Help please I recently purchased a K2/100 with a number of options including the KSB2 SSB adapter. (serial number 4000 plus) It was sold as a good working radio and it checks out ok at first glance. CW is working FB but the SSB is distorted with the MH-2 as it was set for this radio with the 5.6K resistor between pins 1 and 6 of mic jack. With the HC-5 Heil it sounds better but doesn't product the normal Christmas tree envelope on my scope. This is not an RFI related audio issue. It's the same sounding at low power (5, 10 or 100 w) or driving my KW amp
By reading through the KSB Operation Instructions it seems that I might need to tweak the BFO as a refinement. However I've found that SSBA and SSBC do not adjust with changes in settings. In fact, SSBA Level 1 mic gain is atten 10dB and no changes on the scope or sound in another receiver all the way up to Level 4. Compressor Ratios from 1:1 to 4:1 on SSBC show no changes to the envelop on the scope or sound on a second receiver. This test was conducted with both the MH-2 and HC-5 Heil but the Heil sounds much better. Both these mics work well on my K3 Maybe it's cockpit procedure. I may have missed some step in the menu configuration process. I need to get the basics functioning properly before venturing on into the BFO Optimization process that might clean up the muffled sounding audio on transmit. Any helpful ideas from some of you who've lived with K2's will be greatly appreciated. Thanks 73, John, W1QS e-mail: j...@hughes.net ______________________________________________________________ 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
