Cheap Ham Radio Satellite Antenna Rotator! SARCTRAC Portable Satellite Operations. - YouTube
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Mini Satellite-Antenna Rotator Mk1 - SARCNET
V3.1 DC rotator - Gallery - Libre Space Community
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Mini Satellite-Antenna Rotator Mk2 - The DXZone.com
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The K3RRR El Cheapo AZ-EL Rotor System for Ham Radio AMSAT Birds | K3RRR Kilo Three Triple R Amateur Radio Station
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SARCTRAC Mk3b: A $290 Satellite Antenna Rotator
Mini Satellite-Antenna Rotator Mk2 - SARCNET
