No we are saying the same thing two different ways. Let's first talk about
the matching section. For example a G5RV may be modified by adjusting the
feedline length from about 22 to 38 feet. From the end of the matching
section you can run any practical length of coax.

If you had the top of your G5RV mounted at 100 feet, those length might not
be practical. Adding an additional 1/2 wave length, or multiple thereof
would allow the mechanism that switches in lengths of matching sections to
be at ground level.

For example my 132 foot dipole uses 90 feet of fixed 450 ohm ladderline to
the relay box. It is matched at 4035 and I then add sections to lower the
frequency. 3.5 MHz requires an additional 39 feet.

On 7.3 the first Imax point is at 29.5 feet and adding an additional 1/2
wave brings us to 90.3 feet. We could just as easily used 151, 211, 272,
333 etc. Feet.

Where is the matching section? The first or the last 29.5 feet on the 90.3
feet? I think you could say that the first section matches the antenna
impendence to somewhere around 50 Ohms and the 1/2 wave simply repeats it.
Or you could say the first 1/2 wave section repeats the antenna impendence
and the last 23 feet matches it. Potato, Patata, they both make the same
fries.


"Buck" wrote in message
...
On Thu, 9 Jun 2005 00:27:26 -0400, "Fred W4JLE"

Fred, I believe that you and Cecil are 180 degrees out of phase. Did
someone make a type-O?

--
73 for now
Buck
N4PGW