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Tuning dial on 1946 Dynatron Merlin T.69 console radio receiver, showing LW wavelengths between 800 and 2000 metres (375–150 kHz). In radio, longwave, long wave or long-wave, [1] and commonly abbreviated LW, [2] refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band.
On 30 May 2023, the BBC announced that BBC Radio 4 will stop broadcasting on long wave but did not set a date. Opt-out programming ended on 31 Mar 2024. Burghead 154m Omnidirectional aerial, guyed steel lattice mast, height 154 metres (505 ft) 50
Outgoing long-wave radiation (OLR) has been monitored and reported since 1970 by a progression of satellite missions and instruments. Earliest observations were with infrared interferometer spectrometer and radiometer (IRIS) instruments developed for the Nimbus program and deployed on Nimbus-3 and Nimbus-4.
From the very early days of radio, large oceangoing vessels carried powerful long-wave and medium-wave transmitters. High-frequency allocations are still designated for ships, although satellite systems have taken over some of the safety applications previously served by 500 kHz and other frequencies.
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Far infrared (FIR) or long wave refers to a specific range within the infrared spectrum of electromagnetic radiation. It encompasses radiation with wavelengths ranging from 15 μm ( micrometers ) to 1 mm, which corresponds to a frequency range of approximately 20 THz to 300 GHz.
The three longwave transmission towers of Junglinster transmitter. The Junglinster Longwave Transmitter is a longwave broadcasting facility used by RTL near Junglinster, Luxembourg, which went into service in 1932.
The stock I would buy to bet on the AI boom this year and over the long term is Nvidia ... Nvidia has benefited from the initial wave of AI growth as data centers built out their infrastructure ...