Tony, Please pose your questions about tower loading to the manufacturer of your tower. Make certain you have the exact wind area and weight data for your antenna (not estimates or opinions) before you call Trylon.
The Ringo Ranger is an extremely poor choice for a repeater antenna. Choose something better- much better! 73, Eric Lemmon WB6FLY -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Tony VE6MVP Sent: Monday, June 23, 2008 7:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Reasonably low wind load antenna Folks We're moving a VHF amateur repeater to a 96' Trylon self supporting tower. The overwhelming opinion is that our current 210C4 four bay folded dipole would be too much of a weight and wind load for that tower. One comment has been the Ringo Ranger. The wind load of the Cushcraft Ringo Ranger II ARX2B http://cushcraft.com/comm/support/pdf/RINGOS%20AR2%206%2010%20ARX450%20220B% 202B.pdf <http://cushcraft.com/comm/support/pdf/RINGOS%20AR2%206%2010%20ARX450%20220B %202B.pdf> is 0.5 square feet. The windload of the Sinclar SD214 http://www.sinclairtechnologies.com/catalog/resources/pdf/SD214-HF2P3LDF(D00 S-LSABK)-DI.pdf <http://www.sinclairtechnologies.com/catalog/resources/pdf/SD214-HF2P3LDF(D0 0S-LSABK)-DI.pdf> (newer model to 210C4) is 5.57 square feet. Although the ice area is 17.04 sq ft. The SD214 has a dbd gain of 7.2, dbi of 9.3. The Ringo Ranger has dbi gain of 7.0. However the coverage plot in rural slightly hilly Alberta isn't all that much different. What would be suggestions for an alternative? Comments? Thanks, Tony (rapidly learning lots about towers and repeaters)
