Frankenrotator

I have published a page on my Frankenrotator project, a cheap homebrew azimuth and elevation rotation system using a Yaesu rotator mated with a Radio Shack TV rotator.  The brain of the unit is an Arduino Mega and complete schematics are provided.

IMG_2994

The project illustrates how to build a power supply for both DC and AC rotators, replacing commercial rotator controllers.  The main control unit powers and controls both rotators and interfaces to a computer using the Arduino native USB port.  Logging and control programs command the system via Yaesu GS-232B emulation.  The project also demonstrates the use of a remote slave microcontroller.  A small waterproof box located at the rotator senses azimuth and elevation.  The remote microcontroller is periodically queried by the master unit via a serial link.

I still have to build some antennas to rotate with this system, which I hope to complete before winter sets in here in Pennsylvania.  Hopefully I’ll get to chase some satellites in between ice fishing!

Anthony, K3NG, is a regular contributor to AmateurRadio.com.

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