Wi-Fi Antenna 7-Element Yagi-Uda Disc - $20 (Hyannis)

Wi-Fi Antenna 7-Element Yagi-Uda Disc 1 thumbnail

condition: excellent

make / manufacturer: Home-built

model name / number: Wi-Fi Disc Antenna

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I built this antenna to have moveable element spacing (via 10mm hex nuts). The current arrangement of elements and their spacing is tuned to a wi-fi frequency. (2400GHz? - I don't remember, exactly). I used it on my drone controller to increase the in-flight range from, an initial, 120 ft., to, approximately, 1,000 ft.

Here are the current configuration's specifications: 7 elements: element lengths as follows: 1st element.=37mm; 2nd element.=37mm; 3rd element = 37mm; 4th element = 39mm; 5th element= 55mm; driven element = 70mm; 7th element (reflector) = 90mm. Boom length = 7.5"; boom dia. = 6mm.

Element spacing is as follows: first to second element 37.5 mm; second to third element 35.8 mm; 3rd to 4th element 37.8mm; 4th to 5th Element 38 mm. 5th to 6th element 10mm; 6 to 7th element 6 mm. Driven element is 70mm dia. Reflector dia. = 90mm. Boom is steel and elements are brass. Boom is 6mm diameter and 7 1/2 in length.

Driven element is isolated from boom (dielectric heat-shrink tubing and nylon nuts). Antenna mounting-hole provided on element 3.

The boom is stock, threaded, steel rod, with 10mm steel and nylon hex nuts. The Driven element has a 6-inch, 18-gauge, connected, stranded, steel wire with alligator clip. All elements are brass, and/or, steel.

You pick up.

post id: 7901037990

posted: 2025-12-08 13:43

updated: 2025-12-09 15:31

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Wi-Fi Antenna 7-Element Yagi-Uda Disc - musical instruments - by...

I built this antenna to have moveable element spacing (via 10mm hex nuts). The current arrangement of elements and their spacing is tuned to a wi-fi frequency. (2400GHz? - I don't remember,...