Thanks to all for input on my vertical project. The base was installed
yesterday, the tubing riveted together and the coil/top hat built. I still need
to install the radials and tune it up on Wednesday. Here is what it will be: 38
foot self supporting, with four 6-foot top hat spokes with a perimeter wire.
The top coil is 75 uH and the base tuning coil is 10 uF. No matching network at
the base because if it is fixed-tuned it will help at resonance but not at the
band edges. I will tune it at the shack with a tuner. Later a motorized rotary
inductor can be installed at the base.
BTW, I designed a dual-direction Beverage and have a schematic available. The
Beverage is made of coax that serves as the antenna and as the transmission
line for routing the signal from one end to the other. I didn't know if I could
attach a WORD document here so if you want to see the schematic just ask and
I'll email it directly to you.
Dave WX7G
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