CW weight question

[Mike Herr]

CW weight refers to the balance between the single element length  (dit)
and the space. But, what is the elecraft definition of a "weight" of 1.00
verses 1.25? As weight is changed does the dit or the space change? Does
the ratio between dit and dah remain a constant 3:1?
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[Cady, Fred-2]

Hi Mike,
Here is what I know about the K3 WGHT:

CW Weight
The term "CW weight" can refer to the ratio of the dit-to-intersymbol-space time or the dah-to-dit ratio.  Altering these ratios changes the sound of the keying.  A "normal" weight is 1:1, where the time for the dit is the same as the intersymbol time and which gives a “normal” dah-to-dit ratio of 3:1.  See Figure 4 1(a).  When the dah-dit ratio is less than 3:1, the dits are emphasized and the keying is said to have a heavier weight, as in Figure 4 1(b).  The CW WGHT control for the K3S adjusts these ratios.  For example, if CW WGHT is 1.2, the dit time is increased by 20% and the intersymbol-space time is reduced by 20%.  The dah time is increased by the same amount of time (i.e.  20% of the dit-time, in effect, increasing the dah-time by only 20/3 = 6.67%).  See Table 4 2 and Figure 4 2.  
Figure 4 2 shows measurements of the CW WGHT for the K3S.  To send CW with a “normal” weight, choose CW WGHT to be 1.05.

(Figure and table references are for the K3S book.)
Cheers,
Fred KE7X

For all KE7X Elecraft book, see www.ke7x.com

________________________________________
From: Elecraft <[hidden email]> on behalf of Mike Herr <[hidden email]>
Sent: Sunday, May 1, 2016 1:19 PM
To: [hidden email]
Subject: [Elecraft] CW weight question

CW weight refers to the balance between the single element length  (dit)
and the space. But, what is the elecraft definition of a "weight" of 1.00
verses 1.25? As weight is changed does the dit or the space change? Does
the ratio between dit and dah remain a constant 3:1?
______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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