Analog, digital and RF electronics.
Power amplifiers, antenna tuners, directional couplers and combiners, RF power measurement, and antenna design and modelling. Commercial and amateur service.
DC-DC converters and computer power supplies, including high-current and custom-voltage designs.
Schematic and PCB design through board-level assembly, rework and wiring — one-off prototypes to full production runs.
Microcontroller hardware and firmware design for custom control, measurement and test systems.
Digital signal processing — audio, I/Q and software-defined radio — and Windows application development.
3D design, printing and scanning for custom enclosures, front panels and mounting hardware.
David Paster
South Jersey, USA