[TenTec] Fwd: Topband: More About Clix

[n4lq@iglou.com]

The most beautiful sounding cw note I ever heard was that of a Drake TR3. 
I can remember hearing it some 37 years ago! Just a few days ago, I heard 
one again and I was overwhelmed. One of these days, I'll buy one just to 
find out what the story is. I've hear lots of TR4's, T4X, Triton IV etc. 
They all sound excellent but nothing like that TR3. 

-----Original Message-----
From: "Paul Christensen" <paulc@mediaone.net>
To: <tentec@contesting.com>, "Duane A Calvin" <ac5aa@juno.com>
Date: Thu, 31 Jan 2002 07:17:34 -0500
Subject: Re: [TenTec] Fwd: Topband: More About Clix

> > Both the VI and VI+ reports show risetimes in the 2.0 - 2.5 ms range.
> > According to the QST reviews, both make statements to the effect that
> > this is "exceptional" or "excellent" keying waveshape.  Perhaps the
> > understanding of what is exceptional has changed because I note that
> Tom
> > Rauch, W8JI is saying 4-5 ms is considered the correct risetime.
> 
> Correct to the extent that CW bandwidth may be minimized.  I don't
> necessarily agree with Tom's view that the "correct" CW waveform is one
> in
> which the transmitted bandwidth is minimized by extending the rise and
> decay
> of the envelope and turning the wave edges into a sine-slope
> characteristic.
> The problem with Tom's approach is that in minimum signal conditions
> and at
> relatively high CW speeds, his preferred wave form becomes difficult
> read.
> In essence, the "correct" CW wave form is purely subjective.
> 
> My preference is for a fast leading edhe in the order of 1.5 mS, and a
> trailing decay in the order of 5-6 mS, much the same as is often shown
> in
> the older ARRL handbooks when grid-block keying is used.   This
> produces a
> percussive CW note with a slight "bell-sound."  No, it is not as
> spectrally
> pure as what Tom suggests, but the note is very distinctive and easy to
> copy.  A bit of extra bandwidth can sometimes be a good thing.
> 
> -Paul, W9AC
> 
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