Glen, NK1N wrote: I agree on the receiver sensitivity. I aligned my 2 band KX-1 with a -103 dBm signal. When I used a -73 dBm signal (standard S9), I got 4-5 bars on the S-meter for 40 and 20. Perfect! After building and installing the KXB3080 and doing all the RX alignments, I find the -73 dBm signal barely lights 2 bars on 20. Hmmm.
I expect the KX1 20m circuitry was compromised to pull it down to 80m. ------------------------------------- Just the opposite Glen. The receiver front end circuitry was redesigned to operate very efficiently across the 80-20 meter range. The original KXB3080 uses a simple capacitively-coupled input circuit. The KXB3080 mod replaces this with a transfomer-coupled input. I wouldn't suggest how effective looking at the "S-Meter" is for evaluating receiver performance. I haven't tried it. Running actual SN+N/N sensitivity tests, I found the end result was actually slightly *better* receiver performance on all four bands. Ron AC7AC _______________________________________________ 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
