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How digital radio eases spectrum congestion

Kenya has started its first live trial of Digital Sound Broadcasting (DSB) in Nairobi, launching a 12-month pilot that it says could ease chronic congestion in the popular FM (frequency modulation) ...
Keysight Technologies, Inc. (NYSE: KEYS) announced its new graphics double data rate 7 (GDDR7) transmitter compliance solution, that accelerates validation of Joint Electron Device Engineering Council ...
Dan D’Agostino Master Audio Systems has announced the launch of the Momentum Z Monoblock Amplifier at $125,000 per pair amd with an an output of 500W per channel.
Abstract: We present the first demonstration of an acoustic quadrature amplitude modulation (QAM) circuit based on polarization switching of ferroelectric thin films. Electric field control of ...
Bacteria employ complex signaling networks for adaptive gene control in changing environments. Bacterial second messenger molecules such as cyclic AMP (cAMP) relay external environmental signals into ...
Background: Recent studies suggest that amplitude-modulated transcranial alternating current stimulation (AM-tACS) may enhance cognitive functions, but its mechanisms and optimal application remain ...
“Intrabuccal administration of amplitude-modulated 27.12 MHz radiofrequency electromagnetic fields (AM RF EMF) resulting in the systemic delivery of low and safe levels of AM RF EMF has shown activity ...
1 Faculty of Electrical Technology and Engineering, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. 2 Faculty of Electrical Engineering Technology, University Malaysia Perlis (UniMAP), Perlis, ...
Abstract: We experimentally demonstrate the transmission of 100-Gb/s 6-ary pulse amplitude modulation signal over 2-km standard single-mode fiber using a 1.55-μm directly-modulated laser (DML) ...
We recently saw how certain audio power amplifiers can be used as oscillators. This Design Idea shows how those same parts can be used for simple amplitude modulation, which is trickier than it might ...