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Deutschlandsender Zeesen
Deutschlandsender Zeesen was a facility for longwave broadcasting near Zeesen, a district of Königs Wusterhausen in Germany. Built by the German ''Reichspost'' in 1927, it served the nationwide Deutschlandsender radio transmissions by the Deutsche Welle broadcaster. History Construction started after the capacity of the first Königs Wusterhausen radio transmitter became insufficient to meet the growing demand. The completion of the Zeesen facility was delayed for three weeks, when the western of the two masts collapsed as its construction reached a height of . The station was inaugurated on 20 December 1927, then called ''Deutschlandsender II''. The Zeesen transmitter's antenna comprised a and T-antenna spun between two guyed masts, which were apart. It was connected directly with the transmitter which was housed in a building in the middle of the two masts. Until 1928 ''Deutschlandsender II'' used the frequency 240 kHz. Afterwards its frequency was 183.5 kHz and, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longwave
In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band. The term is historic, dating from the early 20th century, when the radio spectrum was considered to consist of longwave (LW), medium-wave (MW), and short-wave (SW) radio bands. Most modern radio systems and devices use wavelengths which would then have been considered 'ultra-short'. In contemporary usage, the term ''longwave'' is not defined precisely, and its intended meaning varies. It may be used for radio wavelengths longer than 1,000 m i.e. frequencies up to 300 kilohertz (kHz), including the International Telecommunication Union's (ITU's) low frequency (LF, 30–300 kHz) and very low frequency (VLF, 3–30 kHz) bands. Sometimes the upper limit is taken to be higher than 300 kHz, but not above the start of the medium wave broadcast band at 520&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |