wrote:
By the way, I bought a 2 meter/220/440 mhz swr/watt meter that reads
radiated/reflective power. Is this a good meter to set swr? Are these
hard to use?

Easy to use, not so easy to understand.

I found some rg8/u and it is kind of expensive but the concensous seems
to be to use that if I want accuracy.

Exactly what are your concerns? accuracy? losses?
--
73, Cecil http://www.qsl.net/w5dxp


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Stryped wrote:
"---I bought a 2 meter/220/440 mhz, swr/wattmeter that reads
radiated/reflected power."

When you have forward power but no reflected power, you have a matched
load. SWR with a matched load is 1:1. For other power ratios, there are
charts, slide rules and a formula to convert a power ratio to an
equivalent SWR.

SWR is one measure of the reflection coefficient. If you have a
directional wattmeter, you don`t need an SWR meter.

Best regards, Richard Harrison, KB5WZI

wrote in message
oups.com...
WHAT IS THE "COIL" USED TO MATCH A 5/8 WAVE VERTICLE? i MEAN WHAT IS IT
MADE FROM AND WHERE DO YOU GET THEM?


Lots of good answers. - so I'll add another 1.5 cents worth.
The coil is at the bottom normally with enough windings (coils) to add the
right amount of inductance that will help to make a 50-ohm source happy.

MADE FROM COPPER - usually.
YOU MAKEM' - if you want to have fun.

Arrl website has an antenna handbook - and several volumes of 'The antenna
Compendium" that can give you many hours of fun winding coils, building
antennas, making up matching sections - and all that good stuff.

One tool I found helpful in playing around with antennas and transmission
line is an MFG 259 Antenna Analyzer. - and there are others out there, too.