I would like some input from more technical inclined than myself.
Two issues in question:
1. Can I change the D15 zener to a different value to control
low power output? 1 watt at present!
I have some Motorola Vhf amps require about 2 watts drive for
60 watts out.
2. Q20 is a rx mute line for data interface?
I might have this backwards in application as follows:
Can I mute the speaker of tentec if I apply a ground or +12vdc
to pin 5 of packet/data i/o plug?
Reason: I have a ground output from cellphone to mute stereo and ?
when phone is "in use".
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