[Repeater-Builder] Re: Micor PL encoder modification (TLN5731A)

2010-05-04 Thread ve3hxp 
Hi Paul,  I modified a non-unified chassis 5 years or so ago. I wanted to 
disable the tone during cw id, so I used a small reed relay and broke the pl 
audio right at the input on the exciter board. I believe all I did was to put 
one end of the relay to 12 volts and the other end to a diode or gate. I don't 
quite remember how it went all together. I'll see if I can find the 
documentation and let you know.

HTH
Sean ve3hxp

--- In Repeater-Builder@yahoogroups.com, N1BUG p...@... wrote:

 I'm guessing I am not the first to want to do this...
 
 I want to use a UHF Micor for a link. I want to be able to stop the 
 PL encode immediately when a user unkeys, but I want the controller 
 to be able to hold the transmitter up (without PL tone) for sending IDs.
 
 There appears to be no PL on/off gate on the TLN5731A encoder. The 
 only tone gate is Q703 which only gates the out of phase tone used 
 for reverse burst.
 
 Other than using a mechanical relay to interrupt the encoder tone 
 output, any suggestions?
 
 Thanks,
 
 Paul N1BUG

Re: [Repeater-Builder] Re: Micor PL encoder modification (TLN5731A)

2010-05-04 Thread Captainlance 
On the encoder board, directly under the reed socket is a molex-type pin. 
grounding that kills the TX pl...( as with the factory paging option)
Lance N2HBA
  - Original Message - 
  From: ve3hxp 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Tuesday, May 04, 2010 9:02 AM
  Subject: [Repeater-Builder] Re: Micor PL encoder modification (TLN5731A)



  Hi Paul, I modified a non-unified chassis 5 years or so ago. I wanted to 
disable the tone during cw id, so I used a small reed relay and broke the pl 
audio right at the input on the exciter board. I believe all I did was to put 
one end of the relay to 12 volts and the other end to a diode or gate. I don't 
quite remember how it went all together. I'll see if I can find the 
documentation and let you know.

  HTH
  Sean ve3hxp

  --- In Repeater-Builder@yahoogroups.com, N1BUG p...@... wrote:
  
   I'm guessing I am not the first to want to do this...
   
   I want to use a UHF Micor for a link. I want to be able to stop the 
   PL encode immediately when a user unkeys, but I want the controller 
   to be able to hold the transmitter up (without PL tone) for sending IDs.
   
   There appears to be no PL on/off gate on the TLN5731A encoder. The 
   only tone gate is Q703 which only gates the out of phase tone used 
   for reverse burst.
   
   Other than using a mechanical relay to interrupt the encoder tone 
   output, any suggestions?
   
   Thanks,
   
   Paul N1BUG