On 9 Aug 2006 05:38:48 -0700, "N3" wrote:

I'm trying to tune a 2 mtr, 3 element beam that has a gamma match.
After connecting the coax to the driven element & adjusting the
matching unit, where should the coax exit in relation to the boom & the
elements? Should it travel along the boom or drop straight down next to
the driven
element? Any assistance concerning the above would be most appreciated.
Thank You.

Your description is not entirely clear, but I interpret it to mean you
have a vertical beam. In that case you should not have any additional
vertical conductor within about 0.2 wavelengths to the rear of the
beam, or anywhere within, near, or in front of the beam.

So... if that is the case, you could route the cable from the
feedpoint, back along the boom, and continue in that direction for a
further quarter wave or more before dropping the cable down.

There are other ways to get the cable away without disturbing the
pattern and feed point impedance.

Owen
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