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On Sat, 28 Nov 2009 19:02:45 -0800, Jeff Liebermann
wrote: I did some cleanup, error correcting, and tinkering with the model of the MFJ-1800 2.4GHz Yagi-Uda antenna. Mostly, I tried to make the model as close to the original antenna as possible and recovering the macros to make it easier to tweak: http://802.11junk.com/jeffl/antennas/mfj1800/ The NEC2 file is under the "main" mfj-1800.jpg page. Cut-n-paste works. Data sheet, of sorts: http://www.mfjenterprises.com/Product.php?productid=MFJ-1800 Duz this construction look familiar? http://microblog.routed.net/2008/05/31/howto-make-a-simple-and-cheap-yagi-antenna-for-wifi-applications/ Note the driven element construction: http://microblog.routed.net/wp-content/uploads/2008/05/0531081411.jpg 10dBi gain without the necessary 4:1 balun. Oh well. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
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