[Towertalk] Low dipoles

[Al Williams]

>
>     A novel east coast idea via K3LR years ago is to put a reflector wire
on
> the ground under the low dipole. Cheap and easy way to get some more dB in
> the air.
>
> Cheers,


>From time-to-time this idea is floated, but does it have merit?

First, Earth is said to be a pretty good reflector.

Second, EZNEC reports for a half-wave 68' dipole 30' high at 7.04 mhz:

no reflector           perfect ground             7.93 dbi  straight up

70' refl on gnd             "                               7.93   "

no reflector           real ground (.005)       6.39   "

70' refl on gnd             "                               6.58   "


73 k7puc