[Elecraft] K1 #2999 Receive seems a little quiet on 20

[Ron D'Eau Claire]

Typically, 20 meters has a much lower band noise level than 40. At my QTH in
the suburbs 20 meters is normally 1 to 2 S-units quieter than 40 meters.

On some rigs the bands may sound equally noisy because the AGC system raises
the noise floor to an equal level on each band. It all depends upon how the
AGC system is set up. 

For a good comparison, you might consider springing for one of the Elecraft
signal generators such as the XG2 or, for the most versatility the XG3. They
will provide a calibrated signal level that you can use for true
side-by-side comparisons of the receivers (the XG2 covers 80/40/20 and the
XG3 covers all bands from 160 through 2 meters). You can use them to
determine the approximate minimum discernable signal on any receiver for a
real useful number to use to determine whether a receiver seems "lacking",
but your observation that there are loud signals that really stand out on 20
suggests that your K1 is doing just fine.

73,

Ron AC7AC 

-----Original Message-----

I have a K1 with a 40/20 filter board. The receiver is much louder on 40.
The
signals just jump out with plenty of audio. On 20 the signals are not as
strong. Every once in while I will hear a strong signal on 20.
I suspect that 20 is just not as loud. I have made contacts on 20 to include
England. When I do a A/B receiver test with my Yaesu FT-450D, it seems like
they are in line.  Should I assume this is related to the bands being
different.

Still saving for my K2.. carrot estended slightly with the 40 dollar
increase.. I will get there

Thanks
73
k4YND

Don