[TenTec] New and Improved Terminology (NVIS origins)

[Rick - NJ0IP / DJ0IP]

Of course they do, but it doesn't hurt them, and it certainly doesn't hurt
the RF.... or does it.
Maybe Jerry just found the true source of LDE!

:-)

Rick

-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
On Behalf Of Dr. Gerald N. Johnson
Sent: Monday, January 10, 2011 8:43 PM
To: tentec at contesting.com
Subject: Re: [TenTec] New and Improved Terminology (NVIS origins)

The wire elements in the Hex Beam and Spideream surely vibrate in the 
wind, on power and phone wires its called Aeolian vibrations, most 
prominent at light winds. http://www.uh.edu/engines/epi1653.htm 
describes it in more detail.

73, Jerry, K0CQ


On 1/10/2011 7:18 PM, Rick - NJ0IP / DJ0IP wrote:
> Or build the antenna from the start in a way, such that it inherently
> supports itself.
> 2 examples:  Hex Beam and Spiderbeam
>
> 73
> Rick
>
> -----Original Message-----
> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
> On Behalf Of Stuart Rohre
> Sent: Monday, January 10, 2011 7:20 PM
> To: tentec at contesting.com
> Subject: Re: [TenTec] New and Improved Terminology (NVIS origins)
>
> Another fix for "strumming" of beam elements is to fill them with poly
> rope.  The whole idea is to change the resonant frequency to stiffle
> vibrations.
>
> -Stuart Rohre
> K5KVH
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec at contesting.com
http://lists.contesting.com/mailman/listinfo/tentec