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[TenTec] More on Keying Waveshapes (long)

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Subject: [TenTec] More on Keying Waveshapes (long)
From: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer)
Date: Thu, 07 Feb 2002 10:50:56 -0600
When you say "raised sine" function, you mean sine squared. That's
always 0 or positive, and so has no zero crossings at has a smooth
transition from constant value 0 to constant value 1.0000 through a
phase angle from 0 to 90 degrees. Though that's just a geometric
construction, there's no RF or audio phase angles involved. You can
change the rates of changes and the places of the curves by using higher
power than squared.

73, Jerry, K0CQ

Entire content copyright Dr. Gerald N. Johnson. Reproduction by
permission only.

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