Paul, Yes, the IF notch is kept outside the AGC - loop. And I am with you on this. It would be so nice to have the notch inside the loop.
More than one reason for the notch outside the agc-loop have been communicated in this list. Summing up a few, but please let the experts help me on this: - A too strong signal cannot be handled well bij the A/D convertor so hardware AGC will have to kick in. This is , I think, a good reason, BUT only for strong signals. - Also increasing distortion is mentioned (IMD?) as a problem. Maybe so, but I feel that the AGC that decreases the volume of the whole signal is also a large distortion. I cannot tell what is worse and how much distortion would be audible if the notch was inside the agc-loop (except for the hardware AGC) - is there more? Anyway, the K3 is a fine rig in many things, but it is not an ideal rig. This notch-thing is one of the not ideal features. 73 Arie PA3A K3 #12xx Op 27-4-2012 8:10, paulb schreef: > The K3 notch filter appears to be after the IF system? > eg audio type notch, the S meter does not show any > signal change on steady carrier. > > Is this a big deal in the K3 ? > > > cheers > Paul > zl1ajy > > > ______________________________________________________________ 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
