[Elecraft] K3 Beta Firmware Rev. 3.68: Changes applicable to AGC OFF

[Wayne Burdick]

K3 beta-test firmware revision 3.68 (with DSP rev. 2.49) is now  
available.

This revision primarily affects those who turn AGC off. In the  
previous beta release (3.66), the new AF output protection feature was  
a bit too aggressive in the AGC OFF case, causing the audio output to  
occasionally become muted. The threshold has been moved up so that  
this shouldn't happen.

If you turn AGC OFF, you should also set up the AF limiter (CONFIG:AF  
LIM). (This limiter has no effect when AGC is on.) Recommended values  
are 18-24. Some experimentation will be necessary due to differences  
in headphones and user preference.

Please send any questions to k3support at elecraft.com. For instructions  
on how to load beta firmware, see:

      http://www.elecraft.com/K3/k3_software.htm

73,
Wayne
N6KR