On Wed, 11 Jul 2001 K7LXC@aol.com writes:
>
> In a message dated 7/11/01 1:06:16 PM Pacific Daylight Time,
> K7NV@contesting.com writes:
>
> > Will overkilling the rotator make it last forever? Maybe, but
> probably not. This is educated guessing, to get a ballpark
>estimate on how large a chunk of the
> > "forever spectrum", the rotator gets to occupy.
>
> It's been my experience that the rotator is the weak link in the
> antenna system. While towers and other hardware will last for 15 years
> and more, a rotator has a practical service life of 6 or 7 years.
>
> Don't tell me about your Ham M that's been working since 1968 -
> you've been lucky.
>
> Cheers, Steve K7LXC
> Tower Tech
If I remember correctly, someone at Rohn told me the service
life of their towers was believed to be 40 years in a non-corrosive
atmosphere. Anybody else know / remember?
And yes, I have had 25 years of service from a reconditioned
HAM-M rotor, turning a Mosley 2L Quad and then a TH6. It
has recently stopped turning. I suspect some wires have
finally broken at the terminal strip but have not climbed up
to inspect.
Most of my early HAM series rotors with 'pot metal' gears
suffered from broken ring gears which have been replaced
with steel gears.
Tom N4KG
________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
http://dl.www.juno.com/get/tagj.
List Sponsor: Are you thinking about installing a tower this summer? Call us
for information on our fabulous Trylon Titan self-supporting towers - up to
96-feet for less than $2000! at 888-833-3104 <A
HREF="http://www.ChampionRadio.com";>
www.ChampionRadio.com</A>
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|