The Assembly Steps
1. Use the calculator provided on the website listed above to find the “1/4 guide wavelength.” Measure that distance up from the bottom of your can and mark it. Make sure your measurement is precise, as the signal strength depends on your precision here.
2. With a drill or a hammer and nail, puncture a hole in the can. You don’t have to treat it like an egg-shell, but don’t deform the shape of the can too much.
3. Now, begin widening the hole in the can. The goal is to get the hole wide enough that the unthreaded end of the n-female mount is in the gap, with the rest of the connector flush against the can.
4. Drill the 4 bolt holes in the can. These should be fairly easy to get with just one or two drill bits or nails and should not be bigger than the holes in the N-Female connector.
5. Set your can aside and begin warming up your soldering iron. In the interior of the n-female connector there is a gold prong that sticks up 0.21″ from base to tip. Prepare a length of firm copper wire that fits snugly into the socket. Once you’ve done that, trim the length of copper down so it is exactly one inch in length from the end of the gold mount to the tip of the copper wire.
6. With your iron warmed up and the length of copper cut, you must hold the length of wire is straight as possible while you solder it to the mount. Any deviation you make at this stage could weaken the signal, so you should be prepared to solder and resolder until it’s correct.
7. Once the wire is in the connector, reinsert the n-female chassis mount with your wire back into the can. Once you’ve done that, gently bond the two together with nuts and bolts threaded through the holes you prepared in step four.
8. With the N-Female connector mounted to the can, your cantenna is done!