Dana, The answer is - 'yes' or 'maybe'.
You can use 'relay logic' to obtain many combinations with the KRC2. You can easily select up to 3 antennas per band using the AC1, AC2, and AC3 outputs. Using additional decoding logic of the ACx outputs can yield up to 8 combinations (but that takes external hardware). If you connect the + side of a relay to The AC1 SOURCE DRIVER, and the - side of the same relay to the 40 meter SINK driver, that relay will only be activated when both AC1 and 40 meters are selected. Similarly, connect the + side of another relay to the AC2 source driver and its - side to the 40 meter sink driver and that relay will only be active when both AC2 and 40 meters are selected - similarly for the AC3 output which gives up to 3 antenna selections per band. The outputs of the KRC2 can be "wire-ORed" together, and using both the source drivers (+) and the sink drivers (-) at the relays, some logic can be performed. This scheme can be extended and the 'logic' functions available can be expanded at length by the use of isolating diodes external to the KRC2. So the answer is YES - the KRC2 can be used to switch between multiple antennas for one band. I don't know if it will fully meet your needs, that depends on how many combinations per band you have to manipulate. A bit of skill with manipulating basic 'logical AND' and 'logical OR' functions is helpful to create what you desire. If you can describe your antenna switching needs in logic functions, the possibilities will become more clear. For the remote operation of the AC1, AC2 and AC3 outputs, I just don't know - perhaps Jack Brindle will answer that. 73, Don W3FPR Dana Roode wrote: > Greetings, > > Is there a way to select more than one antenna per band with the KRC2? > IE, I have a 40 meter 4 square and a dipole, can I automatically > select one when I go to 40 and still be able to select the other on > manual command? I need to do this remotely. > > Similar question, there are a few Aux outputs on the KRC2, how does > one control those remotely (that is, via the serial interface or some > other means)? I have to select directions on my 4 square, and switch > in and out a series capacitor on my 80 meter vertical for SSB. > > Dana, K6NR > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > 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 > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.10.4/1880 - Release Date: 1/7/2009 > 8:49 AM > > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
