[RTTY] Fun, but

[Kok Chen]

On Mar 1, 2009, at 1:58 PM, Jim W7RY wrote:

> With today's modern rigs, there is no excuse for not using FSK.

And how would you do FSK with an ultra-modern SDR like the Flex-5000A  
that uses a quadrature sampling exciter?  FSK is so 20-th century.

FSK is a hardware kluge to shift a tone; and in many cases, with  
little control of the trajectory of the slew which, like the wave  
shaping of CW elements, ends up determining how wide your FSK  
keyclicks are.

(kluge - n. an ill-assorted collection of parts assembled to fulfill a  
particular purpose.)

73
Chen, W7AY