Bob, I am not all that familiar with op amp's. Do you have a diagram of
something I can try to see if it works. The 1.5 KHz might be enough allowing
the controller to maintain the rest, won't know until it is all hooked up and
running. But in my thinking, 3.0 Khz would be much better, especially for
those of us that are soft spoken.
Mathew
Bob Dengler <[EMAIL PROTECTED]> wrote:
At 11/28/2006 12:31 PM, you wrote:
>I have taken a UHF transmitter and combined it with a VHF receiver for
>a crossband split. The very maximum deviation that I can obtain from
>the radio is about 1.5 KHz. This is with the pot turn all the way
>up. Mic high is being fed into a 1.0 MFD cap through a 15K resistor
>to the high side of the volume control. The audio is clear, just not
>all that loud.
>
>Mathew
I think the output Z of VOL/SQ HI is too high to use for direct feeding the
MIC HI input of the G.E. TX. In addition, you need to de-emphasize the
audio as the VOL/SQ HI audio is still pre-emphasized & the TX audio is also
pre-emphasized again. This means you need a buffer (op)amp to de-emphasize
the audio & drive the 600 ohm mic input.
Bob NO6B
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