[Elecraft] Uses for Programmable Function Keys

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PF-1 = Front Mic
PF-2 = Rear Mic
Each sets different gain & microphone level. Both have bias on.
George AI4VZ
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I have PF2 set to toggle SPKR+PH.
Chuck - AA3CS
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Does anyone keep a compilation of the various uses K3 owners have decided on 
for the two main
programmable keys - PF1 and PF2?  It might be interesting to see a list