AIS650 Power Measurement

[Chuck - Raymarine - Moderator]

Ric,

Q1. All of the conditions are satisfied. It does transmit, but range seems short
It has GPS position and the antenna has been verified by using the VHF Comm radio.
A1. Unlike VHF radios, AIS Class B transmitters output only 3W ... a designed restriction created by the governing bodies to limit the range of these transmitters. Range for Class B AIS transceivers is typically less than 5-7nm in open waters ... range may be less in coastal waters where land, structures, etc. may further limit range.

Q2. I wanted to measure the power out with the Bird 43P, but cant catch one.
Was wondering if I could force the transmitter to be keyed with a command from the diagnostics screen
A2. Negative.

A3. Also if there is a document to decode the Raymarine diagnostics codes, such as the SWR etc.
A3. Unfortunately, not. The ProAIS2 software displays VWSR within its Diagnostics tab.