Keith wrote: Also, the bandwidth of the tuned system has become much narrower. I used to get 2:1 bandwidth across most of the 40 meter band. Two nights ago, I struggled to get 2:1 over 90 KHz.
---------------- Narrow bandwidth is a sure sign of a reasonably efficient, but physically small antenna compared to the wavelength. That would cause me to look at something intermittent in the antenna itself that is disconnecting part of the radiator. You said it was a ground mounted vertical. Does it have any traps or other bits beyond a vertical radiator? I'd sure look for a connection that is opening up, as you mentioned. Possibly even an intermittent feedline connection to the antenna. Ron AC7AC _______________________________________________ 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
