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  DSC: Class-D: International v. US

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Author Topic:   DSC: Class-D: International v. US
jimh posted 08-12-2007 05:19 PM ET (US)   Profile for jimh   Send Email to jimh  
According to a nice A-V presentation at

the "Class-D" DSC VHF Marine radio is available in two distinct classes, one called "International" and one called "US." The US version is, according to this source, quite different and inferior.

Is there really such a thing as two categories of Class-D DSC VHF Marine radio?

If there are two categories, why is the US version so inferior. I cannot understand why our Coast Guard or other marine authorities would allow this.

Or is this presentation--which is the first and only place that I know of to make this distinction--all wrong?

Prior to running across this presentation I was under the impression that a Class-D DSC radio was quite different than a SC-101 rated radio, which is a US-only standard. Have the presenters at BoatUS become confused?

Chuck Tribolet posted 08-12-2007 05:25 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
They want you to take 37 minutes to listen to a presentation
that you could read in about five?


jimh posted 08-12-2007 05:27 PM ET (US)     Profile for jimh  Send Email to jimh     
Chuck--It's for the next generation, who grew up without books in school.

Jump ahead to the section on Classes of DSC radios. It is in sub-part five. The announcer has a nice voice but he does not know how to pronounce LORAN.

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