Beginning with some of the earliest computer modeled and Computer Numerically Controlled CNC manufactured antennas, Mike Staal, K6MYC has applied his experience to design and build the finest directional linear, cross-polarized and circular Yagis available.
radio antenna Ham satellite
A handle was added on the boom end which makes it more comfortable to hold and further isolates the antenna from the handler. This adapted explanation is based on By L. You need pvc pipe and aluminum tube, few coaxials cables to do the phasing harness. I am now limited to 90 degrees elevation and must change the azimuth heading degrees at mid pass. Repeat this "divide and conquer" search by testing the loss between the room entry and some mid point, like a preamp, and you will quickly locate the lossy component.
Low Cost Satellite Antennas
I sent this circuit to Brooks of Kansas City Tracker and he said this is how he does it at his station. The extra expense will be paid back with interest in a few years when it comes time for antenna maintenance. Sometimes "general" surplus and salvage stores will have an electronics section, or materials that you can use. U-Bolt Kit, 3.