DANPHONE Futronic GMDSS-AIS-SART, Руководство пользователя, Страница: 19 / 42

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Request Message 5
The mode REQUEST MSG 5 uses the MMSI number from the last received AIS message.
Press OK and select AIS channel, and the test box will automatically synchronize with the AIS
transponder, transmit the request and then switch to receiving mode.
Example of Printout from the AIS Memory:
$AIS1 14 1A 9F 3F 2C 1A 76 E7 00 60 D3 80 94 C0 19 55 12 3C E2 43 00 00 00 00 00
00 00 00 00 14 02 81 8D 24 2D 8C 01 91 00 4E 11 25 50 00 00 00 00 00 00 00 00 00 00*
Coded AIS data can be decoded and viewed by using the decoding option of the Message
Composer and Decoder Software available for download at Danphone’s website. See page 37.
Simulate Ship
The SIMULATE SHIP is a mode in which a virtual ship is placed at four different positions
relative to the position of the AIS transponder being tested.
Using the SIMULATE SHIP mode requires that the test box has received a position from the
transponder, for instance via MSG1 or 3.
If an AIS transponder does not register its own position, for instance due to
a broken or missing GPS antenna, it will transmit an invalid position of 91
°
N
181
°
E. Please note, that some transponders do not accept invalid positions
and will consequently not display them.
In the SIMULATE SHIP mode, press
Short or Long to initiate transmissions from the test box.
Select Short if you wish to have the virtual ship placed at a short distance (
∼
50 meter) around
the transponder. Select Long if you wish to have the ship placed at a longer distance (
∼
800
meter).
After transmission of the first position, the test box waits for response from the AIS transponder
before the next position is transmitted, and so on.
NMEA Test
With the NMEA TEST mode, the test box can transmit NMEA signals via the RS232 port (B-
signal on pin no. 1, Ground on pin no. 5 and A-signal on pin no. 9).
The NMEA test mode offers you a choice between CUST. and HDG.
Select HDG. (= Heading) in order to transmit a standard NMEA heading signal.
Select CUST. (= Custom sub mode) in order to transmit a custom-made NMEA string. You can
compose and store the string yourself using the Message Composer and Decoder Software
available for download at Danphone’s website. See page 37.