[Elecraft] K2 Frequency Stability Data and AGC Action

[Jack Smith]

I've finished additional K2 receiver measurements and have posted them 
to my web site, www.cliftonlaboratories.com. Specifically:

1. Frequency stability from a cold soaked start (K2 left outside 
overnight, with a temperature low of 20 degrees F). This data can be 
viewed at http://www.cliftonlaboratories.com/k2_freq_stability.htm

2. AGC performance, a comparison of audio output versus RF input for the 
K2, the Drake R7 and the Racal RA6790/GM. This data can be viewed at 
http://www.cliftonlaboratories.com/receiver_agc_curves.htm. The measured 
data goes a long way towards explaining why a K2 receiver sounds 
"different" than many other receivers.

There's also an update to measuring AM modulation percentages and other 
things. The best way to find recent changes to my site is to start at 
the updates page. http://www.cliftonlaboratories.com/Updates.htm

Jack K8ZOA
K2 5689
www.cliftonlaboratories.com