630M Station

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630 meter modified folded unipole antenna

Build the 80 M unipole then add the loading coil and vac-cap for the 160M or 630M bands.

The antenna is 30ft X 4 in irrigation tubing with 4 drop wires and 4-20 ft top loading wires with only 8 ground radials 35 to 45 ft long. The base loading coil is 50 turns #12 on 4 inch PVC (150uh).

The folds or drop wires are 18 in from the irrigation tubing.

Drop wires, top loading wires, base loading coil and radials are all # 12 stranded wire.

The tuner uses a vacuum capacitor and roller inductor, you can remote this with 12 volt DC motors.

Still working on this page -- Click image to go back -- Not enough time in the day.

Click here for more 630M unipole infomation