[Elecraft] [K3] VOX on the K3 - Smooth Voice Controller

Lyle Johnson kk7p4dsp at gmail.com
Thu Feb 21 13:18:43 EST 2013


The DSP Tx audio filtering adds a delay of 10 to 15 msec (I don't 
remember the exact value off the top of my head) but the VOX detector is 
before the filtering.  The net result is that very little, if any, of 
the first syllable is clipped when using VOX.

The monitor is derived from the 15 kHz IF within the DSP, which only 
happen when the radio is in transmit, so you can hear if any syllable 
truncation is occurring and adjust things accordingly. There is an menu 
option to bypass the 15 kHz IF demodulation for monitoring and just pass 
the audio through, but this is bypassed when you adjust mic gain or 
clipping so you can hear the effect of the adjustment.

73,

Lyle KK7P


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