On Wed, 13 Apr 2005 02:50:19 EDT, [EMAIL PROTECTED] wrote: > In November 1989, "Radcom" published an article by Roger, G4PMK that > > expanded on Al's ideas with a practical version that would cover 1 - 90MHz > with a > logarithmic display, 50dB dynamic range and a built in marker generator.
I built one of these simple spectrum analysers, and it works well within it's design spec, however I find that I don't use it. This is because of the Wide Resolution Bandwidth, it is OK for harmonics and widely spaced spurious, but for in-close (<50kHz) measurements it does not cope. With DDS and support chips now available at reasonable prices it should be possible to produce a performance spectrum analyser (including good IF filtering) at a modest cost. How about it Elecraft ? 73 Stewart G3RXQ _______________________________________________ Elecraft mailing list Post to: [email protected] 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
