I watched a YouTube video by Randy, K7AGE, where he talked about building a 6 meter dipole. This super simple antenna is so easy that I would have to find an excuse to NOT make it. Randy’s video (and many others on the net) made me want to try it out and I wanted to play on “the magic” band. After a few minutes of thinking I jumped in with two feet and started looking for 6 meter yagi antenna designs. I stumbled onto the YU7EF EF0604s antenna.
This antenna is a simple 4 element beam that is relatively compact, the longest element is just over 9ft and the boom is only 8ft! I started off wanting to make this antenna portable, however after drawing up the design I visited my favorite metal retailer for some aluminum tubing and discovered that they did not carry the sizes that I needed to make the elements telescopic. I ended up settling on single lengths of 3/4inch aluminum tubing with 1/16th inch walls for the elements. The boom is an 8ft piece of 1inch square aluminum tubing. The elements are held to the beam using hydraulic hose clamps. The boom is mounted to a pole using a pair of pipe/exhaust clamps which are bolted to a 4inch square plate of 1/8th inch think aluminum.
I posted the pictures from the build and testing phase via Google+
Click here do download the PDF sketch of the visio drawing I did:
Visio mapping of the antenna. Click to download the PDF
We operated single-band on 6 Meters from inside of a local telecommunications companies microwave site compound. Conditions were poor the first day, however the band opened up Sunday morning as we were packing up. We did not operate after 11AM as we started ripping everything down so that we could be out of the site before the sun set.
In this video you will see me operating the last few minutes of the end of the contest.
Here is VE7HHS working the pile up while VE7STK marks the grid squares.
As mentioned, conditions were poor for the most part, and we really did not really have a rate going until Sunday. Weather was interesting up at altitude, and it even snowed on us (on and off) for a few hours on Friday night, however none of it really stuck. Sunday, as is always the case, was our nicest weather day, and we had nice temperatures the whole time.