I have used many of the DB408 & 420 antennas in the past and have never had a failure. That was back in Oregon and we used the antennas for the site RX Multi coupling and TX Combining system. We always used to make a slot for the hams to run through the combiners and had mo problems doing so. Since then I have moved to Colorado and out here there are a fair share of the DB antennas on the towers, however what I see most of is the Sinclair 4 bay loop antennas. I am going to take a NEW VHF loop antenna and on the other side I will be mounting the UHF loops as if they were on there own mast. I have herd many site guys doing this to cut down on the amount of antennas on the tower. If spaced properly away from the tower you should not notice any difference in the pattern. What I like with the Sinclair is the bandwidth that coverall all of the ham bands as well as the commercial bands. Makes for a broad antenna for the site combiner to use.
Mike K7PFJ _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of georgiaskywarn Sent: Saturday, August 02, 2008 3:25 PM To: [email protected] Subject: [Repeater-Builder] DB408 / DB420 in the ham band? (was Re: DB314) You gentlemen have really made me think about the pros / cons of the DB314. After talking with my tech partner on this project, I think we are going to go with a DB224 and DB408 or DB420 combo for the remote antenna. It really is overkill for a remote antenna, but since we will be given a Stationmaster with hardline already ran at the top of http://wireless2. <http://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=122476 > fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=122476 ....we have a brand new DB224 that would be laying around. Putting that DB224 on the tower would give us a backup antenna if something was to go wrong with the Stationmaster. We don't want to be too greedy with the footprint of this setup since we are already going to put up a DB420 for the UHF repeater. That is the reason for possibly looking at the DB408. I think I know the answer to this already...but is there ANYONE (commercial) that is selling DB408's or DB420's in the ham band? Thanks, Robert KD4YDC
