[CW] CW Duty Cycle Question

Pedro J. Santa [email protected]
Wed, 17 Mar 2004 01:38:30 -0400


You've all asked for this that.  Enjoy that this now!

73 KP3X...
----- Original Message ----- 
From: "Ken Brown" <[email protected]>
To: <[email protected]>
Sent: Tuesday, March 16, 2004 11:56 PM
Subject: Re: [CW] CW Duty Cycle Question


> Hi Mike and group,
> 
> Duty cycle for CW is pretty close to 50%. Since there is an interelement 
> space the length of a dit for every dit sent, that equates out to 50%. 
> Since most characters have only one dah, and there is a intercharacter 
> space the length of a dah after every character, that equates to 50% 
> duty cycle. If you send a lot of characters that have a lot of dahs in 
> them, the duty cycle will be greater than 50%. A string of zeros is the 
> worst case I can think of and that would still be less than 75% duty 
> cycle. This all assumes "perfect" dit, dah and space timing, with no 
> added weighting. Adding "weight" would increase duty cycle.
> 
> DE N6KB
> 
> 
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