[TowerTalk] Fwd: Dipole gain?

[Joe Subich, W4TV]

 > the peak radiation angle will be straight up.

Only in free space or at heights less than 1/4 wave above ground.

73,

    ... Joe, W4TV


On 2014-12-10 10:24 AM, john at kk9a.com wrote:
> The crossed dipoles is omni-directional but the peak radiation angle will
> be straight up.
>
> John KK9A
>
>
> To:	towertalk at contesting.com
> Subject:	Re: [TowerTalk] Fwd: Dipole gain?
> From:	"Joe Subich, W4TV" <lists at subich.com>
> Date:	Tue, 09 Dec 2014 17:59:24 -0500
>
>
> Any horizontal antenna will have a direction (angle above
> horizontal) with higher power density due to the combination
> of direct rays and rays reflected from the ground.
>
> The turnstile, if properly fed, will have uniform angular
> radiation in the horizontal plane.  Vertical "take off" angle
> will depend on height above ground and the "circular" radiation
> directly up will depend again on height above ground and the
> ground constants.
>
> 73,
>
>     ... Joe, W4TV
>
>
> On 2014-12-09 5:45 PM, Hans Hammarquist via TowerTalk wrote:
> Hi Jim,
>
>
> The next question then is; Do two horizontal, crossed dipoles, feed 90°
> out of
> phase have an even power distribution across the hemisphere, horizontal
> across the
> horizon and circular above and below or is there a direction with a higher
> power
> density?
>
>
> Hans - N2JFS
>
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