View Single Post
Old 05-17-2004   #4 (permalink)
Thorn
Did you do the math?
 
Thorn's Avatar
 
Join Date: Apr 2002
Location: Villa Straylight
Posts: 10,430
Quote:
Originally Posted by jjessico
Yes I did go through those.

http://www.turnpoint.net/wireless/an...ypringles.html
This was a nice quick guide to a pringles-yagi, but I'm building one a tad bit larger and I'm not sure how the dimensions would scale.

I've obtained most of my ideas and plans from:
http://www.netscum.com/%7Eclapp/wireless.html
but I am still confused. Also he focuses more on his 18" yagi. Unfortunately the small pipe he uses is harder to come by for me.

Thanks,
Jason
The diameter of the PVC pipe doesn't matter. You don't even need that except for structual stability.

The things which are critical are the distance of the washers, the distance from the reflector and the diameter of the can portion. (Your X dimension.) Lincomatic has a calulator on his site for computing the optimum diameter. Look throught the Antenna FAQs. Most of the other dimensions will be either single 1/4 wavelength or multiples of that. The 1/4 wave at these frequencies is 1.22". So the washers should be 1.22" in diameter, the spacing of the washers should be 1.22" apart, etc.
__________________
Thorn
"Read Altas Shrugged. Compare it to today. Repeat as necessary"
Thorn is offline   Reply With Quote