For the constuction of a Bi-Quad, the following parts are needed
# A small section of 3/4 (or smaller) copper pipe, about 8".
# A piece of square, flat, copper, if using a parabolic dish the dimesions are 110x110mm, without 123x123mm is best. Copper clad PCB board works, I chose just a sheet of copper I found. You can use anything coductive, I use copper because the ease of workability, and low loss; however, you can use any metal for any part of the project.
#Coax, a LMR-195 if < 5' to the transceiver, LMR-400 if > 5', RG-58 will work if the section is short.
That's it.If making a parabolic dish,
one will need a dish :) Recycled one if possible. There is a lot of science about which size dish to use for 2.4GHz. Personally, this is about a cheap hack job, and I can get a lot more coverage with a old TV dish (direct tv style). Skills & Tools needed
# Soldering skills is a must, I used a propane torch for most of this project. A high watt soldering iron can, and has, worked.
# Hack saw, file, tin snips, wire strippers, a crescent wrench, flashlight.
# Ingenuity; each person that tries to match this will run into their own problems, wants, desires; we are here to help; yet, a level of McGyver like skills is a plus. I made this using no money, I could improve greatly on it If I choose. Make it your own
.And last but not least, educate ourselves :)
I put some great links through the steps. If you are expert or novice, it helps knowing a little.http://www.trevormarshall.com/biquad.htmhttp://en.wikipedia.org/wiki/Parabolic_antennahttp://en.wikipedia.org/wiki/Antenna_(radio)