[Elecraft] K2 noise blanker

[Ron D'Eau Claire]

Sometimes turning on the preamplifier makes a world of difference, even when
low threshold is selected. I realize that the preamplifier is not needed on
the lower frequency bands and normally would be turned off to preserve the
dynamic range of the receiver. But this is a case where raising the overall
signal levels above normal helps the  KNB2 to suppress the noise much
better. In my experience it often brings otherwise inaudible stations up to
Q5 copy.

I've not been following the thread. My apologies if others have already
mentioned this. 

Ron AC7AC

-----Original Message-----
Many thanks for all the suggestions!  Since it is easier and quicker to take
the radio to a dimmer switch than it is to remove the covers and scratch the
top of a transistor, I shall do that first!

I am beginning to think that I was expecting too much from the circuit, and
that being elecraft it would somehow squeeze the laws of physics a bit!

73 Stephen G4SJP