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A radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. Radio waves are electromagnetic waves with frequencies between about 30 Hz and 300 GHz. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the ...
Pictorial diagram of a simple spark-gap transmitter from a 1917 boy's hobby book, showing examples of the early electronic components used. It is typical of the low-power transmitters homebuilt by thousands of amateurs during this period to explore the exciting new technology of radio.
A relative of mit'a (federal work) is the modern Quechua system of Minka or faena, which is mostly applied in small-scale villages. The Minka was adopted during the 1960s on large-scale federal projects of Peru .
UConn Huskies head coach Jim Mora warned other schools against tampering with his players following the team's Fenway Bowl win over North Carolina.
By David Lawder. WASHINGTON (Reuters) -The Biden administration announced on Monday a last-minute trade investigation into older Chinese-made "legacy" semiconductors that could heap more U.S ...
Samsung Electronics became the largest shareholder of South Korea's Rainbow Robotics, the robotics company said in a regulatory filing on Tuesday. Samsung, which had previously invested in the ...
The transmitter oscillator drives the transmitter plates in opposite phase (180° phase difference) by a high alternating voltage, and the load is connected between the two receiver plates. The alternating electric fields induce opposite phase alternating potentials in the receiver plates, and this "push-pull" action causes current to flow back ...
(Reuters) - Safety and enterprise security services provider Motorola Solutions raised its full-year revenue and profit forecasts on Thursday, as clients turn to the firm for its security-focused ...