[Elecraft] RXEQ for KX3

[Jim Brown]

I generally set RXEQ flat (no boost or cut) for general operation on 
mains power in both K3 and KX3.

BUT -- if you're going backpacking, you'll reduce battery drain a bit 
and increase audio headroom by setting the four lowest frequency bands 
for maximum cut. This does the same thing on RX that it does on TX -- it 
gets rid of low frequency components of voice that make no contribution 
to intelligibility but burn power.

73, Jim K9YC