Hi, i have an 5/16 inverted-L nad for matching with my 50ohm transmitter i am
using just a series variable capacitor 0-500pf. I am using 1 meter coaxial
50ohm cable to connect the transmitter with the capacitor and the antenna is
connected directly to the capacitor. The capacitor is in a box with silicon
oil. The swr now is about 1.1 .
Because of, i am thinking to move the antennas feed point out of the
transmitter's metal house (now the variable capacitor and the feed point are
into the transmittr's metal house)
i have decide to use about 2 meters coaxial 50ohm cable to connect the
capacitor (which will be stay into the house) and the antennas feed point
(which will be out of the metal house).
I would like to ask you if this additional coaxial cable will produce any
problem as regards the antenna's matching. I ask you that, because i know that,
this additional cable will produce a paraller capacitance between antenna's
feedpoint and the ground. The series variable capacitor can cancel this
paraller capacitance? I will need something else to cancel this capacitance,
like a variable coil?
I would not like to move the variable capacitor out of the metal house, to
connect it directly to the antenna's feed point because of the rain.
thank you very much.
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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