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@contesting.com> On Behalf Of David Gilbert
Sent: Sunday, March 14, 2021 12:59 PM
To: towertalk@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
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|