[MRCA] USCG 36-Foot Motor Lifeboat Radio

[Thomas Chirhart]

Considering that the 36 footers were in service for over 30 years I'm sure the HF radios were refreshed a couple times. In talking to the old Radiomen that served on the Great Lakes on the buoy snatchers (buoy tenders) they too used these radios, likely 4 channels since they were specifically assigned to a CG District and tied up at a CG Group or Station when not underway. Command and Control came from the District Operations/Communications Center. Ops would divert assets for SAR cases and had a District Common Channel (freq) and working channels. Most radio equipment was general military issue but some was built to CG specs. Collins R-389's were used for MF 500Kc and working channels, the Collins 651S-1 was used until 1987/88 when replaced by the Harris R-2368, still in use... CG Radio Station Galveston/NOY was closed and remoted to CG Radio Station New Orleans/NMG using a variant of the 651S-1. I'm interested in any CG equipment so if you have any drop me a line. 73 Tom K4NCG

Sent from my iPhone

> On May 28, 2014, at 7:10 PM, "Scott Johnson" <scottjohnson1 at cox.net> wrote:
> 
> I wouldn’t bet on that.  The USCG seems to have had quite a few different motor lifeboat radios in this time frame, the one I possess is an RCA unit with the transmitter and receiver one slide out decks, with c waterproof cover.  The radio can be remotely controlled, or operated locally (in fair weather).  It was made in 1936 and has a very low (S/N 18 IIRC).  Two 807s modulating two more, with 12V dynamotors for the RX and TX, tuneable RX with two crystal positions, TX is crystalled in two freqs, on fixed at 2182 and the other adjustable.  Covers 2-4 MC.
>  
> Scott W7SVJ
>  
> From: MRCA [mailto:mrca-bounces at mailman.qth.net] On Behalf Of Rob Flory
> Sent: Wednesday, May 28, 2014 2:00 AM
> To: Al Klase; mrca
> Subject: Re: [MRCA] USCG 36-Foot Motor Lifeboat Radio
>  
> A better picture of the front of the radio would be helpful, for comparison to Navy ones.  My money is on TRC-120 being different nomenclature for a set also used by the Navy, which may have been commercial in origin.   I can't make out anything other than a tag on an amorphous black box.
> 
> Rob
>  
> 
> On Tue, May 27, 2014 at 3:26 PM, Al Klase <ark at ar88.net> wrote:
> Gang,
> 
> A gentleman here in NJ has approached the Radio Technology Museum looking for info on the radio installation on this boat, especially the source of an antenna.  
> 
> <image001.jpg>
> 
> <image002.jpg>
> 
> Says "U. S. Coast Guard Radio Transmitter receiver TRC-120."  I'm pretty certain it's not AN/TRC-120.  The boats themselves date to the Pre-WWII era.
> 
> <image003.jpg>
> 
> Antenna detail.
> 
> Any help appreciated.
> 
> Al
> 
> -- 
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>  
> 
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