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Český rozhlas Vltava (culture, art and classical music) Český rozhlas Radiožurnál Sport (sporting events, thematic magazines, interviews and reports) Český rozhlas Radio Wave (youth radio via cable, digital, and internet only) Český rozhlas Plus (spoken-word, journalism) Český Rozhlas Region (regional radio with 14 regional channels)
3 Radio North Rome 1 Radio Luce Villa Estense: 0.5 Challenger Radio Alphen aan den Rijn 0.1 MBC Radio 855 Las Torres de Cotillas 100–150, 75 at night Radio Nacional (Murcia) Tâncăbești: 400 Radio România Actualităţi: Tarragona 25 Radio Nacional (Cataluna) Huelva 10 Radio Nacional (Andalucia) 873 Chişinău: 75 Radio Moldova: West Lynn 0.3
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves , are widely used in modern technology, particularly in telecommunication .
A large expansion of the number of ČRo stations took place in 2005. At that time, the D-dur, Rádio Česko and Leonardo circuits began broadcasting, and in 2006, ČRo Radio Wave station was added. [12] Czech Radio launched a new logo in 2013, featuring the letter R with stripes, at a cost of 2.2 million Czech koruna. [13]
The Roumoules transmitter is the main broadcasting facility for longwave and mediumwave broadcasting of Radio Monte Carlo near Roumoules, France [1] and is owned by Monaco Media Diffusion. The 1000 and 2000kW transmitters installed are among the most powerful in the world and can be received well at nighttime throughout Europe.
HF's position in the electromagnetic spectrum.. High frequency (HF) is the ITU designation [1] [2] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).
Medium frequency (MF) is the ITU designation [1] [2] for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz). Part of this band is the medium wave (MW) AM broadcast band. The MF band is also known as the hectometer band as the wavelengths range from ten to one hectometers (1000 to 100 m).
Equivalently, , the distance that a radio wave travels in vacuum in one second, is 299,792,458 meters (983,571,056 ft), which is the wavelength of a 1 hertz radio signal. A 1 megahertz radio wave (mid-AM band) has a wavelength of 299.79 meters (983.6 ft).