APF ringing and over powering... I have had input from two Elecraft support fellows one of which was helpful. That being move the receiver off frequency (RIT) about 10Hz then adjust the APF center frequency to match. Some help - yes.
But... The Elecraft implementation of APF in MCU 4.22 just before the current MCU 4.25 needs more work. The APF in the IC-781 from 1988/9 is much more effective with plenty of gain without ringing. The FT-1000 (early production only) and IC-7800 APFs are better than the K3's. The Yaesu MP series I have to admit, is useless. Elecraft either needs to tweak it for perhaps less gain and a little wider BW or give the user the tools to do it ourselves. I hope the folks at Elecraft will put some attention to this feature. it can be a powerful tool. I still find it amazing that this little 9.5 pound K3 sitting next to my 52 pound IC-7800 and 51 pound IC-781 is as good and in some cases better than either of those radios. Also nice is power consumption - listening on the K3 consumes only 33 watts with an Astron SS-30 while the two Icom's consume 100 watts each. 73, Bob - W6OPO ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
