Shifting a constant carrier back and forth does not require linearity
in later stages - for the same reason that CW does not.
FSK goes back to at least the WW2 era. In the "olden days" class C
amplifiers were used for FSK.
Jerry W4UK
At 10:29 AM 7/22/2008, you wrote:
Why that - enquiring minds etc. ?
Simon Brown, HB9DRV
--------------------------------------------------
From: "Jerry Flanders" <[EMAIL PROTECTED]>
True FSK does not require that following amplifier stages be linear.
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
