Re: Fwd: sending computer morse?

Posted by Vic Rosenthal on Sep 27, 2012; 3:30pm
URL: http://elecraft.85.s1.nabble.com/sending-computer-morse-tp7563309p7563346.html

It depends a lot on what your computer is doing. For years I used DTR keying with N1MM and
a slow computer, and I couldn't understand why people claimed that there were problems
with this. But I never operate 'assisted' by Internet connections, clusters, etc. in
contests. So that may be the reason it worked as well as it did.

Anyway I recently got a Winkey USB, and was surprised at how much better the
computer-generated CW sounded! Also, the Winkey offers PTT switching that is smoother and
faster than the semi-QSK in the K3.

The one downside (for me) is that I absolutely /hate/ the stand-alone keyer function. I
just cannot send with it without making lots of errors, despite trying numerous settings
of the paddle sensing function.

I am used to mode B iambic keying, and I set all my keyers for that mode. The best one for
me is the Idiom Press Logikey K3. It is better than the internal K3 keyer, which is better
than the Winkey. So I still use the Logikey for my hand sending.

On 9/27/2012 6:48 AM, Don Wilhelm wrote:

> Keying via DTR or RTS will work with the simple transistor circuit, but
> it is subject to timing problems created by the operating system.  There
> is no way for an application to directly control a port, so the
> application has to pass the request to the operating system and then the
> operating system will control the port when it deems appropriate.  That
> may be OK at slow CW speeds, but the timing becomes more critical at
> higher speeds.  Enter the WinKeyer to solve that problem.
>
> 73,
> Don W3FPR
>
> On 9/26/2012 4:26 PM, Matt Maguire wrote:
>> You can do it cheaper by building a simple transistor circuit that allows you computer to key the radio via the computer's RS232 serial port. Not quite as good as a Winkeyer, but gets you on air very quickly so you can have a play.
>>
>> 73, Matt VK2ACL

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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