Here's my wild guess, working without data. I suspect there are four
wires in the cable, colored black, white, red, and green. I suspect
black is ground for PTT, and white is PTT. Red is audio and green is
audio return. I'd bet that every 4 pin radio connector from Tentec has
had the same connections, which should be clear in the Arvo V manual
which I don't have. The connector itself is a common CB/ham audio
connector available in nearly every Radio Shack and many truck stops.
It could be that there are only three wires and a braid shield. I'd
expect the braid to be the audio return, black and white the PTT wires
(intended for black to be grounded) and the remaining wire, probably red
is the hot audio wire. The PTT wires may be inside or outside the braid.
There's less noise to the audio if they are outside the braid so the
braid makes the audio return, the shielded wire the hot audio and the
other two wires make the PTT. These connections have worked for many a
radio that I've known about in the past 55 years, but kid engineers can
come up with new almost workable schemes.
In past times, many a TenTec microphone came from ElectroVoice since one
of the founders of TenTec made his fortune at ElectroVoice.
73, Jerry, K0CQ
On 5/20/2010 8:02 PM, Jim Marco wrote:
Greetings.Does anyone know the correct color code wiring for a TT 708 mic to
a 4-pin connector for the Argo V (516) ?...The support folks at TT have no
idea and can't help me.Almost sounds like they farmed that mic out to a
third party.Any help would be appreciated.Many thanks.73.Jim WB2LHP
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