True Heading AIS-CTRX CARBON, Руководство по эксплуатации и установке

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AIS-CTRX CARBON Class B AIS Transponder Manual
1.1E 40 CTRX CARBON Manual
Figure 25 In the field [Internal data], important information can be obtained about the transponder's
status and how the installation is working.
The field ‖ Internal data ‖ displays a number important data about the transponder's
status and installation. ‖ Supply voltage ‖, ‖ Internal 6V supply ‖ and ‖ Internal 3V3
supply ‖ all show that the right voltage is supplied to the transponder. Insufficient
voltage on 12 V will of course cause the transponder to stop. Likewise, the
transponder can be seriously damaged if the voltage exceeds 16 V. Therefore,
always make sure the transponder has proper fuses during installation.
‖
RSSI Rx 1 ‖ and ‖ RSSI Rx 2 ‖ are both data from continuous measurement of the
transponder's receiving status. Here, one can in an early stage see if the installation
is troubled by interference from other equipment on board or if the interference
comes from other transmitting equipment in the vicinity that use the same channel as
AIS. If the RSSI values exceed the values around 120-150, the installation should be
checked. Example of sources of interference can be generators, electrical panels,
refrigerator compressors or other radio equipment. Cables and contacts should also
be checked.
Additional information about antenna installation and the transponder's power output
can be obtained from the rows ‖
TX Forward power ‖ (output) and ‖ TX Reverse
power ‖. This standing wave measurement gives an indication if the cables and
contacts are properly installed. Output power should be high and lie at values over
120-130 for good function and around 10 for return effect.