DANPHONE Futronic GMDSS-AIS-SART, User Manual, Page: 14 / 42

14
For measuring the output power on
CH70 , use the setup below.
The antenna on RF OUT is used for the test box to send a request to the AIS transponder to do
a transmission on CH70.
The test box must receive a trigger signal on RF IN in order to start the power measurement. If
the test box waits for more than 20 seconds, the trigger signal level might be too low. Then
connect a VHF antenna to RF IN (dotted figure):
Alternatively, use this setup:
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO.: 0036699900 - HOUR:04 DATE:03-08-2005
AIS – CH 70: FORWARD: 12.0W REFLECT: <0.5W
AIS: FORWARD: 12.0W REFLECT: <0.5W
ANT.
AIS TRANSPONDER
ANT
AIS TRANSPONDER
SIGNAL
COMBINER