In this short piece I will exploring the uses of the BNC Male to Banana Jack Connector in VHF antenna building.
It is a very controversial item cos it allows easy connection of the antenna elements, has a build-in coax connector, is stout enough for field work, and has also 2 mounting holes to pass your wire or paracord through. Practically you can build anything with it as long as you can cut and strip some wire.
Unfortunately I am too occupied with lesser stuff to make and tune the actual antennas, so please make do with their simulations and a few comments.
The Vertical Dipole
One will needed pieces of solid copper wire 1-1.5mm thick. The screw connector locks them tight enough to not let you pull them through with any force.
The Wire Dipole Version
In this case one can hang the connector by the top mounting hole and attach a line with a weight on the other. Then he attaches the dipole elements with tape, heat-shrinking tube, a prussik knot, or some bungee cord on the lines. The mounting holes are wide enough for paracord.
The Jungle VHF Antenna (Groundplane)
This is an antenna design/idea taken from the “FM90-5 Jungle Operations” manual. It is a makeshift antenna of the Groundplane category, not alike a mast fixed base antenna.
A single wire is connected to be the main radiating element and 3 wires make for the Groundplane elements.
Please excuse the reverse wire connections in the demo pictures.
And here is an idea for a frequency adjustable vertical element 😉
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