Tim, If you're just using it for control, you only need to receive on uhf. Just put up the 224 for the duplex vhf on the one feed line. Downstairs use a diplexer to pull off your uhf control receiver signal. It should work fine at that location. We used to have a short link path to a site like that for years. 73 Don W5DK
-----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of tahrens301 Sent: Tuesday, July 21, 2009 9:54 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: DB Products VHF & UHF on same mast? Hi Mike, It looks like this antenna is a DB-420B. It has 16 elements in groups of 2... 4 groups on the top 'half', and 4 on the bottom. I was thinking of using only 1 run of hardline up the tower & putting a duplexer up at the top (and one at the bottom). Thanks, Tim W5FN --- In Repeater-Builder@yahoogroups.com, "Mike Mullarkey" <k7...@...> wrote: > > If you have a VHF 224 just take a DB411 UHF and mount on the opposite side > of the mast 180deg from the VHF loops. We do it all the time out here and > works great. Just run two coax cables and all is nice and neat. Best of both > worlds, you get two antennas on the same mast without using another 10 or so > feet of tower space. > > > > There is only one catch, you may want to top support the DB224 antenna since > you are adding additional loops. > > > > Mike > > > > > > Mike Mullarkey K7PFJ > > 6886 Sage Ave > > Firestone, Co 80504 > > 303-954-9695 Home > > 303-954-9693 Home Office & Fax > > 303-718-8052 Cellular > > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of tahrens301 > Sent: Monday, July 20, 2009 9:11 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] DB Products VHF & UHF on same mast? > > > > > > I've got a DB-224 that is going up the tower in a > while when I get the hardline, but control issues > have changed from land line to 440mhz control. > > So I need 2 antennas. > > Today I saw a hybrid DB antenna, effectively a 224, plus > a 16 element DB, all on the same mast. > > Is this something that can be done without having each > antenna interact with the other? Sounds like a good idea > to me. > > Just curious, > > Thanks, > > Tim W5FN > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.392 / Virus Database: 270.13.20/2251 - Release Date: 07/20/09 > 18:29:00 > ------------------------------------ Yahoo! Groups Links
