Jim N2EY wrote :- >Most "other" rigs implement IF shift by an extra conversion step after the first fixed IF. This means there's a lot of gain and stages between the antenna and the sharp selectivity "knothole". No thanks.
IMHO, IF shift is of limited use in a CW receiver ...> More so in a contest situation. Our CW contest club (ZM1A) presently uses an ICOM 781 and a K2 in a Multi-One or Multi-Two category in many contests. These are rigs of choice because of problems with other rigs in the shack - phase noise etc. As the host I get to pass the sandwiches, pizza wedges and pour the drinks, so I have the opportunity to closely observe class operators like Jacky F3CW (ZL3CW) and Aki ZL1GO (JA4EKO) in action when they are running at 200+ per hour. They seldom touch the transceivers - very occasionally adjust the RIT and very seldom reduce the filter width, only because there is some adjacent and temporary QRM. The 781 has IF Shift - unused. Our K2s have KAF2 filters (sometimes used) . These ops have filters in their ears.<G> 73, Ken ZL1AIH _______________________________________________ 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
