[Antennas] Dipole Height

Thu Sep 17 10:59:53 EDT 2015

On 9/17/2015 7:05 AM, David Robbins wrote:
> once you factor in the extra loss for the feedline needed to get it up that high the improvement will be negligible.
>
>> Will my 40 meter dipole work better for DX at 90 feet above ground
> instead of 7 feet above?
>>> Jay...NE2Q
>
The loss of 90 feet of RG8 coax at 7 MHz is less than 1 dB.
As the owner of a 106 foot crank up tower with a 40 meter
yagi on top, I can tell you that the difference between 7 foot
height and 90 foot height is HUGE. Much more than any
coax loss. The 7 foot high dipole will make a nice NVIS antenna
for locals.
Rick N6RK