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I'm summarizing from memory here, and adding in some of my own thoughts, so be kind to an old man? ;-)

Clicks are caused by lack of shaping in the side-tone generation. That requires an addition to code (by Hans), and will happen.

Thumps appear to be caused by changes in the supply voltage, when the transmitter is keyed, which changes the operating point of the audio chain (set by a resistive divider and 10uF capacitor). Some have reported that changing that cap to 100uF resulted in an improvement... (I recall that I suggested using the regulated 5 volt supply as a reference; that has pluses and minuses too.)

An implication of this finding is that a better regulated supply might lessen the thumps, certainly that poor regulation would enhance them! (Purely my conclusion, here!)

Some had noted thumps in practice mode, and I don't recall that anyone has offered a theory explaining that.

Hans has agreed that the thumps need to be fixed, but that getting the SSB code "feature complete" is his current focus, for the sake of efficiency. As a former SW developer, I can appreciate that staying focused on one task is more effective than time-sharing between several!

Anyway, my point is that the thumps haven't been ignored, and that there are several attacks that might lessen, if not cure, them. Not fair to accuse Hans of ignoring you or the problem, he isn't.

But he's only one person and he has other demands on his time. Seems to me a bit of compassion is required? There, but for the grace of God, go I...

73, Paul -- AI7JR

Hi Karol - I hope the issue remains on the table too, but it seems that the QRP Labs team is in product development mode - implementing SSB function - and this issue has dropped down off their list. ?It’s been raised several times in the group, but has never moved any closer to resolution. Again, maybe not enough of us are affected by it to develop a critical mass of concern for the development team? ?That’s a pity, because as you say, it would be nice to see the basic features implemented well and originally, I personally saw the rig as a CW operators dream. ?I saw SSB as a fun add-on feature, but one I’d personally never use - I have other SSB rigs for that. ?Obviously, everyone’s priorities differ and I do understand that there’s a big market in an SSB add on. ?Anyway, I remain hopeful that Hans will revisit the sidetone thumps and that one day and I can enjoy using my QMX on CW and not just digital modes (on which it performs brilliantly).

?

John

VK7JB

-- 
Paul -- AI7JR