eorange
♦RF Enabled Member♦
Found while browsing: http://www.rigpix.com/miscrx/sailor_r501.htm
No question as to what it's used for!
No question as to what it's used for!
Now THIS is a dedicated radio!
- Thread starter eorange
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Marine
2.182 mhz is Marine/Coast Guard HF Frequency
Steve
eorange said:
2.182 mhz is Marine/Coast Guard HF Frequency
Steve
D
DaveNF2G
Guest
2182 is the international voice distress frequency.
OceanaRadio
Member
A real relic, as the mode shifted from AM to USB decades ago, and 2182 KHz ceased to be required-monitoring by vessels mandated to carry the Global Maritime Distress and Safety System, which took effect in 1999.
Shore stations still monitor 2182 KHz (USB) and make announcements for marine information broadcasts, notices to mariners etc, then shift to 2670 KHz in the US, and other working channels such as 2598 in various countries.
Jack
Shore stations still monitor 2182 KHz (USB) and make announcements for marine information broadcasts, notices to mariners etc, then shift to 2670 KHz in the US, and other working channels such as 2598 in various countries.
Jack
eorange
♦RF Enabled Member♦
I was wondering about that, knowing 2182 is USB but the data table says AM. But there are no obvious markings on the radio regarding the mode, so maybe it's a mistake...?OceanaRadio said:
I did find this ad where it states the R501 is "new" from 1985.
http://www.boat-world.com/boatads/708060902.html
OceanaRadio
Member
No it's not a mistake, all 2182 watckeeping receivers (and transmitters) were once AM.
The express cruiser my father owned in the early 60's through 1973 had a 100w AM/SSB marine transciever. We spent a lot of stormy summer nights copying MAFOR Wx reports throiugh the static-crashes on 2182 KHz to see when it would be safe to proceed. Along about 1970 or so, the VHF Marine channels were allocated, NOAA was born, and that left AM/SSB in the dust for recreational users, at least the ones who operated mainly within coastal waters.
Sometime in the 80's I think the ITU/IMO organized the MF/HF marine bands and made it entirely USB, no exceptions. Then perhaps as late as 2000, AM was still taught to USCG Radio Operators as a possible source of Distress-calling, and the older equipment (USCG Sunair GSB-900, aka AN/URC-116V) etc could shift to AM. I still see old literature that makes those references but AM was a relic for probably 20 or more years.
Brgds,
Jack
The express cruiser my father owned in the early 60's through 1973 had a 100w AM/SSB marine transciever. We spent a lot of stormy summer nights copying MAFOR Wx reports throiugh the static-crashes on 2182 KHz to see when it would be safe to proceed. Along about 1970 or so, the VHF Marine channels were allocated, NOAA was born, and that left AM/SSB in the dust for recreational users, at least the ones who operated mainly within coastal waters.
Sometime in the 80's I think the ITU/IMO organized the MF/HF marine bands and made it entirely USB, no exceptions. Then perhaps as late as 2000, AM was still taught to USCG Radio Operators as a possible source of Distress-calling, and the older equipment (USCG Sunair GSB-900, aka AN/URC-116V) etc could shift to AM. I still see old literature that makes those references but AM was a relic for probably 20 or more years.
Brgds,
Jack
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