[Elecraft] EFHW

[Don Wilhelm]

Ray,

I think that is 'stretching' the facts a bit.
A halfwave dipole is a halfwave dipole whether fed at the center or at 
an end or somewhere in between.
The radiation pattern and efficiency is the same.
The problem is that an end fed resonant dipole does need a little bit of 
a counterpoise (0.05 wavelength) in order to be able to feed it properly.

73,
Don W3FPR

On 2/11/2017 4:07 PM, Gmail wrote:
> As was said previously,  all end fed antennas are monopoles with displacement current flowing from the antenna element to earth. Unlike dipoles where the displacement currents flow from element to element.
> So without an adequate radial system to reduce the ground loss all end Feds regardless of length are only about 10% efficient.
> There are good reasons why 45 years ago when coax became readily available we switched from endfed monopoles to dipoles.