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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.
A radiator is a device that transfers heat to a medium primarily through thermal radiation.In practice, the term radiator is often applied to any number of devices in which a fluid circulates through exposed pipes (often with fins or other means of increasing surface area), notwithstanding that such devices tend to transfer heat mainly by convection and might logically be called convectors.
In a radio antenna, the feed line (feedline), or feeder, is the cable or other transmission line that connects the antenna with the radio transmitter or receiver.In a transmitting antenna, it feeds the radio frequency (RF) current from the transmitter to the antenna, where the energy in the current is radiated as radio waves.
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Perkins Diesel Conversions & Factory fitted units, by Allan T. Condie, 2nd edition 2000, ISBN 0-907742-79-3 The 4 107T was used in UK Military electricity generating sets, the engines when in need an overhaul were rebuilt by a Kent based engineering works in Ramsgate, adjacent to the inner Harbour known as Walkers Marine (Marine Engineers) Ltd. Houchins of Ashford an MOD contractor would send ...
Since the ground waves used in this band require vertical polarization, vertical antennas are used for transmission. Mast radiators are most common, either insulated from the ground and fed at the bottom, or occasionally fed through guy-wires. T-antennas and inverted L-antennas are used when antenna height is an issue.
Vertical spool 1134AM oijen nb www.1134am.nl Veldhoven 0.1 Polderpop radio 1143 Kaliningrad: 75-150 Bolshakovo Radiocenter. Test broadcasting from 13 October 2022 Radio Rossii 1152 Cluj-Napoca 400 Radio Romania Actualitati Málaga 25 RNE Radio 5 (Andalucia) Cartagena: 10 RNE Radio 5 (Murcia) 1170 Beli Križ 15 Guyed steel lattice mast, height ...
These heat exchangers are used in air conditioning and refrigeration systems, industrial and central heating and cooling systems, radiators, hot water tanks, and under-floor heating systems. Copper-based heat exchangers can be manufactured with copper tube/aluminum fin, cupro-nickel, or all-copper constructions.