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Radio frequency --- Radio frequency modulation --- FM radio --- Frequency modulation, Radio --- Angle modulation --- Modulation (Electronics)

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When Breeze FM, a radio station in the provincial Zambian town of Chipata, hired an elderly retired schoolteacher in 2003, no one anticipated the skyrocketing success that would follow. A self-styled grandfather on air, Gogo Breeze seeks intimacy over the airwaves and dispenses advice on a wide variety of grievances and transgressions. Multiple voices are broadcast and juxtaposed through call-ins and dialogue, but free speech finds its ally in the radio elder who, by allowing people to be heard and supporting their claims, reminds authorities of their obligations toward the disaffected. Harri Englund provides a masterfully detailed study of this popular radio personality that addresses broad questions of free speech in Zambia and beyond. By drawing on ethnographic insights into political communication, Englund presents multivocal morality as an alternative to dominant Euro-American perspectives, displacing the simplistic notion of voice as individual personal property-an idea common in both policy and activist rhetoric. Instead, Englund focuses on the creativity and polyphony of Zambian radio while raising important questions about hierarchy, elderhood, and ethics in the public sphere. A lively, engaging portrait of an extraordinary personality, Gogo Breeze will interest Africanists, scholars of radio and mass media, and anyone interested in the history and future of free speech.

Radio broadcasting --- Mass media --- Social aspects --- Gogo Breeze. --- Breeze FM (Radio station : Zambia) --- Chinyanja / Chichewa. --- Zambia. --- elderhood. --- ethnography. --- free speech. --- multivocal morality. --- obligation. --- public sphere. --- radio. --- voice.

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This book covers the fundamental principles behind the design of ultra-low power radios and how they can form networks to facilitate a variety of applications within healthcare and environmental monitoring, since they may operate for years off a small battery or even harvest energy from the environment. These radios are distinct from conventional radios in that they must operate with very constrained resources and low overhead.  This book provides a thorough discussion of the challenges associated with designing radios with such constrained resources, as well as fundamental design concepts and practical approaches to implementing working designs.  Coverage includes integrated circuit design, timing and control considerations, fundamental theory behind low power and time domain operation, and network/communication protocol considerations.   • Enables detailed understanding of the design space for ultra-low power radio; • Provides detailed discussion and examples of the design of a practical low power radio network; • Compares a variety of low power transmission and radio styles, including traditional continuous wave radio, wake up radios, and impulse radios; • Includes detailed design techniques and examples of integrated circuits for low power impulse radio transceivers, with discussion of timing control and synchronization.  .

Radio frequency modulation. --- Low power radio. --- Ultra-wideband devices. --- Radio --- Transmitters and transmission. --- Ultra-broadband devices --- Ultrawideband devices --- Radio transmission --- Transmitting sets, Radio --- Low power FM radio --- LPFM radio --- FM radio --- Frequency modulation, Radio --- Engineering. --- Electronics. --- Microelectronics. --- Electronic circuits. --- Circuits and Systems. --- Electronics and Microelectronics, Instrumentation. --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electrical engineering --- Physical sciences --- Construction --- Industrial arts --- Technology --- Radio broadcasting --- Radio stations --- Electromagnetic devices --- Low voltage systems --- Angle modulation --- Modulation (Electronics) --- Equipment and supplies --- Systems engineering. --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Low voltage integrated circuits.

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The US ushered in a new era of small-scale broadcasting in 2000 when it began issuing low-power FM (LPFM) licenses for noncommercial radio stations around the country. Over the next decade, several hundred of these newly created low-wattage stations took to the airwaves. This book describes the practices of an activist organisation focused on LPFM during this era. Despite its origins as a pirate broadcasting collective, the group eventually shifted toward building and expanding regulatory access to new, licensed stations.

TECHNOLOGY & ENGINEERING --- History --- Low power radio --- Community radio --- Alternative radio broadcasting --- Radio broadcasting --- Radio broadcasting policy --- Pirate radio broadcasting --- Journalism & Communications --- Radio & TV Broadcasting --- Political aspects --- Citizen participation --- Citizen participation. --- Offshore commercial radio --- Offshore radio broadcasting --- Radio pirates --- Radio stations --- Radio broadcasting and state --- Broadcasting policy --- Radio --- Radio industry and trade --- Broadcasting --- Freedom of information --- Government publicity --- Mass media --- Alternative commercial radio --- Countercultural commercial radio --- Countercultural radio broadcasting --- Freeform radio broadcasting --- Progressive radio broadcasting --- Underground radio broadcasting --- Association radio --- Community-access radio --- Free radio --- Local mass media --- Ethnic radio broadcasting --- Low power FM radio --- LPFM radio --- Low voltage systems --- Government policy --- E-books

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This book explores the design of ultra-low-power radio-frequency integrated circuits (RFICs), with communication distances ranging from a few centimeters to a few meters. Such radios have unique challenges compared to longer-range, higher-powered systems. As a result, many different applications are covered, ranging from body-area networks to transcutaneous implant communications and Internet-of-Things devices. A mix of introductory and cutting-edge design techniques and architectures which facilitate each of these applications are discussed in detail. Specifically, this book covers:.

Engineering. --- Circuits and Systems. --- Signal, Image and Speech Processing. --- Electronic Circuits and Devices. --- Systems engineering. --- Ingénierie --- Ingénierie des systèmes --- Low power radio. --- Low voltage integrated circuits. --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Low power FM radio --- LPFM radio --- Low power consumption chips --- Low power integrated circuits --- Reduced voltage integrated circuits --- Electronic circuits. --- Low voltage systems --- Radio broadcasting --- Integrated circuits --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Signal processing. --- Image processing. --- Speech processing systems. --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication) --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Low power radio --- Radio frequency integrated circuits --- Low voltage integrated circuits --- RFICs (Integrated circuits) --- Radio circuits