don't quit the group elfa.

that question was very appropriate for rec.radio.sw

I have found this to be the best place to ask MW/AM radio and antenna
questions. Just ignore the reptiles that come out from under their
rocks. You have to sift and sort thru the replies, but there are some
very knowledgeable,helpful and friendly posters here. I have learned
a lot from them in the past several years.

73 Russ K3Pi