Topband: 160 top loaded vertical question (Kees Nijdam)
W7RH
midnight18 at cox.net
Wed Feb 7 20:53:57 EST 2018
Kees,
A 50 ft high vertical with two top hat loading wires each equal length
about 67ft will work great with a good ground field. It can easily be
fed with a 4-1 toroidal transformer 50-12.5 Ohms. Absolute minimum
radial field would be 30 1/4 wave radials adding as many possible short
radials in space if required.
A small inductive coil wound on base insulator can easily tune the
antenna to the band segment you want. Use large diameter copper tubing.
73
Bob
--
W7RH DM35OS
It has become appallingly obvious that our technology has exceeded our humanity.
Albert Einstein
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