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[TenTec] fuzzy cw

To: <tentec@contesting.com>
Subject: [TenTec] fuzzy cw
From: paulc@mediaone.net (Paul Christensen)
Date: Wed, 31 Oct 2001 14:26:16 -0500
> I would rather receive well formed Morse code with a
> little chirp than some of the sloppy stuff I hear.
> Jim W7ANF

Although there is absolutely no chirp in the transmitted CW signal in either 
radio, one does hear a slight "fuzz" in back of what
would otherwise be a pure sine wave tone.   The effect would be approximately 
the same if you were to take a pure sine wave audio
generator and mix it together with a very low-level pink noise source.

On the receive end, you can hear the residual effect if you auto-notch the 
incoming CW note on your receiver.  What remains is the
pink-noise "fuzz."  Personally, I do not find the effect to be problematic: the 
keyed waveform of the Jupiter/Pegasus is the best of
any radio, including older Ten-Tecs.  Likewise, QSK is very fast and 
thump-free...although there's just a slight amount of T/R
clicking, noticeable only in the headphones.

-Paul, W9AC





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