The New England Sci-Tech Amateur Radio Society will meet on-line and in-person on December 20, 2022 at 7 PM and feature: “A Low Power, Single Polarization, 144 MHz, Earth-Moon-Earth Amateur Radio Station: Physics, Engineering, and Operations” by Dr. William E. Keicher, KC1HTT.
Description: Successful amateur Earth-Moon-Earth (EME) communications is the most challenging project that an amateur radio operator can attempt. The goal of this presentation is to give the amateur radio enthusiast an idea of what is required to successfully model, build, and operate a QRP EME station. The KC1HTT 2 meter, QRP EME amateur radio station is described in detail. Included in this presentation are the physics of EME communications, communication system analysis, design, and hardware implementation. In addition, the JT65B communication mode, waveforms, and signal processing are described. Finally, EME operations are reported, including QSO planning, safety considerations, EME support web sites, six successful QSOs, and a signal-to-noise analysis of the QSOs. Plans are discussed for the next generation KC1HTT EME radio station.
Bio: Dr. William E. Keicher, KC1HTT, is a retired research electrical engineer. He worked at MIT Lincoln Laboratory from 1975 to 2012 and CBS Laboratories from 1973 to 1975. He served as an officer in the US Army Signal Corps from 1969 to 1977. His research specialties include laser and millimeter wave communications, laser, microwave and millimeter wave radar systems, and infrared and visible imaging systems. He is a graduate of Carnegie Mellon University’s Electrical Engineering Department BSEE (1969), MSEE (1970), Ph.D. EE (1974). Dr. Keicher’s amateur radio interests include HF DX chasing, VHF/UHF satellite communications, and VHF Earth-Moon-Earth communications.