hi Wayne, wayne burdick schrieb am 30 Jan 2009 um 13:29:
> Using the MAIN antenna for the subreceiver switches in a -3 dB pad, > which is required to split the path to the two receivers. This results in > about a 3 dB signal attenuation in both. This may be part of what you're > hearing. > > There also may be slight differences in overall path gain between the two > receivers, even when configured identically. Here are some contributing > factors: > > 1. band-pass filter alignment and losses > 2. 1st mixer loss > 3. crystal filter loss > 4. crystal filter ripple > 5. physical alignment of the SUB AF control (when used as main/sub > BALANCE) > 6. ears > > It's quite plausible that overall receive gain could, therefore, differ by > a few dB between main and sub receivers. > > You could use the K3's built-in true-RMS AF voltmeter functions to > determine the exact amount, on each band (AFV/dBV). I think I need some help with this. I have connected a noise gernerator to my ANT1 and I see AFV floating between 622 and 702 with SUB engaged, and 1578 and 1719 without SUB. (this was on 3.670 kHz) 73! de Werner OE9FWV -- Foreploy: Any misrepresentation about yourself for the purpose of obtaining sex. Email powered by Pegasus Mail free at <http://www.pmail.com> Homepage: <http://www.qsl.net/oe9fwv/> Fone +43 5522 75013 Fax +43 5522 75013 15 Mobile +43 664 6340014 Elecraft K2 #5203 K3 #656 _______________________________________________ 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
