On Sat, 15 Apr 2006 19:24:53 -0400, Larry wrote:

"Pascal" wrote in news:1145139514.303678.7110
:

The frequency os AIS can change at every country?



No, it's the same. My mistake. In the USA, one of the channels was a
duplex pair used by the old marine telephone operators so its either 87a or
88a, I forget which, which designates it as a simplex frequency (one
frequency transmit and receive so AIS will work). The whole VHF bandplan
across the planet is stupidly laid out and way out of date...


No - AIS is on 87B and 88B - the shore transmit frequencies of duplex
channels 87 and 88.

--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
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