[Elecraft] Key Clicks

[John Simmons]

I have operated a number of the 'big' CW contests. I have heard some 
really, really wide sigs with horrible key clicks. Yes they were 
strong.... but 10 KHz wide? Rob Sherwood and others have written about 
this. Some of the really high-end rigs (non-Elecraft) allow user 
adjustment of CW rise time to such short values that key clicks are 
guaranteed. Yech!

-de John NI0K

Fred Jensen wrote on 6/6/2020 7:05 PM:
> True. TXDelay is a sequencing parameter to assure that downstream 
> switching has completed before RF appears. The keying waveform 
> [particularly the edges and "corners"] affect the sidebands and thus 
> bandwidth of the CW signal.  I don't believe QSK has anything to do 
> with it, at least for a K3.
>
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 6/6/2020 4:55 PM, N4ZR wrote:
>> There's a big discussion going on in contesting circles online about 
>> the problem of key clicks.  There's been a lot of discussion about 
>> settings called things like TXDelay, but so far as I can tell (and 
>> the manual confirms), the K3's TX delay is intended to protect 
>> amplifier relays at the start of a transmission.  So long as you 
>> don't run QSK, I would think that setting would have no influence on 
>> key clicks after the rise of the first CW element.  True?
>
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