[Elecraft] New list member/T1 tuner questions

[Don Wilhelm]

Rick,

I beg your pardon - the radiation of an antenna has everything to do 
with the relative phase.
That is what creates gain and cancellation in the radiation pattern.
The phase addition or cancellation on a long wire or any other antenna 
for that matter is what gives rise to the radiation pattern.

A half wavelength antenna will have radiation perpendicular to the wire, 
a full wavelength wire will have 4 lobes each at 45 degrees angle to the 
wire, a 3 wavelength wire will have 6 lobes spaced at 60 degrees (30 
degrees from the wire to the first lobes), a 4 wavelength wire will have 
8 lobes 45 degrees apart, and so forth.  A "V" antenna or a rhombic 
derives its gain in a bi-directional lobe by depending on the 
cancellation and additive effects of two wires and is manipulated by the 
angle between the wires.  I know of no case where the maximum radiation 
is parallel with the wire (off the ends).

73,
Don W3FPR

qrp_1 at juno.com wrote:
> Hmmm... isn't a definition of a "long wire" one in which alternate half
> wave
> sections are out of phase? [[snip]]
>
> In all the books I've read it says that a long wire is a wire that is one
> wavelength or multiples of one wavelength at the lowest frequency and
> radiation of a long wire is basically off the ends of such wire.  It has
> nothing to do with phase....
>   
>