[aprssig] Kenwood TK-760H radios for APRS usage

Randy Love rlove31 at gmail.com
Fri Apr 14 10:27:51 EDT 2017

According to pg 20 of the Service Manual, these radio had an option for an
accessory cable.
If you wanted, you could make a cable for what you need and tack it to the
board points according to the Service manual. The PTT, GND, RXA ( DEO ) and
TXA ( DI ) are available via headers on the main board.

It would probably be easier to use the spkr and mic ports, but then you are
susceptible to someone turning the vol pot down and losing your rx.

I have a few of the in the UHF version, but haven't tasked them to any data
purposes yet.

Good luck es 73,


[image: Inline image 1]

On Fri, Apr 14, 2017 at 9:11 AM, Bob Burns W9BU <w9bu_lists at rlburns.net>

> Here's a link to a TK-860G service manual:
> http://www.repeater-builder.com/kenwood/pdfs/tk-860g-862g-svc-man.pdf
> The 860 was the UHF version of the 760. Mic connector wiring appears on
> page 47.
> I do not believe you will find RX audio on the mic connector, so you will
> need a pig tail to the speaker jack on the back of the radio.
> Pay attention to the pin number order as Kenwood sometimes counts the RJ45
> pins differently from the way network guys count them.
> Bob...
> On 4/14/2017 7:31 AM, Bob Harris wrote:
>> Our club was given 3 Kenwood TK-760H commercial radios (used) to adapt
>> for APRS support during a bike ride.
>> Has anyone used these radios for APRS? If so, any special considerations
>> or problems?
>> Is the microphone (they use the modular plug) wiring the same as the
>> Kenwood amateur radios? I have not been able to find any wiring diagrams.
>> --
>> "The world of goodness is filled with fleas."
>> Bob Harris
>> Can MOTCH Katmai Henry David Thoreau UDX Bda UD (1992-2005)
>> Longmeadow Bradford Torrey CD (2001-2014)
>> Ch Silvercreek Gossip Girl
>> Bath, NH
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