[Elecraft] Long wire antennas MORE

[Don Wilhelm]

I once heard LB Cebik give a 'balloon' analogy of directional or gain 
antennas.
He said the radiation pattern is like a balloon - you have to squeeze it 
somewhere to get it to expand in another direction.  There is no overall 
gain, it just directs the radiation in one or more directions at the 
expense of other directions.

73,
Don W3FPR

On 1/13/2018 11:41 AM, K9MA wrote:
> 
> One extreme case is the center-fed full wave, or "two half waves in 
> phase".  It has the high feedpoint impedance of the EFHW (actually about 
> double) and has a pattern much like a dipole, but sharper.  It has a 
> couple dB of gain over a dipole broadside but, of course, less gain in 
> other directions.