On Tue, 19 Jul 2005 21:48:42 GMT, "Alberto \(Tilax\)"
wrote:


I'm italian and by the first days of august I'll be in the Grenadines
islands for sailing.
Here we do use VHF channels known as 'International channels'.. don't know
if in the Grenadines area I'll need USA Channels or International Channels.

Sure I know that musch part of them are the same but I don't want to be
there with a VHF pocket radio with just few working channels.

The simplex channels (single-frequency, usable for intership
communications) are the same for the US and International bandplans.
The USA uses some of the international duplex channels (two-frequency,
often used for ship-shore telephone) as simplex, using only the ship
transmit frequency. Such use is normally indicated by adding an "A"
suffix to the channel number. For example, in international use,
channel 22 is duplex, but in the US (and Canada), we use it as
simplex, and call it 22A (used by US and Canadian coast guards for
non-emergency communications wit the public.)

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