Chuck is correct. The 413 is 18 ft 4 inches long and is rated 12 dB gain and rated to survive 1/2 inch ice at 90 mph.
The 411 is 9 ft 5 inches long , 9 dB gain 112 mph wind with 1/2 inch radial ice. The 408 is 6.6 dB gain and will survive with 1/2 ice at 85 mph. The 420 is 9.2 dB gain 18 ft 1 inch long and rated to withstand 70 mph with 1/2 inch ice. They are all good in my opinion. I have used them all including the DB-404 and they have survived the NE Ohio winters. even with the 420 top mounted on towers but there is a lot of flex at winds above 60 mph. I never had an antenna bend but did have on installation where the 420 was top mounted and the pipe that it was clamped to bent during a storm with gusts in excess of 70 mph. As far as which antenna to use - It depends on the installation, HAAT, top mount, side mount, omni pattern, etc. Rich WA8DBW http://www.wa8dbw.ifip.com ----- Original Message ----- From: "Chuck Kelsey" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, March 28, 2005 6:26 PM Subject: Re: [Repeater-Builder] A Good 440 Anttena > > I think my wife stole my Decibel catalog ;-) > > The 413 is 8 elements and the 411 is 4, right? > > If you're going to side mount on a tower, use either. If you're going to > top > mount, I prefer the shorter 411. The longer antennas have too much flex in > the wind to top mount, in my opinion. Others will disagree, but that would > be my choice. > > Chuck > WB2EDV Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
