Paul,

Eleven years in a salt-air and lightning-prone environment is pretty darn
good!  I daresay the Super Stationmaster would not last that long.
Fiberglass vertical antennas can be permanently damaged when struck by
lightning, whereas the aluminum dipoles might shrug off such abuse.  At
least, that's been the experience at nearby Vandenberg AFB.

It is not clear from your post if you have established beyond any doubt that
it is the antenna causing your SWR problem.  Have you determined that the
feedline is not cracked or dented due to flexing, not worn through at some
point, no water in the line, center pin(s) haven't pulled out due to
elongation, no bullet holes, etc., etc.?

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright
Sent: Saturday, September 01, 2007 7:12 AM
To: [email protected]
Subject: Re: RE: [Repeater-Builder] Wal Mart effect makes it to the
Communications Hard (feed)-Line industry

Paul,

I have a DB224 at 1175 ft above ground 1/2 mile from the Gulf of Mexico here
in FL. Put up in 1996 and it is having serious problems, 2:1 SWR on the
ground. Think it is the salt air. The connections, on antenna and
connectors, were coated and sealed before install. Other services with
exposed dipoles have had the same problem here.

We have same antennas about 5 miles from the Gulf that last for years
although none past 20 years. Have seen about 5 of these replaced recently,
most VHF.

When I replace my DB224 I am going to a SuperStation Master fiber glass
pole. It is obvious the exposed dipoles have a survival problem in this salt
air.

I know what you mean about the fiber poles and lightning due to the
soldering connections. If top mounted would be reluctant, but have seen
these last over 20 years and still had plenty of life in them in some harsh
enviorments.

I like the DB224 with it squeeing of the pattern, but exposed dipoles can
have problems. Same with towers up north with ice falling off a tower.

73, ron, n9ee/r

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