While the figures are excellent, I suspect Elecraft will want to do better. A dynamic range of 101 dB at 2kHz is remarkable.
I am surprised a crystal filter can take the power for a 140 dB blocking dynamic range. The post mixer amplifier must have been very difficult to design as I recon it would be producing nearly a watt under those conditions. I wonder if it is physically possible to do anything about the far out dynamic range beyond 10kHz which is a "mere" 104 dB. We already know we want 140dB to cope with 40m broadcast signals from 7.1-7.3 MHz and while the phase noise is an issue, a narrow band LC filter in the IF in front of the crystal filter may help a little. Maybe an LC notch filter to put on the strong broadcasters? Mike Gary W. Hvizdak wrote: > > See http://www.sherweng.com/table.html > > _______________________________________________ > 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 > > -- View this message in context: http://www.nabble.com/K3-Tops-the-List%21-tp15526230p15541784.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
