To: | <tentec@contesting.com> |
---|---|
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. |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | [TenTec] Omni 5 rit ????, LJL160@aol.com |
---|---|
Next by Date: | [TenTec] Re: Turns Counter for 238?, Nat Davis |
Previous by Thread: | [TenTec] More on Keying Waveshapes (long), George, W5YR |
Next by Thread: | [TenTec] More on Keying Waveshapes (long), Tom Rauch |
Indexes: | [Date] [Thread] [Top] [All Lists] |