I estimate we take a momentary 1-2 dB hit each time a fiberglass blade goes
through the path. Oddly, they affect the signal even when they are not
directly in the path. Cambium alignment tone makes it easy to hear this
when the blades are turning.
The worst situation seems to be when the wind is aligned with the path so
the blades are facing directly at you or away from you, and there are
several of them lined up and the blades are offset a little from each other,
and then they decide to stop them (no wind or price of electricity too low
to generate).
I don't usually worry too much about 1 turbine in the path, but 2 may be an
issue on longer links, and we don't do it if there are 3 or more.
Life gets better when Google Earth updates their imagery, until then you are
guessing where the turbines are, unless you get a map from the windfarm and
overlay it.
Are you going into the wind farm, or are they building it around you? One
good thing if you were there first and they are in the planning stage, they
will usually pull FCC licenses and avoid any existing licensed links. And
if you talk to them during planning, they may move a planned turbine 50 feet
one way or another to avoid putting one right in a backhaul path even if it
isn't a licensed link. Obviously they aren't going to do this for
individual links to customers.
Also, nobody builds a new house in a wind farm. Assume population growth
will be zero or negative.
-----Original Message-----
From: Tim Reichhart
Sent: Tuesday, September 15, 2015 5:59 PM
To: [email protected]
Subject: [AFMUG] wind mill farm question
Guys
I just want to know if I am going have any issues with placing tower around
an wind mill farm or not? I just want to know if I am going have
interference or getting signal to customers from tower going through an wind
mill farm?
Tim
