[Elecraft] 4.21 APF impressions

[Howard K2HK]

Been playing with the new 4.21 release for a few hours. My impressions of the APC  is it is an excellent addition to the CW op's tools. Smoothly boosts the weak signal out of the noise. Thanks to both Elecraft and the reflector members who pushed for this refinement. Although we might get tired of seeing similar posts urging a wanted addition it sure is beneficial when the results are like this one.

The only change I note on SSB is that I can turn my gain down to 5~6 with a Yamaha CM500(?) It was previously at ~19. One other note I can't hear any difference if I am using High or Low bias. Checked with monitor and DVR.

73,
Howard..K2HK