Corner pieces and feedpoint for field-deployed delta loop antenna
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These provide means of keeping your delta loop antenna dimensions where they should be, while providing a nice, clean way to do so, while providing a way to connect it to your mast and tie the bottom corners to the ground.
I used this tool to design my 10-meter delta loop: sota-antennas - Delta loop antenna designer. My antenna is designed to be 2m above the ground at the bottom, with the top corner up about 4.1m. That and the dimensions I chose allow me to feed it directly with 50-ohm coax.
The top corner piece is designed to slide down and friction-fit a couple of inches down the second or third section of a fishing-pole mast. You'll need two of the bottom corner pieces. I tied about 15ft of rope to those so that I can pull the bottom section of the antenna taut.