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9
RECOMMENDED TESTING PROCEDURES
9.1
Typical setup of equipment connection for testing
9.1.1 Testing of VHF radio stations with DSC through vessel's antenna
SETTINGS / Test config
Fig. 9.1 Connection setup of NGT-200 for testing the
VHF radio station with DSC through vessel's antenna
Tester automatically detects connected VHF Power sensor SWR meter, thus there is
no need to set up configuration in menu: SETTINGS > Test config.
This setup allows to test with the most accuracy the output power level of
transmitter and the SWR of antenna feeder in real circumstances on the vessel.
Besides the transmitter, antenna and antenna feeder route are checked as well.
Due to transmitted signal is sent by antenna in broadcast and can be accepted in
radius of tens of nautical miles, this setup has to be used with precaution – carry out
testing on channels 6, 9, 13 and 16 as fast as possible.
It is absolutely forbidden send DISTRESS signal in this setup (fig. 9.1)!
To check DSC messages transmission to antenna use Individual Call – Test or
Routine.
: "S" – Power sensor;
61
NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
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