Mine has been up since 2005 in NM very similar conditions but with some ice
at 7200 ft. It has outlasted a Steppir and a Tic ring rotor. I also
agree with the SWR issues with wind. I built mine with the longer element
lengths but I have had amps kick out by SWR spikes due to wind at the
bottom of the band.
On Wed, Sep 5, 2012 at 7:06 AM, Steve London <firstname.lastname@example.org> wrote:
> I have had a 40M4LLDD up for over 5 1/2 years. No problems, mechanically.
> I live in a windy location (20 MPH every day, and up to 75 MPH every year),
> but no ice.
> One interesting issue is the SWR behavior at the band edges. If you look
> at the published SWR curves, you'll see that the SWR rises sharply just
> outside of the band. Those curves are correct for calm winds. However, even
> in a mild wind, the element spacing and shape change enough to push that
> knee of the curve into the band, resulting in high and varying SWR inside
> one of the band edges.
> Steve, N2IC
> TowerTalk mailing list
TowerTalk mailing list