Don .. I realized that as I was redoing the adjustments one more time -- no separate S-meter adjustments for the Sub. I'll start from scratch.
But the results do seem a bit odd. As it now sits on the Main (and this is after mistakenly tweaking S_meter cal on the Sub), a 50uV signal yields an S-7 with preamp off and S-9 with preamp on, with the meter in Nor mode. In Abs mode, I see S-7 with preamp off and S-6 with preamp ON. It's certainly possible (most likely?) that there's a cockpit problem here, but the results I'm getting don't look right. Prior to all of this, there was no change in S-meter reading when activating the preamp in "abs" mode. Grant/NQ5T On Nov 4, 2009, at 3:58 PM, Don Wilhelm wrote: > Grant, > > Re-do the S-meter Cal on the main receiver. There seems to be some > confusion on this topic, but there is only *one* set of S-meter > calibration settings (at least that is the way it is right now). So > when you thought you were calibrating the subRX S-meter, you likely > messed up the settings for both the main RX and the sub - I can't > say for certain but I think it has something to do with the 3 dB pad > and athe variety of ways to connect the subRX antenna.. > > 73, > Don W3FPR > > Grant Youngman wrote: >> Did we ever ever get anything final on the "subtle bug" that may >> have created a problem with RF Gain calibration in the Mac version >> of K3 Utility? >> >> I used the new test version sent out a few days ago, calibrated to >> an XG2 on 20M. Didn't have to adjust S-Meter cal on the Main >> receiver, but did cal the Sub S-Meter, which I'd ignored up until >> now. All seemed well, until I powered on the K3 today, and >> noticed what seemed to be "scotch" S-Meter readings. A recheck >> with the XG-2 shows only about S-7 with the 50uV test signal. >> >> Grant/NQ5T >> ______________________________________________________________ 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
