PRC-70

[MAB32]

I just got handed a surplus PRC-70 and do not know anything about it except that it looks like it could pick up the "mothership". Can anybody tell me where I can get some manuals and the schematics for it?

I also need the schematics for the PRC-77 too! Google is not my friend on this one. :confused:

Thanks

[BMT (RIP)]

http://www.thesupplybunker.net/Morrow/radio.txt


BMT

[BMT (RIP)]

AN/PRC-74
Radio set, Special Forces, 2-12 MHz, SSB, 15w (PEP), 10.5-17VDC or 12-31VDC, or 110/220VAC, battery operated from 70 BA-30 or 10 BB-418/U mil-type batteries, or from PP-4514/PRC-74 supply, variants AN/PRC-74B and AN/PRC-74C operate 2-18mHz, replaced by AN/PRC-70, Hughes.

BMT

[MAB32]

BMT,

Have patience with me please, but...

Hours of Operation:

36 hours with BA-1588/U (mercuric oxide battery) based on 1 minute
transmit - 1 minute receive and 8 minutes of standby (squelched): probably
much less with a NiCad battery (BB-588/U) but not stated.

does the above mean that both batteries should fit both the 68 and the 70?

[Jack Moroney (RIP)]

We had AN/PRC-70s and did not like them because they were not manually tunable for antenna loading so we shitcanned them for RACALs that we could manually load and tune for indoor antennas. They also provided them for us for UW ops without anyway to charge the batteries so we modified the old hand cranked generators to do that for us. We figured no one was going to fly in a frigging multi-million dollar aircraft thru worst air defense belt in the world just to give us a new battery. Looking thru my old notes the TM I have listed for this paper-weight is TM 11-5820-553-10. As I recall this thing has 21-42 watts hi power, 3 watts low power, CW, FM, FSK,SSB, AM and freq range from 2-75.99 MHZ. Weight was about 20 pounds, range 2500 miles CW, SSB, AM voice 500 miles. SSB/FM voice 25 miles, AM 15 miles, FM 15 miles. Of course my wizard 18Es could cut antennas that would milk the hell out of those rated distances. That is all I can recall from memory and some of my working notes. Hope that helps.

Jack Moroney-

[BMT (RIP)]

For the PRC-77 you'll need TM-11-5820-667-12

BMT

[FrankS]

Hey guys been a ham since 11 yoa love transmitters and equipment in general, if you guys are interested here is my ham site http://www.n6aq.com the guy that makes the buddy pole (Antenna) lives over on the Cali coast. I was surprised to read in one of the previous posts that you guy s are cutting antenna's figure you would be using a screwdriver type antenna for maximum band width and ERP. I had a communications business in the past with voter repeaters all that fancy stuff, went bye bye in a divorce LOLOL cela vie.. :D

Take care... Frank...