> But state of the art SDR designs like the Perseus manage to > achieve as good or better receiver dynamic range without all those > expensive > crystal roofing filters...
Dynamic range is part of the story. Look at MDS values for those high DR SDR receivers. High DR, BDR and IP3 figures are of little value in and of itself if MDS isn't also reasonable. 100+ dB DR does not guarantee good MDS figures. Every SDR receiver I've seen to date either needs RF pre-amplification (and all the warts that come with it) or better (and not yet available) performance from a demodulating sound card to achieve MDS numbers commensurate with many of the traditional architectures, including the K3. Paul, W9AC ______________________________________________________________ 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
