What type of antenna are you using a yagi or panel, what was your signal
strength at install. Yagis, particularly the 17db by M2 is sensitive to
snow/ice build up,it gets slightly detuned, their 14dbi antenna does
better under those conditions. Panels of course are pretty much immune
and I have heard but not tried some of the grids, but most don't have
the performance of the M2. We found if the snow was wet and heavy
enough will accumulate on trees, pines are the worst. We have seen
drops of 10-20dbs with yagis and wet snow. The last people to recover
were the one with a pine shelter belt. The only other possibility is
water/ice intrusion in to a poorly sealed connector. If you are using
the 3006 out door unit this is all a moot point and it is simply a heavy
wet snow load that is causing the problems. I've been doing WR for
almost 5 years so let me know if this does not help.
Erik
Mark Koskenmaki wrote:
I put in a customer's CPE just as the snow season started at my customer's
house in the mountains. They had around 2 inches of snow on the ground,
and of course, some clung to the trees.
They were gone for Thanksgiving weekend, and when they got back, it was a
few days before I could get back to finish up inside.
When I left, we had a nice solid link, though it went through quite a few
trees right by the client end, at a total distance of about three miles, but
the sky visible through the trees we had to run through.
When I got back yesterday, we can't even see the AP on a site survey.
The only difference is that now there's maybe a food of snow and of course,
somewhat more stuck to the trees.
Client and AP are both WAR boards with SR9's and 9 db yagi's.
Does snow block 900 that effectively? Our testing showed earlier that in
town, you can get a weak signal with a site survey even standing on the
ground, through a mile or more of houses, trees, etc.We tried re-aiming,
but nothing.
Did I have something else go wrong, or does snow clinging to a few branches
totally wipe out an additional 15 or more db of RSSI?
+++
neofast.net - fast internet for North East Oregon and South East Washington
email me at mark at neofast dot net
541-969-8200
Direct commercial inquiries to purchasing at neofast dot net
--
WISPA Wireless List: wireless@wispa.org
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
