Dr. Werner Furlan wrote: > hi Wayne, > > thank you for your answer and suggestion but - the difference in > volume is > much less than 10db.
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). 73, Wayne N6KR --- http://www.elecraft.com _______________________________________________ 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
