1220 two meter power Control + audio mute for cell phone.

[kovar@ia.net (Jack Kovar KE0AX)]

        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".

                                                Thanks,
                                        
                                                Jack Kovar
                                                K0VAR

        

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