Given what you need to do, I'd probably use a single element. The mast needs to extend above and below the ends of the element, the further you can, the better. I'd probably use a 20' schedule 80 aluminum pipe and center the element on it.
Chuck WB2EDV ----- Original Message ----- From: "Tim" <[email protected]> To: <[email protected]> Sent: Monday, August 30, 2010 2:51 PM Subject: Re: [Repeater-Builder] DB212-3 > I'm glad somebody brought this up. > > I've got 2 of the DB212 antennas, without any phasing harness. > > The tower that the repeater is going up on is 90', wide spaced triangular > tower (about 20' at the bottom & 8' at the top). > > I'm just wondering if the work in building the harness, building the > supports > (the tower is not vertical, so I will have to 'make' a vertical support > for them) > is really worth the effort for an additional element. > > Seems I saw that with the 2 element configuration you only get about 2dB > out of it. > > Doesn't seem like all the work is worth it. The reduced coverage off > the back of > the tower is not a concern. > > Just thought I'd throw this up into the wind. > > Thanks, > > Tim W5FN > > > ------------------------------------ > > > > Yahoo! Groups Links > > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3102 - Release Date: 08/30/10 02:35:00
