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Ham Member Lookups: 15265

A big ~WAVE~ from the wilds of Nebraska!

Hygain 15m monoband Yagi at 50ft, tilt over - crank up Windmill tower

Maritime Network: 21.412 mhz (21:00 - 24:00 UTC) - WWW.PMMSN.NET

Homebrew Rotator and Control via Lan...

Rotator: 24v wheelchair motor/gearbox 23:1 coupled to 60:1 worm drive gearbox via

double chain sprockets. Mast coupled to gear box with double chain sprockets.

Control: The black device directly above the battery is a 100amp full wave bridge

rectifier for battery/charger isolation. Above the terminal block is a 25w switching voltage regulator.

To the right of the terminal block in an Arduino Mega 2560 with internet shield and right of that is a 50

amp regenerative dc motor driver. The rotor is silent and fast at speeds from 1 deg/sec to 8 deg/s.

What my current rotator interface looks like in Chrome Browser (battery voltage not yet implemented)...

Kooba and Maggie, our Shepherd rescue pups at 16 weeks of age.

We are listening for you :)

1206218 Last modified: 2014-08-22 22:26:05, 1603 bytes

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