Thanks Skipp! I will investigate further. The one thing I don't have for this radio is a service manual. I will try to scrounge one up.
Thanks again! --- In [email protected], "skipp025" <skipp...@...> wrote: > > > > I replied to Jordan direct to say that I'll post some of the > answers over here for all to see. > > First off, deal with the tk-860H, which is different from a > tk-860g... and I believe the "H" is the higher power version > of the plain tk-860. > > The labels on the KCT-19 pins/wires will change but the PTT and > COR wires are KCT-19 pin 8 and 11 or 13. The function of the radio > cor out logic being tied to CTCSS and/or Carrier Squelch is > dependent on the specific radio. > > Some of the earlier 1995 era mobiles required a few internal > hardware changes to bring out a Tone Detected COR function > from the KTC-19 connector. Was not a problem in most all later > model radios... So I suspect you'll have to do a bit of minor > hardware modifications to change the COR output line from Carrier > Squelch to CTCSS activation. > > One application note I have here regarding pin 13 operation for > Radio COR Output: Solder the two anodes of D205 together to route the audio > mute signal out to the KCT-19 cable. Refer to page 55 of the Kenwood manual > for parts location. I suspect the pin 13 cor > output label is wrong and you should investigate using pin 11 as > the cor output as indicated on most other kenwood radio model. > > The TK-860H is an older radio and it's connection information > to external devices (the outside world) is a bit vague. You'd > probably need a Service Manual for that specific radio model to > sort out the proper CTCSS routed to cor output logic/wire > configuration. > > The TK-981 follows the convention of newer mobiles so its > COR should be tied to CTCSS. Otherwise post a want or email > me direct again. > > cheers, > skipp > > ps: I have a ton of message from group members I'll try to respond > back to asap... things have been nuts as of late, which I guess is > a good thing. > > > "J C" <jcarter@> wrote: > > > > I am looking to a pull tone-operated squelch logic on a TK-860H and a > > TK-981. The KCT-19, as many know only outputs carrier logic regardless of > > PL/DPL status. Has anybody got notes somewhere on where the best point to > > pull logic out for active PL? > > > > > > Thanks, > > > > Jordan > > >
