Sorry for the delay in answering back. Trouble with the computer. All fixed
now.

Ok on the length of coax. I have left it at 100 feet for now, so if I do
decide to higher the antenna in the future I can do.

I have a trapped centre feed dipole up for 80 and 40 meters.
The centre of the coax is connected to the half that points to north and the
braid is connected to the one that is pointing south.

I feel a bit daft asking this, but how can I tell if the antenna is running
north to south or south to north?

73 Andy


"H. Adam Stevens" wrote in message
m...
"How crucial is the length of coax in the first place?"
As long as all the impedances are matched, and they are with RG-213 and a
MA5B, length is irrelevant except that as-short-as-possible minimizes
resistive losses.

73, H.
NQ5H

"Andy" wrote in message
...
I want to measure and cut some coax for 14.200 MHz. It is to be connected
to my Cushcraft MA5B
I have cut off a 100 feet of RG-213 coax and have put a PL-259 on one
end.
I have a T connector connected to the analyse with a 50 Ohm dummy load on
one side of the T and the 100 feet of coax on the other side of the T.
I then go into SWR mode on the Analyser and sweep, the nearest dip it
gives is at 13.105 MHz. I expected it to be nearer to 14 MHz. Would this
be about right?

Before I start cutting bits off the coax I wanted to make sure that this
is correct or is there is a better way?

How crucial is the length of coax in the first place?

73 Andy