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435MHz Yagi Antenna for Telemetry

A project log for High Power Experimental Rocket Platform

Experimental high power rocket with active stabilization, live telemetry, autonomous GPS guided recovery and HD video

j-m-hopkinsJ. M. Hopkins 07/28/2015 at 03:130 Comments

Completed a 435MHz directional Yagi Antenna for rocket telemetry. It can pivot in X and Y axis and should provide quite a bit gain over the omnidirectional antenna on my transceiver. As the rocket launches, a helper (my beautiful wife), will track the rocket with this contraption so that my computer can maintain telemetry lock. The computer will show a live view inside Google Earth and also a separate telemetry window and serial console for remote commands.

I still need to actualy wire in the cable and adjust the elements, but the hard part is done.

Pivoting is accomplished via two 3/4" dowels that are attached at different axis points.

I might take a flush cut saw to the Y axis dowel.

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