Re: Best of the budget VHF radios?
I don't think that there is any significant difference between identification of Class-D radios in the United States and in other countries. Most manufacturers are not producing a special radio for sale only in the United States in order that they can call it a "Class-D" radio under some lesser standard. As far as I know, any radio identified as "Class-D" in the United States is also identified as such in Canada.
I would suggest that the material presented above (which as I mentioned is probably a cut and paste without any attribution of something written by Chuck Husick) is perhaps out of date. I say that because on Monday, January 28, 2008, there was a change in the regulations of FCC regarding DSC for Marine Radios in the United States.
Cf.:
http://www.regulations.gov/fdmspublic/component/main?main=DocumentDetail&o=09000064803a2308
Here is the executive summary of this final action, taken from the announcement itself. I have highlighted the applicable comments regarding labeling of DSC devices:
--
The Commission takes the following significant actions in the MO&O in WT Docket No. 00-48:
--(i) Clarifies that applicants for a GMDSS Radio Operator's License do not have to take an Element 1 examination if they have received a Proof of Passing Certificate (PPC) based on completion of a Coast Guard-approved
training course;
--(ii) clarifies the requirement of ship radio station operators to relay distress alerts from other ships that are not promptly acknowledged by a coast station;
--(iii) removes the sunset date for the Channel 16 watch requirement;
--(iv) relieves vessels that have upgraded to MF-DSC equipment of the requirement to maintain a watch on the frequency 2182 kHz; (v) modifies the requirements for station logs; and
--(vi) permits routine calling on DSC frequencies.
The Commission takes the following significant actions in the Third Report and Order in WT Docket No. 00-48:
-- (i) Requires, after prescribed transition periods,
that DSC equipment comply with the more rigorous technical standards recently established for such equipment by international bodies;
--(ii) adds the INMARSAT Fleet F77 ship earth station to the list of satellite earth stations that may be used in lieu of single sideband (SSB) radios by ships operating more than one hundred nautical miles from shore;
--(iii) mandates that additional classes of small passenger vessels carry a reserve power source to better ensure against loss of communications capabilities during distress situations;
--(iv) extends the license term for GMDSS Radio Operator's Licenses, Restricted GMDSS Radio Operator's Licenses, GMDSS Radio Maintainer's Licenses, GMDSS Operator/Maintainer Licenses, and Marine Radio Operator Permits to the lifetime of the holder;
--(v) relaxes certain rules to give both the Commission and commercial operator license examination (COLE) managers additional flexibility in administering the license examination process;
--(vi) adopts rules to regulate Ship Security Alert System (SSAS) beacons designed to operate with the COSPAS-SARSAT satellite system, and to authorize use of Inmarsat D+ equipment as an additional accommodation of SSAS operations; and
--(vii) permits the programming of channels in maritime radio transmitters through remote control.