The dipole is at 40 INCHES height?
If you're comparing a dipole at 40-FEET above ground with a
mobile-type antenna, the Dipole will surely be more efficient for all
intents and purposes.
Remember, the angle of radiation is what is important ... a vertical
will radiate most energy BELOW 50 degrees while a LOW dipole will
radiate MOST of its energy 'straight up'.
Quoting Al Williams <firstname.lastname@example.org>:
> Last evening a couple guys ran a test of signal strength of the two
> antennas with several stations separated from 10 to 200 miles apart.
> The dipole was about 2 s units stronger at all locations.
> I suggested that the screwdriver be laid over horizontally to then
> compare to the dipole. Alas, I forgot that a low horizontal antenna
> suiffers efficiency so that laying the screwdriver over at its
> typical mounting height may not be a valid comparison?
> They plan to run the test again tonight but with the screwdriver
> horizontal but at what height I don't know.
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