Tag: NVIS

Ohio Amateur Radio Emergency Service (ARES) will sponsor “NVIS Antenna Day” on Saturday, April 25. The idea, said Ohio Section Emergency Coordinator Stan Broadway, N8BHL, is to determine if the sometimes-vaunted near-vertical incidence skywave — or NVIS — concept really works as an antenna for emergency communication on HF. NVIS, is a technique that allows using HF for highly reliable short-range communication. “We are encouraging groups in every Ohio county to devise several portable NVIS antennas that they think will perform, and then actually test them on the air,” Broadway said. The program grew out of an annual antenna party in…