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## Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?

 To: navydude1962@yahoo.com Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees? n8de@thepoint.net Thu, 25 Aug 2011 10:24:38 -0400 mailto:towertalk@contesting.com>
 Quoting navydude1962@yahoo.com: > Also offsetting them minimizes the windload Oh, really? And you did what calculations to reach this conclusion? Windload depends on the direction from which the wind blows in relation to the position of the boom & elements. I have NEVER seen a calculation that says MINIMUM windload occurs when two antennas are offset 90 degrees WITHOUT specifying the direction of the wind relative to the antennas and what the windload is for EACH antenna at EACH different wind direction. 73 Don N8DE > > Sent from my iPhone > > On Aug 25, 2011, at 5:31, "Bill Parry" wrote: > >> I have a 2 element Cushcraft 40 M beam and a Force 12 C3 mounted at the top >> of my 120 foot tower. The C3 is at 120 feet and the 2 element 40 is at 132 >> feet. They severely interacted until I had the tower guy come back and turn >> the C3 90 degrees from the 2 element 40. Now there is little interaction >> and they both work fine. >> >> If I were you I would try it with both pointing the same direction but have >> in mind that you will probably have to make another trip up the tower to >> move the bottom antenna. >> >> Bill W5VX >> >> -----Original Message----- >> From: towertalk-bounces@contesting.com >> [mailto:towertalk-bounces@contesting.com] On Behalf Of Williams, Richard >> (OAG/CPG) >> Sent: Wednesday, August 24, 2011 8:58 PM >> To: towertalk@contesting.com >> Subject: [TowerTalk] Do I need to Offset Yagis 90 Degrees? >> >> I would rather point them in the same direction. The 2 ele for 40 will be 10 >> feet above the TH-11DX. Anyone have any experience with this? VE9HF >> _______________________________________________ >> >> >> >> _______________________________________________ >> TowerTalk mailing list >> TowerTalk@contesting.com >> http://lists.contesting.com/mailman/listinfo/towertalk >> >> _______________________________________________ >> >> >> >> _______________________________________________ >> TowerTalk mailing list >> TowerTalk@contesting.com >> http://lists.contesting.com/mailman/listinfo/towertalk > _______________________________________________ > > > > _______________________________________________ > TowerTalk mailing list > TowerTalk@contesting.com > http://lists.contesting.com/mailman/listinfo/towertalk > _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk
 Current Thread [TowerTalk] Do I need to Offset Yagis 90 Degrees?, Williams, Richard (OAG/CPG) Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?, bill Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?, Richard (Rick) Karlquist Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?, Bill Parry Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?, navydude1962 Re: [TowerTalk] Do I need to Offset Yagis 90 Degrees?, n8de <=