Instructables

Step 3: Printing the Yagi Diagram

Picture of Printing the Yagi Diagram

The most essential point in printing the template is getting the correct scale. In the attached zip file below, are three png picture files.

The antenna is longer than an Letter sized or A4 sized paper. So you have to print the template in two parts (labeled part1 and part2 in the zip file). I have also included the full sized unsplit template if your printer can handle large enough paper.

PRINTING:

Make sure to set your printer's properties to ORIGINAL SIZE (not "best fit to page" ect..).

Set the print orientation to LANDSCAPE.

VERIFYING SCALE:

Use a ruler or caliper to measure if the print is of correct scale. You will notice vertical bars crossing the horizontal line. The vertical bars represent the Yagi "elements" which will be made from paperclips. The horizontal line is the backbone of the antenna which will be build out of popsicle sticks.

You will also notice numbers next to the elements. These numbers are in pairs. The first number is the length of the element in millimeters. The second number, is the distance from the start of the diagram to the element, in millimeters.

Measure the size and position of a couple of elements on each prints. If your measurements match the numbers on the diagrams, then your print is to scale and you may proceed. Accuracy need not to be tight for the antenna to perform well.

Now superimpose both prints, until they match at around element 10 or 11, and tack them together with scotch tape or white glue.


Yagi.zip212 KB