6 Element Yagi for 440 MHz (70 cm)
from Ryan St. Arnold - KCØJEX
This antenna makes a great yagi for foxhunting (RDF) with its
compact size, or makes a great base antenna with plenty of gain.
This Antenna has not been tested, mainly for experimental
purposes. If built, let me know the results. These dimensions are not certain, and this is the
only exception on my web site.
Materials:
3/4" OD or 1/2" ID PVC, or wooden closet dowel,
about 2 feet.
Hollow Aluminum or Copper tubing, 1/4" or so
Screws and Nuts small enough to fit through metallic tubing
Coax - your choice
Measures:
Reflector - 13.3"
Driven - 12.6"
Director 1 - 12.1"
D2 - 11.6"
D3 - 11.2"
D4 - 10.7"
Spacing:
Reflector to Driven Element - 3.8"
Driven to Director - 2.52"
Director to Director (Continuous) -
2.52"
Feeding the Antenna:
You can feed this antenna similar to the 2M yagi, click here to see the
page.
E-mail me with any questions, I will be more than happy to help
out.
[email protected]