[Elecraft] Fwd: sending computer morse?

[Don Wilhelm]

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
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