[MRCA] Retransmit: was MRCA Meet Recon Patrol Operations

[WA5CAB at cs.com]

I've not paid any attention to newer sets but AN/MRC-20 and AN/MRC-35 were 
Jeep or 3/4 Ton mounted HF/VHF/UHF (all AM) sets with simplex retransmit 
capabilities between any pair.  Radios were AN/ARC-3,8,27 but there was 
probably one using the equipment generation the thread has been mentioning.

In a message dated 08/26/2012 12:18:37 PM Central Daylight Time, 
w2hx at w2hx.com writes: 
> Al, here is a very interesting interconnection diagram on the back of 
> your C-7673/pcc-1 
> http://www.geocities.co.jp/Technopolis-Mars/9972/html/pcc1_2.html
> 
> 
> -----Original Message-----
> From: mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net] 
> On Behalf Of Al Klase
> Sent: Sunday, August 26, 2012 1:09 PM
> To: Gene Smar
> Cc: mrca at mailman.qth.net
> Subject: Re: [MRCA] Retransmit: was MRCA Meet Recon Patrol Operations
> 
> Gene and the Group,
> 
> I have one of these as well, came along with the duplexer.:
> http://www.murphyjunk.bizland.com/imagelib/sitebuilder/misc/show_image.html
> ?linkedwidth=actual&
> linkpath=http://murphyjunk.bizland.com/sitebuildercontent/sitebuilderpictures/PCC1UCD.jpg
> <
> http://www.murphyjunk.bizland.com/imagelib/sitebuilder/misc/show_image.html?linkedwidth=actual&
> linkpath=http://murphyjunk.bizland.com/sitebuildercontent/sitebuilderpictures/PCC1UCD.jpg>
> 
> Thanks for the nomenclature, Dennis.  This should eliminate the CX-4656, 
> and power two PRC-77's from a single source, including 117 VAC.  I'll 
> retrieve this stuff from storage.  I should have at least on extra
> PRC-77 or equivalent, like a 628K1.
> 
> If you really want to play with field phones, I have a small collection, 
> including an SB-22.  I never thought anyone cared.  :-(
> 
> Al
> 
> On 8/26/2012 12:46 PM, Gene Smar wrote:
> >Al et al:
> >
> >     Here's a link, I think, to the duplexer you describe: 
> >http://www.prc68.com/I/CU2194.html .  It's just an antenna duplexer 
> >that permits one antenna to be used simultaneously with two PRC-77's.
> >The freq sep required is 3 MHz.  It does not, however, provide the 
> >connections that permit one -77 to retransmit the audio of the second 
> >and VV.  For that you would need the CX-4656/GRC cable harness, below.
> >
> >     Also, if we did set up the two 6M freqs and retransmit each to the 
> >other, we'd have to make sure that the two groups of stations, one on 
> >each freq, could hear each other.  Otherwise, there may be some 
> >stations that could be heard (and retransmitted) by the repeater, but, 
> >because of their low-lying location, might not be heard by other 
> >co-channel (e.g., 50.4 MHz) stations nearby.
> >
> >     To try this mode at GIlbert we'd need a couple of good -25/-77s 
> >plus bunches of other frequency-agile radios that can move to channels 
> >other than 51.0.  I have one -25 that I usually bring.  ANyone else?
> >
> >
> 
> --
> Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480