Ed, If you switch between different roofing filters, does the "sweet spot" occur at the same position of the "RF" Gain control knob or does it change? Also does the noise / S meter dip by the same amount regardless of which filter is in use, if not does the depth of dip increase or decrease when switching from a wide bandwidth roofer to a narrow bandwidth roofer?
On another reflector there has been some discussion about "pileup mush" which has been reported by only a small number of K3 owners, which problem IMHO could well be caused by some roofers and the termination presented to their output. Your observations of a "sweet spot" *might* be related. 73, Geoff GM4ESD (who must leave the List tomorrow!) On July 21, 2011 at 22:52 Z, Ed K7WIA wrote: >I don't know but I like it this way, as my noise floor changes through >the > day I do have to readjust the sweet spot, but it is just a very small > turn > of the RF knob.... > I checked this with the noise blanker on and off and I see the same > effect, > it's just with the blanker off I can only reduce it to 2 bars on the > meter. > could be I got a special K3.. > > Ed K7WIA ______________________________________________________________ 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
