You have what were referred to as "Community Repeater" stations. Before LTR trunking and 800 MHz there were community or shared repeater stations everywhere used heavily by businesses small and large. There is a seperate manual addition which deals with this station. I'll check my files tomorrow.
Basically (going from memory) the discriminator signal leaves the RX and goes to the SQ gate and the Master Decoder. Based on which PL or DPL codes are activated on the Four User Modules the signal is either repeated or ignored. Usually the code that is received is transmitted, however it is possible via the Diode Logic and Multi PL or DPL encoder cards to translate the incoming code to another outgoing code. Milt N3LTQ ----- Original Message ----- From: "n9wys" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Sunday, July 27, 2008 7:56 PM Subject: RE: [Repeater-Builder] UHF MICOR Unified Chassis >I looked at 7 of the 14 chassis I have; the ones I looked at were *all* > TRN6421 - including those with what appeared to be the Zetron interface > wiring. > > The labeling for the card cage is as follows (again, listed from right to > left): > > TOT > STN CONT > SQUELCH GATE > SINGLE TONE DECODER > MASTER DECODER > FOUR USER CONTORL MODULE \ > FOUR USER CONTORL MODULE \ > FOUR USER CONTORL MODULE > Yes, 4 slots labeled the same > FOUR USER CONTORL MODULE / > DIODE LOGIC > MULTI PL ENCODER > MULTI DLP ENCODER > > Mark - N9WYS > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Joe Burkleo > Sent: Sunday, July 27, 2008 6:37 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Re: UHF MICOR Unified Chassis > > Mark, > I agree with Eric, you are aways away from cutting and hacking on > traces until we can identify exactly which backplane board you are > working with. > > Most of the time that I have seen the TRN prefix, it usually has been > tied to the PURC series of radios. Are all of your backplane boards > that you have, this same model number? > > On the backplane board what are the cards slots labeled as? Knowing > this information may help identify what the original station service > type was. > > Joe - WA7JAW > > --- In Repeater-Builder@yahoogroups.com, "n9wys" <[EMAIL PROTECTED]> wrote: >> >> OK - I'm now home from work and have had an opportunity to look at the >> station. The backplane has the following number printed on it: > TRN6421A >> >> Motorola parts identifies it as: BD INTCONN --- "*This item has been >> cancelled" >> >> This is all I can seem to find about it right now... >> >> And Eric, these are the manuals I currently have: >> Control and Applications Manuals: 68P81025E60-E and 68P81025E60-F >> MICOR Base and Repeater Stations Manuals: 68P81025E50-G (12W to 75W >> stations) and 68P81039E55-A (200W and 225W stations) >> >> Mark - N9WYS >> > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.138 / Virus Database: 270.5.6/1576 - Release Date: 7/27/2008 > 4:16 PM > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
