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Old 11-Dec-2019, 10:42 PM   #5
GroundUrMast's Avatar
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,773
A three director Yagi for CH-6

Here is a design generated using software by VK5DJ.

I've built a few antennas based on this software and found them satisfactory. I have not built this particular design though.

You can use just the dipole alone or omit one or more directors if you wish. The balun design is optional, you can substitute a store bought 300/75 ohm balun.

Though the measurements are metric, I chose values that are close to imperial. The boom works out to about 8 feet of 1 inch square tube and the elements can be 3/8" to 1/2" diameter. (1 inch = 25.4 mm)
Attached Files
File Type: pdf 3DIRYagiCH6.pdf (140.3 KB, 1003 views)
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

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Last edited by GroundUrMast; 11-Dec-2019 at 10:52 PM. Reason: added comments
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