I was in a town south of Boston last week which has a few large windmills
(guessing over 200 feet tall, they are the big ones). Until last week I have
never been up close to one, amazing how huge they really are.
I did not have radios with me to check for QRN, however I was surprised at
the acoustic noise. While within a few hundred feet of the windmill I could
hear a sound like that of a jet flying overhead. It was not terribly loud
(like an F16 doing a low pass!), but was about the same audio level you'd
hear if a commercial jet was flying 10,000 feet overhead. In fact I thought
it WAS a jet, but noticed the sound was always present, and the direction
seemed to come from the windmill. It did not sound like wind turbulence, but
rather, could have been mechanical (gearbox) noise as the prop spun the gear
reduction and turbines.
Sorry if this is too far off topic...
73
dan
k0dan
-----Original Message-----
From: Hans Hammarquist via TowerTalk
Sent: August 26, 2014 12:19
To: towertalk@contesting.com
Subject: [TowerTalk] Fwd: Windmills and their possible problems??
Hi Kathy,
I don't think you will have any QRN problems with the "monsters" as they are
regulated the same way as most electric/electronic devices. If you can't
hear they on your AM radio I guess there are no problems at all as RFI/EMI
tend to be lower at higher frequencies (My personal experience.).
To bad you can't use they for some nifty LW. :)
I'm told that acoustic noise from the wings can be a problem but have no
personal experience with that.
Good luck at your new QTH.
best 73 de,
Hans - N2JFS
-----Original Message-----
From: Kathy Bookmiller via TowerTalk <towertalk@contesting.com>
To: towertalk <towertalk@contesting.com>
Sent: Mon, Aug 25, 2014 5:33 pm
Subject: [TowerTalk] Windmills and their possible problems??
Hi,
I've been looking to move to an area that would be more favorable to towers
and
antennas than my typical suburban QTH.
Yesterday I looked at a place with a couple acres. It is situated right in a
large group of these 300' monsters.
Google windmills wethersfield ny and see a panoramic of them.
Would be a great radio qth but really am concerned of what the effect of all
these generators would be? Do they generate QRN that will be concern? Or
other
types of electrical interference?
I didn't hear anything unusual on my AM car radio when I listened.
Does anyone have any experiences with operating near them?
73,
Kathy W2NK
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