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On Aug 4, 2:36*am, m II wrote:
On Sun, 03 Aug 2008 12:26:26 -0700 Telamon wrote: This issue has a good antenna article on loop antennas but for some strange reason the author seems to think it is only a good AMBCB antenna. This antenna type is excellent for SW also. Depending on what frequencies you want to the antenna to operate on and the circumference of the loop you will not need a matching transformer. Closed loop antennas are generally superior in urban environments with local noise sources for a number of reasons. There is also a good article on propagation by Tomas Hood. Have you heard anything about those hula-hoop sized loops? If I can find a suitable tuning capacitor I might try building one. The directional abilities look useful. mike -- * *__ * *__ * *__ * *__ * *__ * *__ * *__ * *__ * / /\ */ /\ */ /\ */ /\ */ /\ */ /\ */ /\ */ / */ /\ \/ /\ \/This space for rent/\ \/ /\ \/ / /_/ *\/_/ *\/_/ *\/_/ *\/_/ *\/_/ *\/_/ *\/_/ * * * * * * * *Densa International_ * * * * * *'Think tanks cleaned cheap' * *Due to the insane amount of spam and garbage, * *I block all postings with a Gmail, Google Mail, * *Google Groups or HOTMAIL address. * *I also filter everything from a .cn server. * *http://improve-usenet.org/ Build you one Mike. You can't go wrong. Loops IMO are freeking killer- I only have loops for the BCB. For some some reason I just can't picture (even though I know it works) using a loop for shortwave. I have three of them and use two of them all the time- without them there is NO WAY I could have logged and received the verification reports I have. What type of capacitor are you looking for? I have one I am not using.....it's a good one- I forget the specs but I could find out. |
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