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In broadcasting monopole antennas, however, lengths equal to 5 / 8 wavelength are also popular because in a monopole this length maximizes the power radiated perpendicular to the axis of the radiator, which with a vertical radiator optimizes efficiency for terrestrial broadcast.
This construction type has the advantage that cables and other components can be protected from weather inside the tube and consequently the structure may look cleaner. These masts are mainly used for FM-/TV-broadcasting, but sometimes also as mast radiator. The big mast of Mühlacker transmitting station is a good example of this. A ...
Typical mast radiator of a commercial medium wave AM broadcasting station, Chapel Hill, North Carolina, U.S. Medium wave (MW) is a part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with more limited sound quality than FM stations on the FM broadcast band. During the ...
To increase the radiation resistance, VLF transmitters use huge capacitively top-loaded antennas such as umbrella antennas and flattop antennas, in which an aerial network of horizontal wires is attached to the top of the vertical radiator to make a 'capacitor plate' to ground, to increase the current in the vertical radiator. However this can ...
Guyed, steel-tube mast radiator insulated against the earth, height 232 m NRK P1: Lienz: 1 Ö2 Radio Niederösterreich 639 RKS Liblice 2: 750 Cage antennas on two guyed mast of lattice steel, height 355 m. Ceased on 31 December 2021 ČRo Dvojka: Ostrava: 30 Ceased on 31 December 2021 ČRo Dvojka 648 Orfordness: 500
The Type 82 was designed to measure bearing, range and elevation with enough accuracy to place a target return within a 1,500 foot (460 m) box. [13] In testing, it demonstrated a 95% chance of placing the target within 650 yards (590 m) horizontally, and 550 yards (500 m) in altitude.