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PURC 5000 Link Reciever

This forum is for the discussions targeted at converting various models of Motorola equipment to operate in the 900MHz Amateur Band.

Moderator: Queue Moderator

User avatar
bondo
Posts: 36
Joined: Fri May 24, 2002 6:00 pm

PURC 5000 Link Reciever

Postby bondo » Sat Jun 09, 2007 4:55 pm

Has anyone tried to recrystal the link reciever down to 902mhz and if so , Whats involved
and how was the sensitivity afterwards...

Or, does a converted 800 to 900 Maxtrac work better for the reciever ?

Thank's

Randy
N8VDS

n8obu
Posts: 93
Joined: Wed Nov 14, 2001 4:00 pm
What radios do you own?: more than i can list

Re: PURC 5000 Link Reciever

Postby n8obu » Sat Oct 13, 2007 5:00 pm

we use maxtrac around here i have 12 or more 900mhz purc recievers but after you spend 50 bucks for crystals and the wait maxtracs are faster and easier to setup hope that helps

flecom
Posts: 36
Joined: Mon Sep 12, 2005 6:38 am

Re: PURC 5000 Link Reciever

Postby flecom » Wed Jan 23, 2008 5:03 am

heh, wanna sell a purc reciever? :)

User avatar
bondo
Posts: 36
Joined: Fri May 24, 2002 6:00 pm

Re: PURC 5000 Link Reciever

Postby bondo » Wed Jan 23, 2008 6:13 am

NO
N8VDS

jstichte
New User
Posts: 3
Joined: Wed Feb 20, 2008 1:37 pm

Re: PURC 5000 Link Reciever

Postby jstichte » Mon Feb 25, 2008 11:13 am

All you need too do is change some capacitors in the multiplier stages and it will tune up with Good sensitivity .35 to .5 uv And have Good audio!
I done 5 or 6 if these receiver and all of them worked. These receiver are a lot better than a maxtrac a little more work!

User avatar
bondo
Posts: 36
Joined: Fri May 24, 2002 6:00 pm

Re: PURC 5000 Link Reciever

Postby bondo » Tue Feb 26, 2008 6:17 am

If you have any particulars on which components or diagrams I would be very interested...

Thank's
N8VDS

jstichte
New User
Posts: 3
Joined: Wed Feb 20, 2008 1:37 pm

Re: PURC 5000 Link Reciever

Postby jstichte » Sun Mar 02, 2008 10:39 am

Here is what I did to get the Micor receive to tune up (908) It will go down to 902. First my receive was on 929.xx mhz. I change 3 Cap's
In L101 was a 24pf >>> to 27pf
L102 was 33pf >>> to 36pf
L103 was 8pf >>> to 10pf this should get you up and going... if L104 & L105 do not tune right than

L104 was 2pf >>> 3pf
L105 was 24pf >>> 20pf that it. Make sour all cap's are NPO's

This receiver would open at .2uv and 20 db at .35uv... The manual you are looking for is (68-81063E10) Link receiver Options

Jim

n8obu
Posts: 93
Joined: Wed Nov 14, 2001 4:00 pm
What radios do you own?: more than i can list

Re: PURC 5000 Link Reciever

Postby n8obu » Sun Mar 02, 2008 4:34 pm

randy i have a stack of purc 900mhz recievers and if you want one contact me off board and the pin out is listed on the group website too n8obu
http://www.n8obu.com/

George
Posts: 257
Joined: Wed Apr 16, 2003 11:14 am
What radios do you own?: X9000, HT1550XLS, MTS2000, etc

Re: PURC 5000 Link Reciever

Postby George » Mon Apr 07, 2008 6:37 pm

I am assuming the PURC5000 link receiver is the Micor repackaged.

I sent in the channel element to International, popped it in and tuned it. Worked wonderfully.

zzzzzzzz George zzZZZZZZZZZZZzzzzzzzz insert sleep apnea herezzzzzzzZZZZZzzz wake me when I need to go home

jeronamo99
New User
Posts: 1
Joined: Mon Jun 30, 2008 6:37 pm

Re: PURC 5000 Link Reciever

Postby jeronamo99 » Mon Aug 11, 2008 12:25 pm

A 850 Mc Micro receiver helical can easially be changed to 902 by milling the internal rods ~0.1" thus improving the "Q" of the front end.
DS


bondo wrote:Has anyone tried to recrystal the link reciever down to 902mhz and if so , Whats involved
and how was the sensitivity afterwards...

Or, does a converted 800 to 900 Maxtrac work better for the reciever ?

Thank's

Randy


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