Thank you Someone else can hear. I was beginning to wonder.
On Tue, 2008-07-08 at 12:18 -0700, K6JEK wrote: > It not just Jeff. I'm one of the guys who've been listening to the > various audio tests. We first noticed something funny in someone > else's 5000 before Jeff even got his. We ran experiment after > experiment. This guy finally returned his for a refund. Then another > fellow (not in the local rag chew group) broke in with his 5000 to > say he's just waiting for someone to figure this out. His 5000 had > the same problem. We've been listening and recording with a variety > of equipment ranging from 1000's to direct conversion home brews. > > It is subtle. It might be rare. But it is not unique to JCA > > I think Jeff's nailed it. The audio up through the driver stage is > perfect. It gets funky in the final. Why and what to do about it is > another matter. > > Jon > > On Jul 7, 2008, at 8:52 PM, Jeff Anderson wrote: > > > I agree, it's peculiar. But again - if it's a leveler issue (i.e. > > software) I'd expect to hear it at the PA driver, too. But I don't > > (but > > perhaps others do? Ref: 1st half of 6 July test). By the way, I > > just > > checked, and the Leveler has been OFF (box not checked) for all of my > > tests. The only TX effect I have enabled is TX EQ, which is set to > > the > > same EQ values for all of my tests. > > > > What I wonder is this: can distortion at RF (rather than at AF) have > > this same "soft compression" effect, after the RF is demodulated? > > > > - Jeff > > > > Frank Brickle wrote: > >> On Mon, Jul 7, 2008 at 7:30 PM, Jeff Anderson <[EMAIL PROTECTED] > >> <mailto:[EMAIL PROTECTED]>> wrote: > >> > >> > >> Frank, I agree, I'm sure the distortion is not in the ADC/DAC > >> components > >> (nor software, nor input stages) either, because I don't hear it > >> at the > >> 5K PA's *driver stage* output, which is well after the output DAC > >> (ref: > >> 1st half of 6 July recording). The problem only pops up at > >> the output > >> of the *final* stage. > >> > >> > >> What's peculiar about the compression is that it's "soft," not > >> clipped. You have to wonder about the leveler settings. > >> > >> 73 > >> Frank > >> AB2KT > >> > >> -- > >> "Sapristi nabolis!" -- Count Jim Moriarty > > > > _______________________________________________ > > FlexRadio Systems Mailing List > > FlexRadio@flex-radio.biz > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > Knowledge Base: http://kb.flex-radio.com/ Homepage: http:// > > www.flex-radio.com/ > > > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kb.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
