[TowerTalk] Wind noise

[Al Kozakiewicz]

I guess I have been laboring under the illusion that an antenna is the most resistant to damage when the boom is parallel to the wind direction. Strong winds here are predominantly from the west, so that is where I park it when not in use. If that is wrong, then the problem is probably solved by a different parking orientation!

If you look at the pictures on QRZ the tower itself is shielded from the dominant wind direction by the house, so I assume the noise is generated by whatever is on the mast. The roof ridgeline is due E-W and the antennas a pointed NE in the photo.

Al
AB2ZY

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of David Gilbert
Sent: Sunday, March 14, 2021 12:59 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Wind noise



Why do you want to point the antenna into the wind?  I do just the opposite for my OB16-3 ... less stress on the elements.

Depending upon the spacing, you could also be getting some resonance in the air space between the antennas, but you're probably correct that it is the one of the antennas.  It could also be the tower itself, of of course.

In any case, once you find the source of the noise you should be able to use some kind of mechanically lossy dampener to kill it.  If you find the source, somebody here will almost certainly have a suggestion for what you could use.

73,
Dave   AB7E



On 3/14/2021 9:45 AM, Al Kozakiewicz wrote:
> I have a short tower bracketed to the house adjacent to my shack. See QRZ page. C3, 6M3 and 2M7. I have a low frequency noise when the wind blows and I suspect the C3 is the source. Sounds like an airplane is flying close by. Rotating the antenna so that it is perpendicular to the wind direction diminishes the volume somewhat.
>
> It is not a huge deal, but I'd like to keep the antenna pointed into the wind when it blows. Is there any simple way to eliminate or cut down on the noise?
>
> Al
> AB2ZY
>
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