[Milsurplus] [ARC5] 1625 and Key Clicks.

Kenneth G. Gordon kgordon2006 at frontier.com
Tue Jul 11 19:40:00 EDT 2017


On 11 Jul 2017 at 13:26, Dennis Monticelli wrote:

> 
> Good point, Ken.
> 
> My T-22 key clicks were being heard 15 mil away.

"Mils" or "Miles" ;-)

Anyway, that is too far.

>  I was running about 25 watts to a dipole. A 
> ham friend of mine notified me and complained that they were pronounced and could be copied all 
> over the CW portion of 40M.  He was right I looked carefully at the waveform of ARC-5 being 
> keyed and it was pretty obvious that clicks were being generated.  Whether they are bad or 
> tolerable in a given situation is a function of the sharpness of the keying edges and the strength 
> with which your signal is being received. Nobody is going to be bothered when you are S4 and the 
> noise floor is S3.  S9 is another matter. 
> 
> My osc runs continuously.  There was no alteration of note when the click filter was applied to the 
> PA.  Your results may vary.
> 
> Clicks are inconsiderate.  In my opinion they should be minimized.  Fortunately, it's not hard to do.

Well, I wouldn't consider them "inconsiderate": I consider them damned annoying and totally 
inexcusable.

Now, despite that statement, I DO know that there are certain strange propagation conditions 
which actually add clicks to a perfectly good signal. They almost sound like an echo, in fact.

I only wanted to make sure that anyone who "has" clicks, really does have clicks, since it is 
so easy to mistake other things for real clicks.

Ken W7EKB

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