range to be displayed in front of you.

Figure 6.3 – Display Offset on

This mode is limited to “COG-UP” or “HDG-UP” view
points.

or Xor X

or Xor X

))

Menu Mode 37

Your vessel will be shown in the lower half of the screen
and pointing towards the top. It will remain like this for
the duration of this mode, and when your vessel turns,
the map will rotate about it.

If in this mode you start tracking your own vessel, if “Show
Range Rings” is activated, the range rings will disappear and
the boat will move up the display under its own heading.

The display could also work for a COG-Up, but the relationship
between the vessel and the map might not be representative
of actual events taking place, due to the infl uences of the
wind and tide. Therefore, if no compass is connected to the
system, this mode will automatically appear as COG-Up.

Show range rings

This option allows you to turn the range rings on or off.

The default option for this value is “off”. To turn it “on” or
“off”, simply select it.

When set to “off”, the range rings disappear from the display,
however, the overall range across the width of the screen, is
still displayed in the lower left corner of the screen.

6.3 Display settings

This section will configure the way the display and
keyboard will look.

From the main menu highlight “Display Settings” and
select it. A sub menu opens displaying the various settings
and their current values.

Figure 6.4 – Display settings menu

))

))

or Xor X

or Xor X

38 Menu Mode

Display brightness

This option allows you to change the brightness of the
display in 10% steps, between 0-100%.

Highlight “Display Brightness” and select it. This opens a
box with the current value in.

Figure 6.5 – Changing display settings

Scroll through the pre defined values for a suitable level,
then select it.

Keypad brightness

This option allows you to change the brightness of the
keypad in 10% steps, between 0-100%.

Highlight “Keypad Brightness” and select it. This opens a
box with the current value in.

Scroll through the pre defined values for a suitable level,
then select it.

Keypad color

This option allows you to change the color of the keypad
backlighting.

Highlight “Keypad Color” and select it. This opens a box with
the current selected color. To change it between “White” or
“Red”, simply select it.

Display palette

This option allows you to change the display color palette
from a bright high visibility one ideal for daytime operation,
to a low intensity one ideal for night time operation.

or Xor X

or Xor X

or Xor X

Menu Mode 39

Highlight “Keypad Palette” and select it. This opens a box
with the current selected palette. To change it between
“Day” or “Night”, simply select it.

6.4 Favorites List

Vessels can be added to a “Favorites List” and an alarm
set, so that you receive an alert when a vessel on your list
comes within VHF range. (To set the alarm, refer to section

8.5). There are two methods for adding vessels to your list.

Adding an entry

The fi rst way to add an entry is from the main menu.
Highlight “Favorites List” and select it. A window will open
showing the current list of favorites.

Figure 6.6 - Favorites list (non selectable)

Highlight “Add New Favorite”, and select it. The display
changes showing the two available data entry fields,
“MMSI” and “Vessel Name”.

Figure 6.7 – Adding a Favorite

or Xor X

or Xor X

or Xor X

40 Menu Mode

To enter the vessel’s MMSI highlight and select it.
The “Favorite MMSI Entry” window opens. The entry
procedure is identical to entering your own MMSI number,
(see section 5.3).

Once completed highlight “OK” and select it.
The display will return to the previous window.

Figure 6.8 – New Favorite added

Next, highlight “Vessel Name” and select it. The “Vessel
Name Entry” window opens. The entry procedure is identical
to entering your own Vessels Name, (refer to section 5.3).

Once completed highlight “OK” and select it. The display
reverts to the previous window, figure 6.8.

A favorite can be added to the list with just an MMSI
number, but cannot be added with just the vessel name.
Unlike your own vessels MMSI number, this MMSI can be
changed, edited or deleted once entered.

If an entry is inserted without the name, the next
time that vessel is in range the name will be inserted
automatically. If a name already exists in that fi eld then it
will not be overwritten.

The second way is from within Map Mode. Place the cursor
over the selected vessel, and a highlighted box will appear.

Press the INFO/STATUS key once, and the display
changes to show a summary of that vessel’s information.
Press the INFO/STATUS key a second time and a full
listing of the information appears.

To add this vessel to your list, simply select it.

or Xor X

or Xor X

or Xor X

))

))

STATUS

INFO

STATUS

INFO

or Xor X

Menu Mode 41

Edit entry

From the Favorites List highlight “Select Favorite” and
select it.

Highlight the vessel you wish to edit and select it. A menu
window opens with the available options.

Figure 6.9 - Editing a Favorite

Highlight the field you wish to edit and select it.

Editing the MMSI number is described in section 5.3 and
editing the Vessel Name is described in section 5.3

Delete entry

From the Favorites List, highlight “Select Favorite” and
select it. Highlight the item you wish to delete and select it.

A window opens showing three choices “MMSI”, “Vessel
Name” and “DELETE”.

Highlight “DELETE” and select it.

6.5 Alarm setup

This section allows you to activate/deactivate, and setup
parameters of the various safety alarms on your AI50.

For detailed information about alarm messages, please
refer to section 8.

or Xor X

or Xor X

or Xor X

or Xor X

42 Menu Mode

From the main menu highlight “Alarm Setup” and select it.
A sub menu opens displaying the various types of alarms.

Figure 6.10 – Alarm list

Highlight the Alarm type you wish to activate or change
and select it.

Collision alarms

The AI50 has three types of alarms to help prevent a
collision at sea, they are

CPA/TCPA
Guard Zone
Lost Vessel Alarm

From the “Alarm Setup” menu highlight “Collision Alarm”
and select it. A window open showing the activation
status and values. The default is “Not Active “.

Figure 6.11 – Collision Alarms

CPA/TCPA - When you activate the CPA/TCPA Alarm

from within the Alarm Setup Menu, the CPA/TCPA will be
calculated for all AIS equipped vessels in your VHF range.

CPA – Closest Point of Approach is the calculated distance
of how close a vessel will pass.

•

•

•

or Xor X

or Xor X

))

Menu Mode 43

TCPA – Time to Closest Point of Approach is the
calculated time to reach the CPA

Calculations are made on the basis of vessels continuing
on their latest COG and SOG. When both the CPA and
TCPA values calculated by the AI50 are less than, or
equal to the values set by the user, then an alarm will
sound, and a warning will be displayed.

The CPA/TCPA values are set by the user, as described
above. It is the responsibility of the user to determine
how close another vessel may pass without being
dangerous, and how quickly the user can react to
manoeuvre their own vessel to avoid a collision.

To activate the “CPA/TCPA” alarm, highlight it and select it.
A tick appears in the box, indicate the alarm is now active
and using the values shown.

Highlight the “CPA Value” you wish to change, then select it.

Figure 6.12 - CPA/TCPA values

Scroll through the predefined values and select the most
appropriate one, (30ft – 8.1nm or equivalent in selected
units), then select it. The cursor returns to highlight “CPA
Value”.

To change “TCPA Value”, highlight it and select it. The value is
now highlighted.

Scroll through the predefined values and select the most
appropriate one, (5 min – 95min), then select it. The cursor
returns to highlight “TCPA Value”.

or Xor X

or Xor X

or Xor X

44 Menu Mode

If the calculated values are less than or equal to the values
set by the user, an alarm condition will exist.

Guard zone
This option allows you to setup an invisible perimeter around
your vessel, that when activated, a red ring will appear around
your vessel in the display, labelled “GZ”.

Any AIS equipped vessel at a distance less than, or equal to
the value you have set, will trigger an alarm, and its icon will
turn red. An audible and visual warning will also be triggered if
you have enabled it on during setup.

To activate the “Guard Zone” alarm, highlight it and simply

select it. A tick will appear in the box, to indicate the alarm is
now active and using the values shown.

To activate the “Audible/Visual Warning”, highlight it
select it. A tick will appear in the box, to indicate the
alarm is now active.

GZ Radius - To change “GZ Radius” highlight it then select
it. The value is now highlighted.

Scroll through the predefined values and select the most
appropriate one, (35ft. – 27nm or equivalent in selected
units), then select it.

The cursor returns to “Collision Alarms” menu and the
display changes as shown.

Figure 6.13 – Guard Zone active

or Xor X

or Xor X

Menu Mode 45

Lost vessel alarms

A Lost Vessel Alarm occurs when the reception from a vessel
has been lost for a period of time, which has been determined
by its missed transmission periods and last known speed.

This function allows the user to activate a warning message
each time a vessel is lost from within the current display range.

From the “Alarm Setup” menu highlight “Lost Vessel
Alarm” and select it. The display changes to show the
activation status and current setting.

Figure 6.14 – Lost Vessel Alarm

Audible/visual warning - if enabled, will activate an
audible and visual alarm each time a vessel is lost from
AI50 reception.

To activate the “Audible/Visual Warning”, highlight it and
simply select it. A tick appears in the box, indicating the
alarm is now active, and using the value shown.

Lost vessel persistence - When a vessel has been lost
from AI50 reception, its icon will change to a lost vessel
icon. Refer to section 7.2. Lost vessel persistence is the
user assignable time period for which this lost vessel icon
will remain on the screen.

To change “Lost Vessel Persistence”, highlight and select
it. The value is now highlighted.

Scroll through the predefined values and select the most
appropriate one, (1 min. – 30 min.), then select it.

The cursor returns to highlight “Lost Vessel Persistence”.

or Xor X

or Xor X

or Xor X

46 Menu Mode

Favorites alarm

This option allows you to be notified if a vessel in your
“Favorites List” comes within VHF range.

To activate the “Favorites Alarm”, highlight it and select it. A
tick appears in the box, indicating the alarm is now active.

6.6 System setup

This section is where you customise the configuration of
the AI50 to function how you want.

From the Main menu highlight “System Setup”, and select it.
A sub menu window opens showing the following choices:

Units of Measure
Set Local Time
Ship Configuration
Key Beeps
Set Language
Data Logging
Transmit Enable
Reset Options

Units of measure

This section allows you to change the units the AI50
displays, for both for distance and speed. The options are
as follows:

Distance in: Nautical Miles (default)

Miles
Kilometres

Speed in: Knots (default)

MPH
KPH

From the System Setup menu highlight “Units of Measure”
and select it. A window opens showing two choices,
“Distance” or ”Speed units”.

•

•

•

•

•

•

•

•

•

•

or Xor X

or Xor X

Menu Mode 47

Figure 6.15 - Units of Measure

Highlight the one you wish to change then select it.

Scroll through the options and select the one you wish to use.

Set local time

This section allows you to apply an offset to the GPS’s
UTC in 1 hour steps, (-13 to +13 hours), as displayed in
“Own Vessel Information”.

From the System Setup menu highlight “Set Local Time”,
and select it. A window opens displaying “Time Offset”,
where the default value is “0 Hours”.

Figure 6.16 – Set Local Time

As there is only one choice, “Time offset” will already be
highlighted, simply select it, then scroll through the pre­defined values to the appropriate offset and select it again
in order to store it.

This will only affect the time being displayed in the own
vessel information bar. All received vessel information will
be displayed as UTC.

or Xor X

or Xor X

or Xor X

))

48 Menu Mode

Ship confi guration

This section allows you to enter and edit information
about your vessel such as:

MMSI Number (If not initially entered and confirmed)
Vessel Type
Vessel Dimensions and GPS Reference
Call Sign
Vessel Name

For a detailed explanation of how to configure your vessel,
refer to section 4.3.

Key beeps

This function allows you to turn the sound on and off,
which the AI50 makes when a key is pressed.

From the System Setup menu highlight “Key Beeps”, and
select it. The default option for this value is “on”. To turn
it “off” or “on”, simply select it.

Set language

This section allows you to change the operating language
of your AI50 to a language of your choice.

From the System Setup menu highlight “Set Language”,
and select it. The display changes to show a list of
available languages, with English being the default choice.

Figure 6.17 – Language list

Highlight the language you wish the AI50 to operate in and
select it. A tick will appear in the box of your chosen language.

•

•

•

•

•

or Xor X

or Xor X

or Xor X

Menu Mode 49

Data logging

This function enables you to store an electronic record, of the
dynamic and static data received from all vessels within VHF
range during a voyage, including your own vessel’s data.

In order to use the Data Logging function, you will require
an SD card installed into your AI50.

For installation procedure of SD card, refer to section 2.8.

Enabling - To enable data logging on your AI50, first you
have to select a data file name that the information will be
stored under.

From the System Setup menu highlight “Data Logging”,
and select it. A window opens displaying the data logging
options as shown.

Figure 6.18 – Logging menu

Highlight “Log File Name” and select it. Scroll through
the predefined file names, (AISLOG1 to AISLOG10), and
select the one you wish to use.

Highlight “Enable Logging” and select it to turn it on.
A tick will appear in the box and the file name will be
greyed out. All data for your voyage will now be stored
under this file name.

If you enter this menu with a log fi le open, you will only be
able to end logging.

When you press the W key to return to the previous menu, a
pop-up window will inform you that the file has been created.

Logging is now enabled, and all information being
received will be recorded onto the installed SD card,
under the selected file name.

))

or Xor X

or Xor X

or Xor X

))

50 Menu Mode

If, however, you have omitted to fit an SD card into your
AI50, or you have a non compatible SD card, when you
try to enable logging the following message will be shown
in the display.

Figure 6.19 – Logging failure

Disabling - From the System Setup menu highlight “Data
Logging” and select it. A window opens displaying the
options as shown previously in figure 6.18.

Highlight “Enable Logging” and select it. The tick disappears
and the file name above is no longer greyed out.

When you press the W key to return to the previous menu, a
pop-up window informs you that the file is OK.

If the data logging is not disabled correctly before
powering down, all data could be lost. Disabling a log fi le
will not delete any of the data stored on it.

Playback log - To playback a data log on your AI50, you
have to select the correct data file name for the voyage you
wish to replay.

From the System Setup menu highlight “Data Logging”
and select it. A window opens displaying the options as
shown previously in figure 6.18.

Highlight “Log File Name” and select it. The “File Name” is
now highlighted. Scroll through the predefined file names
until you find the one you wish to replay, then select it.

Highlight “Playback Log” and select it to turn it on. A tick
will appear in the box and the file name will be greyed out.

On exiting, the following message will be displayed,
confirming playback is enabled and a log file is now open.

or Xor X

or Xor X

))

or Xor X

or Xor X

or Xor X

Menu Mode 51

Figure 6.20 – Logging Confirmed

If you enter this menu with a log fi le open, you will only be
able to end playback.

Transmit enable

This option allows you to turn the AI50’s VHF transmitter “on”
or “off”, rendering you either visible or invisible to other AIS
equipped vessels in your VHF range.

From the “System Setup” menu highlight “Transmit Enable”
and select it. The default value for this option is “On”. To
turn it “off” or “on”, simply select it.

Reset options

Selecting this option will reset all system variables back to their
factory default settings, except for the ship’s configuration.

From the System Setup menu highlight “Reset Options”
and select it. A window opens showing “Reset Options”
already highlighted.

Figure 6.21 – Reset Option

To continue with a system reset, select it, and a tick will
appear in the box. Highlight “CONFIRM” and select it. A
window will open confirming that the system has been reset.
Figure 6.22

))

or Xor X

or Xor X

or Xor X

52 Menu Mode

Figure 6.22 – Reset Confirmed

6.7 SimNet/NMEA2000

From the Main menu highlight “SimNet/NMEA2000” and
select it. A window opens showing the following choices:

Data Sources
Network Management
Network List
Remote Enable
DSC Radio Select

Data sources

This section allows you to select a SimNet/NMEA2000 data
source, to provide compass heading information.

The data source must be able to supply magnetic
compass heading.

From the “SimNet/NMEA2000” menu, highlight “Data
Source” and select it.

As there is only one choice, “Heading” will already be
highlighted, simply select it.

Figure 6.23 – Data Source menu

Scroll through the available SimNet data sources to the
one of your choice and select it.

•

•

•

•

•

))

or Xor X

or Xor X

Menu Mode 53

Network management

This section allows you to manage all of the SimNet
networks on your vessel, as well as all of the SimNet
devices you have connected to those networks.

From the SimNet/NMEA2000 menu highlight “Network
Management” and select it.

The Network Management window opens showing “Device
Instance” and “System Instance”

Device instance - This option will normally be used on
large complicated systems, where there maybe more than
one radio system or AIS on the same SimNet bus. For
example, the system may contain more than one AI50.

To prevent conflict across the network, these can each be
assigned a unique device number between 0 and 255.

Figure 6.24 – Device Instance

From the Network Management menu, highlight “Device
Instance” and select it. Scroll through the pre-defined
numbers to the one of your choice, and select it to enter
it into memory.

System instance - A SimNet system can have a maximum
of 50 devices or “Nodes” attached to it. If a large vessel
has a requirement for more than 50 nodes, then a multiple
network system is required. The system Instance allows
the user to allocate a unique number between 0 and 15
to each network, which allows the multiple networks to
intercommunicate.

or Xor X

or Xor X

54 Menu Mode

If your vessel is large enough that it is likely to require
setting up multiple networks, it is strongly advised that
you contact Simrad Technical Support to discuss you
particular system requirements before proceeding further.

From the Network Management highlight “System Instance”
and select it. Scroll through the pre-defined numbers to the
one of your choice, and select it to enter it into memory.

Network list

This function displays all products connected to the
SimNet/NMEA2000 network. From the SimNet/NMEA2000
menu highlight “Network List”, and select it. The Network
List window opens, showing a list of all the products
connected to the SimNet Network.

Remote enable

This option allows you to “Enable” or “Disable” the Simrad
WR20 Remote Commander handset from controlling the AI50.

From the “SimNet/NMEA2000” menu highlight “Remote
Enable” and select it.

The default value for this option is “enabled”, and a tick
is shown in the box. To change it between “enable” or
“disable”, simply select it.

DSC Radio select

If a compatible DCS radio is installed on the SimNet
network, the AI50 will enable the user to initiate a DSC call.

DSC functions will only be available, if the MMSI number
has been entered into the radio.

From the SimNet/NMEA2000 menu highlight “DSC Radio
Select”, and select it. A window opens showing the DSC
Radio Select menu and current option.

As there is only one menu item simply select it. Scroll through
the list of DSC radios to the one of your choice and select it.

If no radio is present on the SimNet network then “N/A”
will be shown in the radio list.

or Xor X

or Xor X

))

or Xor X

or Xor X

Menu Mode 55

6.8 Product info

This section will display information about your AI50’s Unique
Identifier, Software version and Ship Configuration information.

From the Main menu select “Product Info” and select it.
A window opens showing the first page of information, to
view the second page, press the W key.

Figure 6.25 – Product Info 1 Figure 6.26 – Product Info 2

or Xor X

56 Menu Mode

Blank page

AIS Map Mode 57

7 AIS Map Mode

7.1 General

This section will describe the operational features of the
AI50 Map Mode.

Figure 7.1 – AI50 Display

If the unit is returning or entering the Map mode from
any other display mode, the last settings remain valid.

7.2 Vessel icon detail

The AI50 displays different icons for each vessel state,
they are as follows:

Your COG will be shown as a dashed line emanating from
the centre of your vessel’s icon, whilst the line coming
from the front of the arrow head will be your heading.

If a vessel displaying one of these icons goes into an
alarm state, then the icon will turn red.

))

Transmit

Legend

Selected Target

Own Vessel

Range Rings

Coastline map

Display range

Vessels, heading
& COG

Display
orientation

Standard icon

Lost vessel icon

Tracked icon (Bold)

58 Display Mode

7.3 Range rings/info

The Range rings consist of three concentric circles
situated around the centre point of the display.

The screen range information is shown in the bottom left
hand corner of the display, as shown in Figure 7.1; this
indicates the range across the whole display.

The display range can be adjusted by using the zoom
keys, with each circle displaying its range information on
the left radial intersect point.

Pressing the right hand zoom key, (zoom out), increases
the range across the display.

Pressing the left hand key (zoom in), decreases the range
across the display.

If you wish to zoom in or out on vessels in a particular
area of the display, place the cursor on your selected
area, then press and hold either of the zoom keys. The
display will zoom in or out at that point, depending on
which zoom key is pressed.

If your own vessel is still in view it will be shown as a
small circle.

You can set your screen to display any of the 12 ranges,
they are:

Total Range (Across display)

No. Range (Showing own
(between rings) Full display vessel info bar)

1 0.01nm 0.08nm 0.06nm

2 0.02nm 0.16nm 0.12nm
3 0.05nm 0.4nm 0.3nm
4 0.1nm 0.8nm 0.6nm
5 0.2nm 1.6nm 1.2nm
6 0.5nm 4.0nm 3.0nm
7 1.0nm 8.0nm 6.0nm
8 2.0nm 16.0nm 12.0nm
9 4.0nm 32.0nm 24.0nm
10 8.0nm 64.0nm 48.0nm
11 16.0nm 128.0nm 96.0nm
12 32.0nm 256.0nm 192.0nm

++

Display Mode 59

7.4 Point of view

The AI50 can display information in one of three ways;
“NORTH UP”, “HEAD UP” and “COG UP”. The symbol in the top
left corner of the display informs you of your current view.

HDG UP will only be available if a compass source is present.

Pressing the DISPLAY/VIEW key, will cycle through the
available options; “NORTH UP”, “HEAD UP” and “COG UP”.

As you cycle through the options, the full name will be
displayed in the top left corner for 2 seconds before
changing to an arrow with a relevant letter in, denoting
your selected view, “N”, “H”, and “C”.

Figure 7.2 – View Modes

The “HDG Up” option will only be available when the unit
is interfaced to a suitable source of Compass Heading
information through the SimNet port.

7.5 Coast line detail

The coast line detail is drawn from internally stored
worldwide maps. It can be toggled on/off from within
“Display Mode” options in the Main Menu, see section 6.2.

The coastline map is a visual aid to assist with
orientation and range. It is not a marine chart and
must not be used as a substitute for accurate charting.

))

DISPLAY

VIEW

DISPLAY

VIEW

 2 Secs 

 2 Secs 

 2 Secs 

NORTH UP – Arrow on the display points to True North.

COG UP – Arrow on the display points to the vessels COG True.

HDG UP – Arrow on the display points to the vessels True Heading.

60 Display Mode

When the coastline detail is turned off the display will turn
a light shade of green which should not be confused with
land mass.

7.6 Cursor

The cursor is the intersecting horizontal and vertical lines
on the display, which appear whenever the 8-way NavPad
is used. It automatically times out after approximately 30
seconds of inactivity.

A single press of any cursor keys will move it by 1 pixel in the
direction of that key. Press and holding the cursor key will
allow it to accelerate and move rapidly across the screen.

7.7 Transmit legend

This is a small circle situated in the bottom right hand
corner of the display, and informs the user about the
transceiver status.

When the AI50 starts to transmit your vessels data, the
transmit legend will turn green for 1 second. If there is
an internal fault it will turn red, with an indication of the
fault, all other times it will be white.

7.8 Vessel information

The AI50 is able to view information from any AIS
equipped vessel within VHF range.

Figure 7.3a - Coastline

detail on

Figure 7.3b - Coastline

detail off

Display Mode 61

Own vessel

Press and hold the INFO/STATUS key for 2 seconds, the
display changes to show your own vessels information in
a panel on the right side of the screen.

Figure 7.4 – Own Vessel Information

To return to Full Screen View, press and hold the INFO/
STATUS key for another 2 seconds.

Other vessel’s info (reduced list)

Place the cursor over the selected vessel and a
highlighted box will appear. Press the INFO/STATUS key
once, the display changes to show you a summary of that
vessel’s information.

Figure 7.5 – Shortened List

After approximately 10 seconds the list will change to
the minimum and display just the vessel’s name, when
available, otherwise it will display the vessels MMSI
number.

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

Heading

data source

Guard zone

setting

Collision

alarm

setting

COG & SOG

Current time

Lat/Long

Own vessel
heading or COG
if no compass
available

Heading
reference
MAG or TRUE

62 Display Mode

Other vessel (full list)

Press the INFO/STATUS key a second time and you can
view a full listing of the information relating to that vessel.

Figure 7.6 – Full List

To enter this vessel into your “ Favorites List” simply select it.

To initiate a call to this vessel using a suitable DSC VHF
Radio (If attached), press and hold the HOME/DSC key.
Refer to section 7.10

Other vessel (minimal list)

Press the INFO/STATUS key a third time and just the
MMSI or name will be displayed.

Figure 7.7. – Vessels MMSI displayed

Pressing the INFO/STATUS key for a fourth time, will
return you to the Map Mode and turn off information on
the currently selected vessel.

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

STATUS

INFO

Display Mode 63

7.9 Features for vessel information

As icons with dialogue boxes move across the display,
they may overlap each other; if this is the case the current
highlighted selected dialogue box will be the top one.

If a lost vessel icon is selected, the only information
displayed in the box will be the vessels MMSI, name and
last received position.

7.10 Making a DSC call (map mode)

To make a DSC call, the unit must be connected to a
SimNet compatible DSC VHF radio.

In Display Mode highlight a vessel icon then press and
hold the HOME/DSC key, the AI50 will format a Routine
Individual DSC call. A “Creating DSC Call” window opens
showing the MMSI number and name of the vessel you
intend to call.

If this is correct and you wish to continue, press ENTER/
MENU or X to send the call. The “Routine DSC Call”
window opens confirming that the call has been created
and sent to the VHF radio.

If you wish to cancel the DSC call at this stage, press the
W key and the display will return to the map view.

If the AI50 is not connected to a compatible VHF radio
when the DSC key is pressed a message window will
open indicating that a compatible VHF radio cannot be
detected.

Further control for the DSC radio from this point must
be done at the radio. For further information on the DSC
functionality consult your radio’s user manual.

))

or Xor X

))

64 Display Mode

7.11 Text mode

To enter Text Display Mode, from the Map view, press and
hold the VIEW/DISPLAY key. The screen will change to
show a list of vessels within your VHF range.

Figure 7.8 – Text Mode

At the top just under the title bar, are the Data Headings
these are:

MMSI/NAME
COG
SOG
DISTANCE
CPA
TCPA
POS LAT
POS LON
UTC
HDG
ROT
CALLSIGN
IMO No
TYPE
DEST
ETA

Each consecutive line below the headings holds the
voyage static data for a vessel. Because this information
does not fit on the screen, use the WX keys to scroll
across the page, and use the ST to scroll down the page.

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

DISPLAY

VIEW

DISPLAY

VIEW

Display Mode 65

Changing the sort order

To change the display order in which the vessels are
sorted, press the VIEW/DISPLAY key, this will cycle
through the following sort order:

Sort by Acquire Time
Sort by Distance (Closest first)
Sort by TCPA/ CPA (shortest time first)
Sort by Speed (Fastest first)
Sort by Vessel Name (alphabetical)

7.12 Making a DSC call (text mode)

To make a DSC call to a highlighted vessel use the same
method as that described in Section 7.10, once the vessel
has been selected.

To return to Map view, press and hold the VIEW/DISPLAY

key again.

7.13 Tracking individual vessels

To track a selected vessel, place the cursor over it
to highlight it and press the TRACK/CLR TRK key
once. That icon will turn Bold and tracking will start
immediately, (although a trail may not be noticeable until
the vessel has moved sufficiently).

Figure 7.9 – Tracking individual vessels

Multiple vessels can be tracked by selecting them using the
above procedure.

•

•

•

•

•

DISPLAY

VIEW

DISPLAY

VIEW

DISPLAY

VIEW

DISPLAY

VIEW

CLR TRK

TRACK

CLR TRK

TRACK

66 Display Mode

To cancel individual tracking, select the vessel icon you wish
to cancel and press the TRACK/CLR TRK key. The vessel
icon will return to its non-bold state and the existing trail will
be cleared.

7.14 Tracking your own vessel

To turn own vessel tracking on, place the cursor over your
vessel to highlight it and press the TRACK/CLR TRK key
once. Your icon will turn red and bold, and tracking will
start immediately, although a trail may not be noticeable
until your vessel has moved sufficiently.

Figure 7.10 - Tracking your own vessel

If “Tracking Offset” is not active when you select “TRACK/
CLR TRK”, your vessel will be shown as a small circle at
the centre of the display.

If “Tracking Offset” is already active when you select
“TRACK/CLR TRK”, your vessel will be shown as a
distinctive boat icon at its current GPS location on the

display, See section 6.2.

7.15 Clearing down all trails

To clear all existing vessel trails, including your own vessels,

press and hold TRACK/CLR TRK for 2 seconds.

All vessels will return to their non-bold state and all tracks
will be cleared from your display.

CLR TRK

TRACK

CLR TRK

TRACK

))

))

CLR TRK

TRACK

CLR TRK

TRACK

Display Mode 67

7.16 Light adjustment (short cut)

Single presses of the POWER key will cycle through
the preset lighting levels, in 20% steps, for both the
keypad and display.

When changing light levels in this mode, the keypad light
will only go to a minimum of 10%. This is to allow for
viewing at night.

The current backlighting settings will be stored when the
AI50 is powered down.

For further lighting options refer to section 6.3.

7.17 KeyLock function

The AI50 has the ability to lock the keypad to prevent
accidental key presses.

Lock - To lock the keypad press POWER once. A
window will open and display the following message.

Figure 7.11 - Keypad lock message

Pressing ENTER/MENU will lock the keypad, and the
screen will revert back to its previous display, the keypad
is now locked.

Unlock - To unlock the keypad press POWER once. A
window will open and display the following message.

Figure 7.12 - Keypad unlock message

))

or Xor X

68 Display Mode

Press ENTER/MENU within 2 seconds to unlock the
keypad.

The screen will revert back to its previous display, and the

icon will disappear from the screen.

The “lock” and “Unlock” messages will only remain on
screen for a few seconds.

))

Alarms 69

8 Alarms

8.1 General

This section details the types of visual alarms, alerts and
warnings used by the AI50. All alarm windows will have a
hazard symbol displayed in the title bar.

All alarms relating to another vessel will display the
following information about that vessel when triggered:

MMSI
Ships Name
Latitude
Longitude
UTC
Bearing
COG
SOG
CPA
TCPA

Each alarm state produced by the AI50 has an order of
priority dependent on how serious the alarm condition is
these are shown with their respective warning icon below:

Level 1 – is the highest priority alarm, which require
immediate action. This alarm status if not acted upon with
great urgency, could result in loss or serious damage to
your vessel and /or loss of life.

Level 2 – high priority requires prompt attention. If
this alarm status is not acted upon with some urgency, it
could possibly develop into a “Level 1” Alarm resulting in
loss or serious damage to your vessel and /or loss of life.

Level 3 – medium priority, and are reserved for
warnings of a less urgent nature.

All audible and visual alarms will remain until confi rmed and
cleared. If further alarms are activated before the current
one is cleared, they will be stacked up and displayed in
order of their priority, the highest priority being at the top.

•

•

•

•

•

•

•

•

•

•

))

!

!

!

70 Alarms

8.2 Collision avoidance alarms

The Simrad AI50 boasts a sophisticated, very simple
to use, collision avoidance alarm system. Which, when
enabled, becomes an important aid in the prevention of
collisions at sea and ensures even greater safety for your
vessel and passengers.

These collision alarms are:

CPA/TCPA alarm
Lost Vessel alarm
Guard Zone alarm

CPA/TCPA alarm

This is a Level 1 alarm. If you have activated the CPA/TCPA
Alarm from within the “Alarm Setup” Menu, the CPA/TCPA is
then calculated from the received position, COG and SOG of
the AIS transmissions, from all AIS equipped vessels within
VHF range.

CPA – “Closest Point of Approach” is the calculated
distance of how close a vessel will pass.

TCPA – “Time to Closest Point of Approach” is the
calculated time to reach the CPA.

The CPA/TCPA alarm values are set by the user, as
described in section 6.5. These are based on the last
calculated COG and SOG, assuming the vessel continues
on the same course, at the same speed.

It is the responsibility of the user to determine
how close another vessel may pass without being
dangerous, and how quickly the user can react to
manoeuvre their own vessel in order to avoid a
collision.

If both values calculated by the AI50 are less than, or
equal to the values set by the user, then an alarm will
activate, regardless of what screen the unit is in.

An audible alarm will sound and a window will open
displaying the following information. Figure 8.1.

•

•

•

))

Alarms 71

Figure 8.1 – CPA/TCPA Alarm

Because this information is live, it is continuously being
recalculated and updated.

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

The icon of the vessel which caused the alarm to activate
will turn red, indicating an alarm condition still exists.

Figure 8.2 – Collision Alarm view

It is the responsibility of the vessel’s captain to
determine what action to take in this situation in
order to avoid a collision.

Once action has been taken, and the calculated values
increase beyond the limits as set in the “Collision Alarm”
menu, the vessel’s icon will return to its normal state.

72 Alarms

Lost vessel alarm (1)

This is a Level 1 alarm and will sound whether the Lost
Vessel alarm, as described in Section 6.5, has been set by
the user or not.

If a vessel activates a CPA/TCPA or Guard Zone alarm,
and the AIS transmissions from that vessel are lost;
regardless of what screen the AI50 is in, an audible alarm
will sound and a “Lost Vessel Collision Alert” window will
open, displaying the last received information.

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

The icon of the vessel which caused the alarm to activate
will change to a “Lost Vessel” icon. Refer to section 7.2.
It will retain its previous color and bold outlines, and
flash at a rate of once every second, indicating that this
condition still exists.

The icon will remain on the display in this state for 10
minutes before being erased. However, if reception from
the lost vessel’s AIS is re-established, the icon will return
to its previous state.

Guard zone alarm

This is a Level 2 alarm. The guard zone is determined
by the radius dimension entered during setup. Refer to
Section 6.5. A red circle will surround your vessel, but the
size will depend on the range selected.

If “Track Own Vessel” mode has been activated; the red
circle will track with your own vessel’s icon.

For every AIS equipped vessel entering your Guard Zone,
an alarm will be generated, regardless of what screen the
AI50 is in, and a “Guard Zone Collision Warning” window
will be displayed.

))

Alarms 73

Figure 8.3 – Guard Zone Warning

To confirm and clear this alarm press ENTER/MENU. The
icon of the vessel which caused the alarm to activate will
turn red, indicating an alarm condition still exists.

Once a vessel leaves the Guard Zone its icon will return to
the normal state.

8.3 BIIT alarm

The BIIT (Built In Integrity Test) is a Level 2 alarm.

The AI50 is constantly monitoring and testing the
integrity of the AIS transceiver. Should a fault be detected
within the unit, the small circle situated in the bottom
right hand corner of the display flashes red, and a text
message informs the user about the transceiver status.

The “BIIT” message will remain there until the fault is
cleared by the AI50 circuitry, or the unit has been repaired.

If the unit is powered down with a BIIT fault still active,
the fault type will be saved to memory and displayed the
next time the AI50 is turned on.

8.4 Lost vessel alarm (2)

This is a Level 3 alarm, and will be activated when the
AIS reception from a vessel is lost.

An audible alarm will sound and a “Lost Vessel Alarm”
window will open, displaying the last received information.

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

74 Alarms

The icon of the vessel which caused the alarm to activate
will change to a “Lost Vessel” icon. Refer to section 7.2.
If the text display is active, the text line for that vessel’s
data will be greyed out.

If reception from the lost vessel’s AIS is re-established,
then the icon will return to its previous state.

8.5 Favorites alarm

This is a Level 3 alarm, and will only display if the option
has been activated in the “Alarm Setup Menu”. If a vessel
entered on your favorites list comes within your VHF range
the following window will open and the alarm will sound.

Figure 8.4 - Favorite ship alert

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

8.6 Loss of compass heading data

This is a Level 3 alarm, and will only activate if the SimNet/
NMEA2000 data for the ships compass is lost.

An audible alarm will sound and a “Loss of Compass” alarm
window will open showing details of the lost compass and
any other compatible compass units on the network.

Highlight an alternative device and select it.

If the ENTER/MENU key has been pressed without
selecting a new compass, the unit will continue to operate
without compass information, and any displays consisting
of the vessel’s own heading will be blank.

If “HDG Up” or “North Up” View Point is selected, it will be
cancelled and the display View Point changes to “COG Up”.

or Xor X

Alarms 75

If the original compass unit returns to the network this
will automatically be re-selected, and a message window
will appear to indicate this.

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

8.7 Safety message alarm

AIS technology incorporates a messaging system that
allows approved users to broadcast safety messages that
will appear as text in the AIS display.

This is a Level 3 alarm, and will activate if a safety
message is received from another vessel over the AIS
network. An audible alarm will sound and a “Safety
Message Alarm” window will open, displaying the received
information and the safety message. An example is
shown here.

Figure 8.5 – Example Safety Message

To confirm and clear this alarm, press W, this will close
the window and return you to current display.

76 Alarms

Blank page

Appendix 77

9 Appendix

9.1 Maintenance

Periodically wipe down the casing and display screen with a
clean damp cloth.

To remove heavier marks use mild soapy water, dampen
cloth and wring out thoroughly before wiping unit.

Never use cleaning solutions containing spirit or
alcohol as these can damage the unit.

9.2 Troubleshooting

These simple checks should be carried out before seeking
technical assistance and may save time and expense.

General Symptom Possible Cause Remedy

Unit will not switch on Faulty connector to power

Fuse has blown

•

•

Check power
connection
Replace fuse and check
power supply

•

•

No picture on display Unit not powered up

Light level set too low

•

•

Press PWR/ key
Increase light level.
(See section 3.10 and

6.3)

•

•

No mapping detail Coastline detail not active• Activate coastline detail

(see section 6.2.1)

•

No GPS Position data Antenna or cable problem• Check antenna cable

and connections

•

No HDG info SimNet cable problem• Check SimNet power/

connector

•

Not logging No SD card fi tted

Wrong type of SD card

•

•

Install SD card (see
section 2.8)
Install correct type SD
card (see section 2.8)

•

•

No AIS transmission MMSI not entered

Transmit disabled

•

•

Enter MMSI number
Enable Transmit (see
section 6.6)

•

•

78 Appendix

9.3 Accessories

The following accessories are available from local Simrad
agents:

VA14* VHF AIS antenna - S/S whip with 20 metres
Cable, terminated in a PL259 plug.

* One off required for operation

9.4 Product specifi cations

AIS Type

Class B for use on non-SOLAS craft

VHF Receiver

Receiver type Dual TDMA (shared DSC)
Sensitivity < -107dBm for 20% PER
Transmit power 2Watt
Type Approval Meets IEC62287-1

GPS Receiver

Receiver type Integral 16 channel receiver

EMC

IEC60945

Power

Voltage 10.8 – 15.6VDC
Current <1A
SimNet/NMEA2000 Network load 1

Backlighting

Keypad LED (Red or White)

Display Type

VGA TFT 102mm (4in)

Connectors

VHF Antenna PL259
GPS Antenna SMB

Compass mounting

Safe distance 0.3m

Environmental

Waterproofing IP67

Temperature range

Operational -15°C to +55°C
Storage -40°C to +85°C

Physical

With Bracket 201mm (7.9”)x133mm (5.2”)x77mm (3”)
Without Bracket 172mm (6.8”) x 115mm (4.5”) x 77mm (3”)
Weight 1Kg

Interfaces
NMEA0183-HS

Out 38kbaud VDM, VDO, RMC, ALR
In 38kbaud for configuration & testing only

Appendix 79

SimNet/NMEA2000 PGN’s

NMEA2000 Mandatory PGNs
59392 ISO Acknowledgment
59904 ISO Request
60928 ISO Address Claim
126996 NMEA2000 Product Information

NMEA2000 Data PGNs

126992 System Time
129025 Position, “Rapid Update”
129026 COG & SOG, “Rapid Update”

NMEA2000 AIS PGNs

129038 Class A Position Report
129039 AClass B Position Report
129040 Class B Extended Position Report
129792 DGNSS Broadcast Binary Message
129793 UTC and Date Report
129794 Class A Static and Voyage Related Data
129795 Addressed Binary Message
129796 Acknowledge
129797 Binary Broadcast Message
129798 SAR Aircraft Position Report
129800 UTC/Date Enquiry
129801 Addressed Safety Message
129802 Broadcast Safety Message
129803 Interrogation
129804 Assignment Mode Command
129805 Data Link Management Message

80 Appendix

9.5 Dimensions

Figure 9.1 - AI50 dimensions

Figure 9.2 - GPS Antenna dimensions

9.6 Service and warranty

If it is necessary to have a unit repaired, please contact
your local authorized dealer. For worldwide warranty
details and a list of authorised Simrad agents please refer
to the Warranty Card supplied with this unit.

Appendix 81

English Hereby, Simrad Limited (Margate) declares that this AI50 is in compliance with

the essential requirements and other relevant provisions of Directive 1999/5/
EC.

Finnish Simrad Limited (Margate) vakuuttaa täten että AI50 tyyppinen laite on direktiivin

1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen
mukainen.

Dutch Hierbij verklaart Simrad Limited (Margate) dat het toestel AI50 in

overeenstemming is met de essentiële eisen en de andere relevante bepalingen
van richtlijn 1999/5/EG.

French Par la présente, Simrad Limited (Margate) déclare que ce AI50 est conforme

aux exigences essentielles et aux autres dispositions de la directive 1999/5/CE
qui lui sont applicables.

Swedish Härmed intygar Simrad Limited (Margate) att denna AI50 står i överensstämmelse

med de väsentliga egenskapskrav och övriga relevanta bestämmelser som
framgår av direktiv 1999/5/EG.

Danish Undertegnede Simrad Limited (Margate) erklærer herved, at følgende udstyr

AI50 overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/
EF.

German Hiermit erklärt Simrad Limited (Margate), dass sich dieses AI50 in

Übereinstimmung mit den grundlegenden Anforderungen und den anderen
relevanten Vorschriften der Richtlinie 1999/5/EG befindet. (BMWi)

Greek Με την παρουσα Simrad Limited (Margate) δηλωνει οτι AI50

συμμορφωνεται προς τις ουσιωδεις απαιτησεις και τις λοιπες σχετικες
διαταξεις της οδηγιας 1999/5/ΕΚ.

Italian Con la presente Simrad Limited (Margate) dichiara che questo AI50 è conforme

ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva
1999/5/CE.

Spanish Por medio de la presente Simrad Limited (Margate) declara que el AI50 cumple

con los requisitos esenciales y cualesquiera otras disposiciones aplicables o
exigibles de la Directiva 1999/5/CE.

Portuguese Simrad Limited (Margate) declara que este AI50 está conforme com os requisitos

essenciais e outras provisões da Directiva 1999/5/CE.

The equipment named in this declaration, is intended for use in international waters as well as
coastal sea areas, and inland waterways administered by countries of the E.U. and E.E.A.

Website – www.simradyachting.com

9.7 Declaration of Conformity (EU)

82 Appendix

Blank page

Index 83

8-way NavPad 22, 25

A

accessories 76
alarm priority 67
alarms

BIIT 71
CPA/TCPA 42, 68
favorite 45, 72
guard zone 44, 70
loss of compass heading data 72
lost vessel 44, 55, 70, 71
safety message 73

alarm setup 41

B

backlighting

display 24, 65
keypad 24, 65

C

call sign 34
coast line detail 35, 58
COG UP 57
compass data source 52
control unit

connections 15
dimensions 78
front panel 21
installation 13
maintenance 75

specifi cations 76
CPA/TCPA 42, 43, 63, 68, 70
cursor 58

D

data formats 25
data logging

disabling 50

enabling 49

playback 50
data sources 52
display

brightness 38

palette 38

display nomenclature 55
display offset 36
DSC call 61, 63
DSC Radio 54

E

ENTER/MENU 23, 25

F

favorites list

add to 39, 60
delete from 41
editing 41

G

GPS reference 33
GZ Radius 44

H

HDG UP 57
HOME/DSC 24, 60, 61

I

INFO/STATUS 23, 40, 59
installation

electrical 17
GPS antenna 14
mounting

bracket 14
panel 13

SD card 18
SimNet 18
VHF antenna 15

K

key beeps 48
keypad

color 38
keypad brightness 38
keypad lock

lock 65

unlock

10 Index

84 Index

L

language 48
light adjustment 65
lost vessel persistence 45

M

MMSI 30, 75
modes of operation

text mode 62

N

network management 52
NMEA2000 AIS PGNs 77
NMEA2000 Data PGNs 77
NORTH UP 57

P

points of view 57

COG UP 57
HDG UP 57
NORTH UP 57

product information 54

R

range rings 37, 56
regulations

DOC (EU) 79
FCC 15

remote control 54

S

service and warranty 78
ships confi guration 29, 47
SimNet/NMEA2000 network

compass data source 52
device instance 52
network list 53

system instance 53
SimNet/NMEA2000 PGNs 77
sort order 63
system reset 51
system setup 46

T

text mode 62
time offset 47

TRACK/CLR TRK 23, 63, 64
tracking

clear all tracks 64
clear tracks 63
individual vessels 63

own vessel 64
tracking offset 36
transmit enable/disable 50
transmit legend 58
troubleshooting 75
turning on/off 22

U

units of measure 46

distance 46

speed 46

V

vessel dimensions 33
vessel icons 55
vessel information 58

other vessel 59, 60

own vessel 59
vessel name 34
vessel type 32
VIEW/DISPLAY 24, 62, 63

Z

zoom 21, 23