Frank's wrote:
"Reg Edwards" wrote in message
...

I havn't much idea on what the present argument is all about. And I
have no wish to take sides.

But -

If Line-1 has impedance Zo1 and is a fractional wavelength L1 long,

and Line-2 has impedance Zo2 and is a fractional wavelength L2 long,

then when both lines are connected together and are brought into
so-called 1/4-wave resonance by pruning the length of one of the
lines, it is IMPOSSIBLE for L1 + L2 to equal 1/4-wavelength or 90
degrees.

There are ALWAYS some degrees "missing" - depending on the ratio
Zo1/Zo2.

Except only when Zo1 = Zo2 will L1 + L2 total 90 degrees.

Can be proved mathematically without invoking standing or reflected
waves. You just have to believe in mathematics.

Line-1, of course, is a loading coil and Line-2 is a whip.

I hope this settles an argument.

For a demonstration download program TWOLINES from website below.


I don't understand the argument either. Why would anyone care
how many degrees an antenna has; it radiates all the power
whatever its length.

I personally wouldn't use an antenna with any less than a Master's
degree.....

- 73 de Mike KB3EIA -