Thank you for posting K9OM's comment. FWIW I have a Perseus and two other receivers which both use H-Mode mixers, one of which uses a version of PA3AKE's H-Mode front end.
With the Perseus used as a stand alone receiver, I have not experienced this "noise problem" in the presence of mild or quite strong static or manmade pulse QRN, UNLESS I wind up the Perseus' NR too far, then indeed there is some tunnel/ reverberation effect, which can at times be annoying. With the Perseus connected to the IF of either H-Mode receiver right after the first mixer, mainly for use as a panadapter, I very seldom use the Perseus' NR and then only at a low setting, and use the main receiver's LO noise blanker if required.. 73, Geoff GM4ESD On Wednesday, July 14, 2010 5:37 AM, RLVZ wrote: > Dick Van Zandt (K9OM) has sent you a forum message for you to review. <snip> > ALL the above radios except the K2suffer from the noisy front end problem > when mild QRN is around. It sounds like these radios have a reverb unit > on the receiver which multiplies static and pulse noise. > > Elecraft claims to have a cure for this problem, however I still find the > receiver noisy. The K2 I prefer over the K3 on CW when there is QRN > around. The filters on the K2 sound better on CW when there is QRN about. > > It amazes me every time that I turn on any of my old old analog radios > like the TS830S or the FT1000D and do a comparison. The QRN all of a > sudden becomes tolerable and not so nerve wrecking. > > The TS830S is still my favorite low band radio for picking weak signals > out of QRN on 160 and 80 meters. This is especially so when there is a > lot static and QRN around. > > Its unfortunate that there is no current model analog transceiver > manufactured that has fantastic receiver dynamic range numbers like the > Elecraft K3. The only option available is to build your own like the > PA3AKE H-mode mixer high performance receiver. > > http://www.xs4all.nl/~martein/pa3ake/hmode/ ______________________________________________________________ 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
