The magnetic loop antenna is a familiar sight in radio amateur circles as a means to pack a high performance HF antenna into a small space. It takes the form of a large single-turn coil made into a ...

Abstract: To solve the poor quality of Very high frequency (VHF) speech communication in the navigation field, a VHF speech enhancement model based on an improved transformer (VHFSE) is proposed in ...

Abstract: A conformal log-periodic balloon antenna operating at a very high-frequency (VHF) band is presented in this communication. The antenna consists of eight conformal bowtie-dipole elements ...

The VHF radio is undoubtedly the most common piece of electronic gear on saltwater fishing boats. It enables us to carry on casual conversations over substantial distances on marine radio channels, ...

Ham radio designates as QRP transmission carrying low power (5W or less) and QRPp those that are even smaller, 1W or less. As ham radio can legally use (depending on band privileges and categories of ...

N6MJ will be active as EF8R from Canary Islands, IOTA AF - 004, in CQ WW DX CW Contest, 29 - 30 November 2025.