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TK-790h Programming Cable KPG-43

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totibross

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Dec 26, 2012
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I got this TK-790h and got it working after a few hiccups..
I know I should buy the cable to program the radio, but I'm cheap and I would love to know if someone can send me the pin-out diagram.
For what I've seen the 12pin Mic cable has only three connections.

I actually bought the USB version for this cable but it did not work. I have a good understanding on serial ports, so I think somehow the TK does not like this TTL usb connection

So the pin-out to RS-232 9 Pin would be great..

thx
 
Joined
Nov 7, 2013
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It has been a while but I seem to remember it not only being TTL conversion but also it carries data on one wire, so additional circuitry is required.


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mmckenna

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The issue is finding the 12 pin microphone connector…
Best thing to do is to buy an old microphone off e-bay and roll your own.

Pin 1 is at the 12 o'clock position, facing the end of the connector, the pin numbering goes around clockwise.

Pin
1 = Switched power
2 = Hook signal input
3 = Microphone Earth
4 = Microphone input
5 = Earth
6 = Transmit Data Output/Receive Data Input
7 = KVL
8 = Serial Data Input/Output for Keypad mic
9 = Mic Backlight control
10 = PTT
11= N/C
12 = Audio output for headset > 2Ω load.


KPG-43UM is the Kenwood USB programming cable.
 
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