[Elecraft] K3 dbV in 2.38

[Lyle Johnson]

> Maybe dBv stands for dB "variable," not dB with respect to a volt.

Not with respect one volt, but voltage based, using the 20log rather 
than the power-based 10log conversion.

AFV is "AF Voltage" and corresponds to the voltage you would measure 
across the speaker with AF GAIN set to max.  Units are mV RMS, and 
over-range truncates the MSD in the display (but is still accurate, I 
think, over the serial port).

I no longer remember if this is with AF gain scaling set to H or L.

73,

Lyle KK7P