Re: Topband: Back Scatter ?

Hi Bruce, Does the QSB vary regularly at say a 0.5Hz or 1Hz rate? Could it be another station on the channel that is not exactly the same frequency, not strong enough to deliver audio, but strong enough to create a sub-audible beat note? If it is irregular, shouldn't the traditional

Topband: Summer Stew KV4FZ

KV4FZ FG75 13 4 15 1 SA 1 1 True SHACK 1 FY5KE 20160618 231404 160M KV4FZ 1.82464 STEW-PERRY 1.82500 CW 599 599 KV4FZ GJ35 9 5 6 1 SA 1 1 True SHACK 1 VE3FAS 20160619 001702 160M KV4FZ 1.82464 STEW-PERRY 1.82497 CW 599 599 KV4FZ EN94 4 6 10 1 NA 1 1 True SHACK 1 G4ZCG 20160619

Re: Topband: best headphones for cw

On 19-6-2016 4:24, Paul Christensen wrote: After checking this evening, apparently Elecraft doesn't post schematics of their amplifier. It would be an interesting exercise comparing notes. I suggest you contact Elecraft directly. We broke down two KPA500's during the 2016 CQWW 160 on its PTT