Yagi Antenna Design Software

[GroundUrMast]

I have built several Yagi Antennas using this software, each antenna has been successful.

I simply used scrap #12 or #10 gauge copper wire, scrap 1X4 or 1X2 lumber and a 300/75Ω matching transformer. A 10 director antenna cut for UHF CH 27 is in service in my attic, providing reliable reception of a weak 1 edge path station.

The software allows for use of insulated and non-insulated boom material, varied diameter of element material and other user input.

http://www.vk5dj.com/Yagi/Yagi.html

[GroundUrMast]

Here is the output for a five director Yagi cut for the center of the H-VHF band. This would be similar to an Antennacraft Y5713 or Y10713.

Construction is assumed to be based on a 1" square metal tube boom and 3/8" round tubing for the elements. The directors and driven element are not insulated from the boom. (The driven element is a folded dipole. Its' center point opposite the feed point contacts the boom.)

[GroundUrMast]

Here is a design for a 10 director Yagi cut for the UHF band (CH 14 - 51).

Build this using a 1X2 or 1X4 wood boom and elements cut from scrap 12, 10 or 8 gauge copper wire.

I've got a functional version of this in my attic, reliably receiving KBTC (PBS) over a one-edge path.

Rather than the 1/2 wave coax balun, I just soldered a store bought balun on and ran RG-6 from there.

[GroundUrMast]

UHF (CH 14-51) Yagi -- Predicted Gain: 12.8 dBd

Build with 1" square metal boom and 3/8" round rod or tube. Elements are not insulated from boom.

This will just squeeze onto a 5' boom.