CP-34 (AN/PRC-514) info wanted

rjtoegel · #1 28-12-08, 07:31

Can anybody point me in the direction of a circuit diagram or crystal information for a CP-34 (AN/PRC-514). I recently aquired one and am trying to get it operational on the amateur bands. Thanks in advance, Bob

Bruce MacMillan · #2 29-12-08, 17:03

this guy sells the service manual:
http://www.ve4lr.com/marconi-manuals-hf.htm

Gordons · #3 31-12-08, 03:39

check with Jon Skagfeld MLU member, collects all sorts of radio's, I have used www.conceptionrb.com in Quebec, excellent people, attention Richard Bourbonnais, he stocks parts and his prices are very good.
cheers

rjtoegel · #4 31-12-08, 06:55

Thank you very much. You both were a lot of help. I knew the info was out there but I was just looking in the wrong places (except for here). Hope to get this little beastie on the air soon. Bob WA2EGP

Jon Skagfeld · #5 03-01-09, 05:21

Stand by, wait out, Let me prowl around downstairs for my manual. I have one of these beasties, but I don't think you're gonna have any luck on authorized amateur bands. They're crystal controlled, way down below 2 m.

Gimme a day or two and I'll get back to you.

Thanks to Gordons for the forwarding reference.

73 de VA3 CIC.

Jon Skagfeld · #6 04-01-09, 01:39

Quote:

Originally Posted by Jon Skagfeld

Stand by, wait out, Let me prowl around downstairs for my manual. I have one of these beasties, but I don't think you're gonna have any luck on authorized amateur bands. They're crystal controlled, way down below 2 m.

Gimme a day or two and I'll get back to you.

Thanks to Gordons for the forwarding reference.

73 de VA3 CIC.

I have the CP-34 manual in front of me. There are many schematics. I'm prepared to photocopy and forward to you, but the www.conceptionrb.com looks like your b est bet. That site is quoted on the front page of my manual. If you contact them, quote the CP-34 Service Manual, 919 796400 001, Sep 75.

BTW, the crystals that are installed in my set are nowhere near any Amateur Band Plan spectrum. They are 4.230, 5.735, 6.873, 5.396, 5.856 which are, in order, Maritime Mobile, Aero Mobile, ISM Fixed Secondary, amd Fixed Mobile except Aero.

I earlier said that the xtals were way below 2m...I'm wrong there, but it appears in any cse that the xtals available aren't for Amateur RadOps.

HTH, Regards

Regards

rjtoegel · #7 15-01-09, 04:48

Thanks for the web site. I couldn't get to order for some reason but I sent a message to his email (and a PayPal). Seems that email is not functional anymore. I recently found another email for him so I'm going to try again. Good thing I'm not in a hurry.

Bob

rjtoegel · #8 15-01-09, 05:31

I would pay for photocopying costs and shipping. I am trying to get a manual from another source but a duplicate wouldn't hurt.

Mine also has crystals in the 5 MHz range but since it goes 2-12 MHz, it should cover a the 75, 60 and 40 mtr bands with the proper crystals and interconnections. It should go anywhere in that range. The US also has a 60 mtr channelized band so the easiest "conversion" would be to that band (it's also USB there so any CP-34 should work there). With a manual, it would be easier to figure out the crystal frequency if it is a single or double conversion unit or whatever. Plus the different interconnection (for lack of a better word) areas are a little hard to figure out.

Bob

rjtoegel · #9 22-02-09, 08:19

I did finally get in contact with conceptionrb and got the manual. I don't know what the problem was before. Anyway, since mine is USB only, I can get on the 60 meter (it is already crystaled for frequencies in that area) and if I push it (or get the 18 MHz mod) I might get it on the 20 meter band. At least I have a start. Thanks again for all the help.

Bob

Bruce MacMillan · #10 22-02-09, 12:13

you might also want to consider 3996 khz USB. We have a military radio net Wednesday nights at 2000 hrs PST (0400Z Thursday) on the west coast. There is also one starting on the east coast, same freq, 0300Z Thursday.