Dear "Asimov" w/o a call sign:

If you look closely, you will see that the "coiled up ribbon" is a
transmission line or a pair of transmission lines. By elevating the
antenna, which must be connected to the truck through at least one
transmission line, much improved transmission range is effected.

73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
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"Asimov" wrote in message
...
" bravely wrote to "All" (24 Mar 05 09:41:39)
--- on the heady topic of " Loading Coil Q"

snip

Lately I've seen TV media trucks with a type of rather wide pole of
what seems to consist of a large coiled up ribbon. When they get to a
location they unfurl the tube and it raises the microwave antenna.
They seem to be made out of plastic or carbon, not sure. The one I saw
went up about 30 feet. It seems very lightweight in any case. Anyone
here know what it is?

A*s*i*m*o*v