David Hedrick Email & Phone Number

Diverse skillset and extensive background in Electronics, Radio Frequency, UAS and Radio Control, Automotive and Mechanical systems. Many years Managing people in Automotive Parts and Service industries and Customer facing service-based sectors. Able to go from building electrical schematics to diving into mechanical diagnosis and repair. Many years in Radio Frequency experimentation, from building RF power amplifiers from old analog television station surplus equipment to designing and building high power Yagi Uda antennas and tuning with Vector Network Analyzer. Participated in Meteor Scatter communications, weak signal long-range VHF and UHF communications to making contacts bouncing UHF signals off the moon and back to earth. Experience with Microwave and SHF frequency circuitry design and implementation. Home Built and maintain a Multi-Mode Digital Repeater using open-source hardware and Linux Microcomputer as a repeater controller and surplus Analog radios. The repeater has been on air Continuously for 2 years and Co-Ordinated by the South Eastern Repeater Association, the FCC recognized coordinating body for Amateur repeater frequencies in Virginia. Many years of Electrical diagnosis and repair in the automotive industry. Certified Master Ford Mastertech and Advanced Level Specialist for Gasoline, Diesel, and Hybrid Vehicles. Certified for diagnosis and repair of Hybrid Electric, Plug-In Hybrid Electric Vehicles, and Electric Vehicles. Specialized in CAN bus and LIN bus network fault diagnosis and repair. Over 200 hours of flight time on Transmission and Distribution power lines with UAS systems. Manual Comprehensive Visual Inspections of Transmission Power line Systems. Design Development and building of UAS systems including sensor integrations and modifications. Some experience building and testing AI and Machine Learning models for basic generic object classification. Experimental UAS-based network systems with experimental links for BVLOS implementation. Experience in CAD design and Modeling for FFF and FDM manufacturing(3D Printing). Rapid prototyping and product development using FFF and part integrations to enhance existing capabilities. Computer Networking background, including mesh networking and long-range point-to-point links in Unlicensed and Licensed radio spectrums. Involved in building one of the largest non-government open-source mesh network systems in the country. Many hours of experimentation and testing fall under NDA agreements. Overall Experimenter and tinkerer!