The sensitivity may be adequate as a panadapter (but really only with the preamp on), but if you have ever tried to listen to a moderately weak signal with the audio output from PowerSDR-IF, it will be abundantly clear that more sensitivity is needed. PowerSDR has a very good synchronous AM detector, for example, so the combination offers listening opportunities the K3 does not yet have. I have also listened to DRM using the "Dream" decoder and finding that only the strongest of signals will decode properly.
Knut - AB2TC Jerry Flanders wrote: > > >> >>Don Rasmussen wrote: >> > >> > >> > I have the LP-Pan with recommended Creative Labs E-MU >> > 0202 and find this to be optimal, I mean no reason to >> > make a mod of any type to K3. If someone told you that >> > this must be done, I'd want to see why with my own >> > eyes before doing this job. >> > > > >>At 08:16 AM 8/22/2008, Bill W4ZV wrote: >>17.7 dB transfer loss from RF IN to IF OUT is why... > > But isn't that just an engineering design decision made by the > Elecraft team? Since that decision was (hopefully) made with regard > to the entire radio system, isn't that decision likely to be a good one? > > As one data point, my K3 is not modified, yet the IF panadaptor works > extremely well, and PowerSDR gives peak heights approximating the > true signal strengths seen at the input of the K3. When I feed in a 1 > uV signal from my KG-2 signal generator, I see a definite distinct > peak on the panadaptor, and when I feed in a 50 uV (S9) signal, I see > a large S9 signal on the panadaptor. > > I am a loss to understand why you guys are quarreling with the > Elecraft design in this instance. I am beginning to suspect that it > is simply because it does not agree with the usual designs provided > by some military contractors who are probably using an _arbitrary_ > "standard" anyway. > > <snip> > ----- AB2TC - Knut -- View this message in context: http://n2.nabble.com/K3-Buffer-Mod-tp741709p759729.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
