[Elecraft] QSK THUMPS?

[Bill Coleman]

On Apr 27, 2010, at 8:07 PM, eric manning wrote:

> Now, My K2 has no such thumps; you can't tell when the radio switches 
> between T & R  by listening to the audio.
> The transmitted cw sidetone sounds just like any other cw signal, with 
> no thumps or other noise.

I'm curious -- what is the T-R setting on our K2 set to? 

If I set it to a high value -- say 150 (which I sometimes do when I'm using my non-QSK AL-80A amplifier), I don't get any thumps, but I wouldn't call it QSK by any means.

If I set the T-R setting to something less than about 8, I can start to hear some anomalous stuff -- some minor thumps, and if I turn it down lower, I hear more. At settings below 2, you can even get some off-frequency receiver response. (ie you'll hear adjacent signals while keying, which stops the minute you stop keying)

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
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