long wave - ορισμός. Τι είναι το long wave
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Τι (ποιος) είναι long wave - ορισμός

RADIO TRANSMISSION USING WAVELENGTHS ABOVE 1000 M
Long-wave; Long wave radio; Longwave radio; Long wave; Long wave band; Long radio waves; Long Waves
  • Dynatron Merlin]] T.69 console radio receiver, showing LW wavelengths between 800 and 2000 metres (375–150 kHz)

long wave         
Long wave is a range of radio waves which are used for broadcasting.
...broadcasting on long wave.
...1500m on long wave.
N-UNCOUNT
long wave         
¦ noun a radio wave of a wavelength above one kilometre (and a frequency below 300 kHz).
?broadcasting using radio waves of 1 to 10 km wavelength.
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.

Βικιπαίδεια

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 kHz.

In Europe, Africa, and large parts of Asia (International Telecommunication Union Region 1), where a range of frequencies between 148.5 and 283.5 kHz is used for AM broadcasting in addition to the medium-wave band, the term longwave usually refers specifically to this broadcasting band, which falls wholly within the low frequency band of the radio spectrum (30–300 kHz). The "Longwave Club of America" (United States) is interested in "frequencies below the AM broadcast band" (i.e., all frequencies below 520 kHz).

Παραδείγματα από το σώμα κειμένου για long wave
1. Many people don‘t have long–wave radio access these days." WICKET!
2. "They didn‘t bother to bid for the rights to the TV coverage, and their radio coverage, while excellent, is relegated to the terrible sound of long wave.
3. As the universe – including space itself – has expanded, the wavelength of that light has stretched so it now appears as long–wave infrared radiation.
4. The week–long wave of violence has cast a shadow over the latest round of Palestinian municipal elections, frayed a seven–month–old ceasefire and deflated hopes that Israel‘s Gaza pullout might open the way for a revival of peacemaking.
5. The week–long wave of violence has badly frayed a seven–month–old ceasefire and deflated hopes that Israel‘s Gaza pullout, completed on September 12, might soon open the way for a revival of peacemaking after five years of bloodshed.