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September 17th 2019 - 05:35

Thread #299

Portrait for sbaker

by: sbaker
July 6th, 2007
Important VHF Radio Bulletin
Important VHF Radio Bulletin for anyone with a modern marine VHF radio or looking to purchase a new radio.

Several models of modern VHF Radio that classify marine radio channels into groups: US, Canadian, or International are incorrectly assigning the Canadian Ch 83 to a duplex (Bravo) mode. Currently the Canadian Coast Guard - Pacific uses channel 83 A (Simplex) as their primary working channel. This means that anyone with an affected radio set in the "Canadian" mode will not be able to communicate with the Coast Guard on this channel.

Known Manufacturers with this issue:
Raymarine (most models)
Uniden (most models)

Some ICOM radios are affected and other are not.

Manufacturers NOT affected:
Standard Horizon

It is important to check your radioīs user manual and verify itīs channel assignments. Most radios are hard coded and these channel assignment can not be changed. You should look closely at the channel specifications of your radio before purchasing a new marine radio and ensure it has the correct channel assignments.

In most cases switching the radio to US mode will give you access to Ch 83A. The worse case scenario occurs with some GPS connected radios that automatically select your channel group (US/Canadian/International) based on vessel position - in these cases it is impossible to override the group and it may be impossible to access the required channel. The Uniden 525 series of Class D DSC radio is an example of this.
--
Fair Winds
 - and watch for squals from leeward

Scott W. Baker


Discussion:
Portrait for frayedknotarts

by: frayedknotarts
September 16th, 2011
Important VHF Radio Bulletin
Out of date info

Please delete this post

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