[Elecraft] keying ration control

[Bob Nielsen]

Keying with the left foot will have the same pole changing effect.

On Apr 17, 2009, at 1:44 PM, Wes Stewart wrote:

>
>
> --- On Fri, 4/17/09, Steve Ellington <n4lq at carolina.rr.com> wrote:
> [snip]
>
>  The best antenna for CW is a Windom. The dits and dahs
>> automatically
>> flow to the appropriate side of the feedpoint which insures
>> proper
>> transmission ratio. Just be certain your Windom is fed at
>> the 1/3 point. If
>> both receiving and transmitting stations are using Windoms,
>> fading is
>> virtually eliminated.
>
> Only true if the two antennas are parallel to each other with the  
> respective side lengths matched.  Otherwise there will be cross- 
> polarization loss, which in theory is infinite, but in practice can  
> be 20 dB or more.
>
> In this case I use the same solution that was used by old Western  
> Union telegraphers.  This is a "Pole Changing" key that inverts the  
> characters, so dots became character spaces and dashes became  
> letter spaces, and vice versa.
>
> If both stations are in the same hemisphere, the receiving operator  
> will have to stand on his head if he's copying by ear, but modern  
> decoding software can handle this nicely.  (Perhaps this option can  
> be "put on the list" at Elecraft.) If the stations are located in  
> opposite hemispheres, this is unnecessary.
>
> My key, was made by J.H.Bunnell and given to me when I was a kid,  
> by a guy who had actually used it at W.U.
>
> http://chss.montclair.edu/~pererat/1458.jpg (Mine is in much better  
> shape)
>
> What a marriage; a 20th Century ham keying a 21st Century radio  
> with a 19th Century key and technology.
>
> Wes Stewart  N7WS
>
>
>
>
>
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