Surplus test equipment and components, tube amps, RF and power supply components, transformers, capacitors, power resistors, new and used parts. In Fort Worth, Texas.
Manufacturers of two way radios, dual band radios, and related communications hardware and accessories, including repeaters, encoders, decoders, and antennas. USA.
The system, software, equipment, aerials and techniques used for broadcast and reception in Digital Radio Mondiale (DRM) on long, medium and shortwaves up to 30 MHz. [English, German and Danish]