Regarding the preamp: MDS measurements show a better (S+N)/N with the preamp on, approx 4 db improvement in MDS on my K3 on 40m. A similar improvement is obtained by setting the ATU to BYPASS.
The macro to toggle Preamp+Bypass is SWH19;SWT24; for anyone who wants to try it. It may be useful for weak signals. You do have to remember to toggle it (the ATU) back on when you transmit though. 73, Drew AF2Z On Sat, 19 Dec 2009 10:27:16 -0600, Ed W0SD wrote: > >It has been my experience over the years to "NOT" use the pre-amp on any >HF radio unless you are out of audio gain. The FT-1000D did not have a >pre-amp and the only place for me it was lacking was 10 meters. For me >I just don't hear more at 10 meters and down with a pre-amp. For me it >just brings the noise up with the signal. The only place I have seen a >big benefit from a pre-amp is above 28 mhz. Obviously the K3 benefits >from a pre-amp on six meters. > >Ed W0SD ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
