I need some help troubleshooting an issue. K2+KSB2+K160RX+KIO2+KAT2+K60XV+XV144+XV222+XV432+IMA rework module
I have not spent much time using this rig on SSB but I plan to use it to drive some transverters. So as part of the setup & checkout of the system I am noticing that my SSB power level seems pretty low compared to my CW power level. Specifically when I test my transverters I am getting my expected power on all of them with CW. (The transverter power level on each unit is setup for driving the input power level for the brick for that band.) 144: 25w CW --expected 222: 10w CW --expected 432: 10w CW --expected When I change over to SSB the power level is almost nothing (even with modulated CW) 144: 1-2w SSB --lower than expected 222: less than 1w SSB --lower than expected 432: less than 1w SSB --lower than expected Following Don's suggestion I tested the K2 independent of the tranverters & interfaces. (K2+20dB dir coupler+20dB pad) On 40m my Booton microwatt meter and oscope show that on SSB at peak I am only making about 50-60% of the power that I am on CW. (About 3 dB down) I have tried a couple of different bias approaches with the IMA rework module and the results are the same. (The recommend config is 10k which is where I started.) I am using an (older) Icom HM-36 mic (and have tested with two Heil headsets with similar results). The menu is set to SSBA=3 and SSBC=4-1 There are are probably some other folks using a similar mic configuration and I am curious what their experience has been. Maybe there is some guidance from the group based upon their experience. 73 de NG0R -- John Hoaglun NG0R - EN25 http://www.hoaglun.com ______________________________________________________________ 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
