Yes, Gerald is right.
If you set your quad as diamond, you will get HV in both side corners. So,
diamond configuration is not good for high power.
Box or square configuration has the HV points in the middle of the vertical
wires, with nothing around. Much better for high power.
But when power rises over 10 Kw... box´s corners has HV as well... there are HV
everywhere.
73, Maximo - EA1DDO
> From: TexasRF@aol.com
> Date: Fri, 13 Jul 2012 09:11:15 -0400
> To: k7fm@teleport.com
> CC: amps@contesting.com
> Subject: Re: [Amps] corona on a quad
>
> Hi All, since the quad is made with full wavelength loops. the feed point
> can be selected to make the high voltage points midway between corners. That
> results in no sharp points at the highest voltage locations.
>
> 73,
> Gerald K5GW
>
>
>
>
>
>
> In a message dated 7/13/2012 7:17:36 A.M. Central Daylight Time,
> k7fm@teleport.com writes:
>
> "I doubt the corners of a quad would act like that as much if at all.
> Likely someone has some hard test data on this."
>
> As I recall, the quad was developed as a solution to corona discharge.
> HCJB
> is a broadcast station in the Andes and the yagis suffered corona
> discharge
> off the ends. The quad solved that problem.
>
> 73, Colin K7FM
>
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