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+--- Forum: AIS (/forumdisplay.php?fid=22)
+--- Thread: AIS 650 Performance (/showthread.php?tid=1572)
AIS 650 Performance - adfinger@aol.com - 08-08-16 07:00 PM
I have a AIS 650 with a dedicated antenna. The range for receiving other AIS transmitters is less than 6 miles in open water. Is this consider normal performance? If not what is causing this marginal performance
RE: AIS 650 Performance - Chuck - Raymarine - Moderator - 08-26-16 10:48 AM
Welcome to the Raymarine Forum adfinger,
This is indeed normal. Unlike VHF radios, AIS transceivers, particularly Class B AIS transceivers, are designed to transmit at very low power (2W). Power and antenna height are the two primary factors limiting transmission range.