The 756pro has no roofing filters, yet there is little or no AGC pumping when listening to an S2 signal with the DSP filter set to 500hz and a S9 signal is within the 15khz first hardware filter. I'm hoping the K3 can do at least this well without switching in a roofing filter of less than 2.7khz.
The TenTec Argo V will pump somewhat in the same scenario and pump very hard in a contest, at times swamping the receiver. It's a great radio for a quiet afternoon or contesting with modest antennas. The TS480Sat will pump dramatically and you need to leave the 500hz filter in line anytime there is an S9 signal within the 2.8khz ssb filter. The 500hz filter is superb for selectivity but adds a very high level of background noise when the bands are not quiet. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com

