Hello Brendan I don't have BC breakthrough here, but I do have a number of BC transmitters nearby, here on the edge of San Francisco Bay. I build my own preamplifiers with bandpass filters for 160m. I use them with my full size Flag receiving loop. They would also be appropriate for the K9AY loop. You might put together a simple two stage bandpass filter and try that in the receive feedline to see if it gets rid of the BC signals.
One other thought. If you have a signal generator, you might try slowly sweeping it across 160m to see if it beats with those signals. It might help determine what frequencies they are really on. Good luck and 73 Bob N6WG _______________________________________________ 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

