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## [Towertalk] Re: [Force 12 Talk] XR dilemma

 To: [Towertalk] Re: [Force 12 Talk] XR dilemma k2av@contesting.com (Guy Olinger, K2AV) Mon, 24 Jun 2002 01:41:11 -0400
 ```Actually NOT. If you model it you will see that the pattern 3 db points on elevation are 15 degrees through 75 degrees with a very broad maximum around 40 degrees. Straight up is a minimum on the pattern. This is a GENERAL PURPOSE height that scales well to other bands. It will behave the same as a 75 meter dipole at 93 feet or a 40 meter dipole at 50 feet. Also kindly remember that the point of the post was comparing this antenna with a C31XR on 18.1, a frequency not in the C31XR design. I was not trying to specify the killer antenna for 17 meters, just emphasize the degraded idea of using the C31XR for that band. A 20 foot high backyard dipole for 18.1 MHz WILL beat trying to use a C31XR, particularly at the end of nearly 700 feet of coax as described by the original poster. Dipoles get a lot of bad press. They really are a solid simple antenna. When the scores are added up at end of the contest, a lid with a beam will be thrashed every time by a good op with a dipole. Biggest db's of all are between the ears. ----- Original Message ----- From: To: ; ; Sent: Sunday, June 23, 2002 7:29 PM Subject: Re: [Towertalk] Re: [Force 12 Talk] XR dilemma > On Sat, 22 Jun 2002 "Guy Olinger, K2AV" writes: > > > > You would do considerably better on 18 MHz to just cut an 18 MHz > > dipole and string it 20 feet up in the air. Signals are quite strong > > on 17 meters. > > > > At 20 ft, MOST of the radiated energy will pass into outer space. > > As most readers of TowerTalk know, I strongly recommend 40 ft > as the minimum height for effective coverage of the upper angles > supported by the ionosphere on the High Bands (20 through 10 M). > > Tom N4KG > > > > ________________________________________________________________ > GET INTERNET ACCESS FROM JUNO! > Juno offers FREE or PREMIUM Internet access for less! > Join Juno today! For your FREE software, visit: > http://dl.www.juno.com/get/web/. > _______________________________________________ > Towertalk mailing list > Towertalk@contesting.com > http://lists.contesting.com/mailman/listinfo/towertalk > ```
 Current Thread [Towertalk] Re: [Force 12 Talk] XR dilemma, Guy Olinger, K2AV [Towertalk] Re: [Force 12 Talk] XR dilemma, n4kg@juno.com [Towertalk] Re: [Force 12 Talk] XR dilemma, Guy Olinger, K2AV <= [Towertalk] Re: [Force 12 Talk] XR dilemma, n4kg@juno.com [Towertalk] Re: [Force 12 Talk] XR dilemma, n4kg@juno.com [Towertalk] Re: [Force 12 Talk] XR dilemma, n4kg@juno.com [Towertalk] Re: [Force 12 Talk] XR dilemma, Guy Olinger, K2AV [Towertalk] Re: [Force 12 Talk] XR dilemma, Richard Karlquist [Towertalk] Re: [Force 12 Talk] XR dilemma, n4kg@juno.com [Towertalk] Re: [Force 12 Talk] XR dilemma, Guy Olinger, K2AV