8.2 DSC Communication Test
8-6
8.2 DSC Communication Test
This is a communication test between FM-8800S/Ds. Conditions under which this can
be done with the same MMSI are below only:
- CALL TYPE: Individual (SHIP CALL)
- CATEGORY: Routine
In this case, TX output of CH70 will automatically be reduced to Low Power.
NOTE:
FM-8500, etc can receive signals with the same MMSI. For example, No.2 VHF DSC
can receive a DISTRESS CALL or ALL SHIP CALL from No.1 VHF. This tends to
confuse a user. Therefore, when receiving the same registered MMSI, it will not carry
out RX processing of messages other than messages set up by above-mentioned
setup.
Fig. 8.2.1 DSC Communication Test
Procedure
1. Carry out a DSC test from No.1 VHF to No2. VHF.
Press CALL key on No.1 VHF to create DSC message.
- CALL TYPE: SHIP CALL
- SHIP ID: No.2 VHF MMSI (Input Own ship)
- CATEGORY: ROUTINE
- TCmd 1: SIMPLEX TP
- TCmd 2: NO INFO
- CH: CH6
2. As for a setup procedure for No.2 VHF, Select [MENU] -> AUTO ACK -> and set
COMPLY STATUS setup to “ABLE”. In addition, set Handset/Remote Handsets to
“ON HOOK”, and to any channel.
3. Press CALL key on No.1 VHF for longer than three seconds. Then, “CALL IN
PROGRESS ON CH70” will appear and after transmitting from CH70 “WAITING
FOR ACKNOWLEDGEMENT” will appear. Then, wait for the ACK BQ from No.2
VHF.
No.1 VHF No.2 VHF
TR ANT CH70 ANT TR ANT CH70 ANT
1. ACK RQ
Ship Call
ROUTINE
COM. CH6
2. ACK BQ
( ABLE)
3. Voice Comunication
(CH6)
CH70 1W
CH70 1W
Handset
ON HOOK
Handset
ON HOOK
AUTO ACK: ON, Able
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