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It is particularly important for wireless networks, where the alternative with collision detection CSMA/CD, is not possible due to wireless transmitters desensing (turning off) their receivers during packet transmission. CSMA/CA is unreliable due to the hidden node problem. [3] [4] CSMA/CA is a protocol that operates in the data link layer.
Wireless telegraphy or radiotelegraphy is the transmission of text messages by radio waves, analogous to electrical telegraphy using cables. [1] [2] Before about 1910, the term wireless telegraphy was also used for other experimental technologies for transmitting telegraph signals without wires.
Applications for short-range wireless devices include power meters and other remote instrumentation, RFID applications, radio-controlled models, fire, security and social alarms, vehicle radars, wireless microphones and earphones, traffic signs and signals (including control signals), remote garage door openers and car keys, barcode readers ...
Both stations used basic spark transmitters to wire antennas. After the trials and the construction of Poldhu, Bass Point became a ship to shore station until 1912. Bass Point is now a museum showing spark transmitters and receivers, they also have a rare Marconi wire detector. The Bass Point site houses the amateur radio station, GB4LD.
The Nova H1 Audio Earrings – which are purported to have embedded wireless transmitters – have single stalks. The hinge that bends around each earlobe has a smaller radius than the ones ...
A base transceiver station (BTS) or a baseband unit [1] (BBU) is a piece of equipment that facilitates wireless communication between user equipment (UE) and a network. UEs are devices like mobile phones (handsets), WLL phones, computers with wireless Internet connectivity, or antennas mounted on buildings or telecommunication towers.