On 30m and below, the sub RX audio is much lower in level than the main RX. I am set up to use the "SUB" audio control as the "balance" control between the main and SubRX audio levels (SPKRS: 2, SPKR+PH: no, SUB AF: balance). Both receivers get their RF from the main antenna. On 20m and above, this works fine - adjusting the control to the 12 o'clock position "centers" the stereo audio image between the two speakers. On 30m and below, however, the sub RX audio is much lower - the "balance" control is at about 3 o'clock (ie, injecting a much smaller amount of main RX audio) to "center" the stereo image. Thus, I have to "ride" this control when changing bands.
I am using the latest "public" firmware revision, but I believe I have had this problem for some time. I did purchase "matched" filters for the main and sub RX's, and I have re-checked to ensure that they are set up with the same parameters. The state of the AFX control has no perceptible effect and I see that AF GAIN and AF LIM cannot be set differently for main and sub RX. Any thoughts on what is causing this? I don't see any previous mention in the reflector archives. Brian K1LI K3 #2435 -- K2 #2070 -- K1 #270 ______________________________________________________________ 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
