portable relay station
1Shortwave relay station — A shortwave relay station typically consists of a transmitter building (or transmitter hall) and one or more HRS type antennas. Some relay stations (that operate at 100 kW or less) that only serve a local region (within 1500 km) may use Log… …
2Portable operation (amateur radio) — Licensed amateur radio operators often take part in portable operations using radio equipment when traveling. A portable station can be anything from a small QRP (Low Power) radio and antenna, to a top of the line rig, space dependent. On long… …
3Station spatiale internationale — Pour les articles homonymes, voir ISS. Station spatiale internationale Assemblage …
4tracking station — Synonyms and related words: CIC, Combat Information Center, advance base, beacon station, bunker, control center, control station, direction finder station, display station, fixed station, home station, impact area, inner station, launching base …
5Amateur radio station — Fixed ground station of a German amateur radio operator An amateur radio station is an installation designed to provide radiocommunications in the amateur radio service for an amateur radio operator. Radio amateurs build and operate several types …
6Microwave radio relay — is a technology for transmitting digital and analog signals, such as long distance telephone calls and the relay of television programs to transmitters, between two locations on a line of sight radio path. In microwave radio relay, radio waves… …
7Base station — The term base station can be used in the context of land surveying, wireless computer networking, and wireless communications.Land surveyingIn the context of external land surveying, a base station is a GPS receiver at an accurately known fixed… …
8Numbers station — Fictional example of a numbers station. Numbers stations (or number stations) are shortwave radio stations of uncertain origin. In the 1950s, Time magazine reported that the numbers stations first appeared shortly after World War II and were… …
9Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …
10Satellite radio — is an analogue or digital radio signal that is relayed through one or more satellites and thus can be received in a much wider geographical area than terrestrial FM radio stations. While in Europe many primarily FM radio stations provide an… …
