[Elecraft] K3 Received Signal Drops When Roofing Filter Switched In

[engineercm]

Thanks to all that pointed me to the filter gain settings accessible with the
Utility.  It was set at 2 db which is the recommended value in the K3
manual.  Now that I know where the parameter is, I'll experiment more with
weak signals.  The manual does not suggest going above 2 db claiming DSP
operation would be impaired in some way.  

I've also concluded that the sharp drop in noise when the filter kicks in is
to be expected.  I found the same instantaneous drop in noise with the 200
Hz filter is engaged.  Not at all annoying; I was just trying to understand
this marvelous radio. 

I'm primarily a CW op and will leave the Rx Eq set at +2db around the
sidetone frequencies and all others -10 or better.  That seems to suit my
ears and my current operating skill.  

73 de Clark WU4B



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