446MHz Quad Loop yagi design

Anything related to using and/or building PMR446 Antennas
Post Reply
User avatar
TM205
Posts: 9
Joined: Fri Oct 29, 2021 12:42 am

446MHz Quad Loop yagi design

Post by TM205 »

Here is a design for a 446MHz quadloop yagi.

Hopefully you should be able to build it from the info in the images shown.
You can use 1mm or 2mm copper wire for the elements
The boom can be 1/2" or 12.5mm copper pipe.
Most braze the elements but you can also solder with silver solder. Either way a thin coat of varnish or plastic coat will help to protect the antenna.
All the Director elements are the same size, so you can choose how many elements you want to build. Up to 12 elements listed.
The reflector plate can be solid copper or tin plate or even PCB material, but will need waterproofing, or you can use a stiff wire mesh.

Image
Image
ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ
User avatar
Bozzy
Site Admin
Posts: 19
Joined: Thu Aug 05, 2021 8:14 pm
Location: York

Re: 446MHz Quad Loop yagi design

Post by Bozzy »

Very interesting, many thanks for posting this!
Post Reply