At 12/21/2004 03:13 PM, you wrote:
>Took the audio from the HI side of the audio pot on the MASTR ER41 receiver.
That's the right place. I believe that audio is pre-emphasized. Unless
you're feeding your TX audio directly to an FM modulator (leaving the audio
pre-emphasized through the controller), you'll want to de-emphasize it by
adding a 10 K resistor in series & 0.47 uF capacitor to ground after the
resistor.
Your audio level will drop after this mod. so you'll need to crank up the
RX input level at your controller to compensate. Your controller may also
have jumper or switch settings to do the de-emphasis there instead, so
check into that as well.
Bob NO6B
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