Hi Dave, Our PR10 preamp module has an MDS in the -143 to -144 range on 10 meters. It doesn't get much better than that on any ham transceiver. (Using it with a K3 requires a KXV3 or KXV3A module as well, since it gets patched through the RX ANT IN/OUT jacks.)
The stock MDS of the K3 on 10 meters is typically -136 dBm. This is consistent with a radio optimized for very high dynamic range. 73, Wayne N6KR On Oct 1, 2012, at 2:13 PM, Dave Hachadorian wrote: > During the CQWW RTTY Contest this past weekend, I got the feeling > that the K3 receiver could have used some additional RF gain. I > was using the 250 Hz filter with +4 dB of I.F. gain dialed in. > Switching the preamp on and off produced just a barely > perceptible change in the background noise. I seem to remember a > previous discussion about the need for a ten-meter preamp, but > haven't heard any more about it. Has anyone done a test to see > if the minimum detectable signal is up to snuff on 10? > > Fifteen meters was better, but still less than what I expected > when switching the preamp in and out. > > Dave Hachadorian, K6LL > Yuma, Arizona > > ______________________________________________________________ > 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 ______________________________________________________________ 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
