Seems to me this wouldn't be too hard. Would need to switch the 4 control lines that pass between the 2 K2's and the KPA100/KAT100 combo via the I/O cable, and then switch the RF path between the 2 K2's and the KPA100/KAT100 combo. You would have to be very careful about the switch for the RF path to have sufficient isolation so that transmitting via one K2 will not damage or overload the receiver on the other. A more elaborate RF switch could be designed such that each K2 had its own set of antennas connected to it, and it would switch the KPA100/KAT100 combo in the path for 1 K2 and out of the path for the other K2 at the same time. Isolation would need to be checked either way. You might be able to use a simple 9 pin A/B switch intended for switching serial devices to switch the 4 control lines that pass between the K2's and the KPA100/KAT100 combo, and even the serial I/O signals as well if desired. I believe there is one spare pin that is not used by either the serial I/O and the K2 control lines that could be utilized to drive relays to accomplish the RF switching. Seems workable.
-Ben K1NT _______________________________________________ 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
