Others pointed out the reason - single conversion design. That single-conversion design is also what helps the K2's performance excel compared to those with multiple-conversions that allow for an "IF Shift" knob. Frequency conversions in receivers are like making copies in photography. You can go to great extremes to make each copy very high quality, but each generation degrades the image, just the same. In a receiver, every conversion degrades the performance, no matter how hard the engineers try to avoid it.
But all is not lost. You CAN do IF Shift with a K2 to a limited extent: I do. I assume you're talking about SSB since IF shift on CW is pretty meaningless. On SSB you have only one filter setting, so you have three more positions to play with. Select OPT1 for your filter for each FL setting, but adjust the BFO frequency as you desire to alter the position of the passband with respect to the carrier as you want. Then, if you want to shift the passband around, just punch the FILTER button so move to a different position. It will affect ONLY the received signal, since the K2 reverts to FL1 for transmit, no matter which FL position you're using for receive. Ron AC7AC -----Original Message----- Bit by bit I learn K2 is loaded with quality not commonly found in other HF ham gear. Why no ( real.. ) IF shift ? ( common in all " other " rigs , even my cheap FT-100's ). Peter, PE1E _______________________________________________ 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
