[TowerTalk] Dipole gain?

[Joe Subich, W4TV]

On 2014-12-11 4:05 AM, Steve Hunt wrote:
> The problem with using dBd is that a Yagi's advantage over a
> half-wave dipole (at the same height) can vary with height!

That's only true at relatively low heights for horizontal polarization.
It can be a factor at heights below roughly one wavelength but the
significance varies depending on front to side ratio of the yagi in
the vertical plane (how much energy impacts the ground).

73,

   ... Joe, W4TV


On 2014-12-11 4:05 AM, Steve Hunt wrote:
> The problem with using dBd is that a Yagi's advantage over a half-wave
> dipole (at the same height) can vary with height! So a dBd figure is
> only valid at one particular height, over one particular set of ground
> conditions.
>
> Steve G3TXQ
>
>
>
>
>
>
> On 11/12/2014 03:32, Jim Thomson wrote:
>> Just rate the yagi, or any other ant in DBD.
>
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