Using technological and scientific knowledge to solve practical problems is call _______________.

_______________ are the improvements to an existing technological product, system, or method.

________ communication is sending one message to many different receivers.

Radio emerged as a ________ service during World War I.

Early radio was simply a means of _________ communication.

™

The original term broadcast is referred to as the literal sowing of ______

Broadcasting is the distribution of audio and video content to a _____ audience via radio, television, or other means

Broadcasting is the act of _______speech, music, visual images, etc., as by radio or television

Broadcasting was first adopted by early radio engineers from the ______ United States

_____is the discipline, art and profession of acquiring and applying scientific, mathematical, economic, social, and practical knowledge to design and build structures, machines, devices, systems, materials and processes that safely realize solutions to the needs of society.

_____ engineers are specialists within the electrical engineering field. They work with devices that transmit or receive radio waves, including wireless equipment, radios, and cellular phones. A background in general electronics, physics, and math is needed to design and improve wireless networks

_____ it refers to the sending, reception and processing of information by electrical means

It selects symbols (letters, numbers, words, sounds, etc) from an alphabet (or ensemble) of possible symbols

Audio, Picture/Graphic, video are different _____ of information

•Transmitter Is a collection of electronic components and circuits designed to convert the information into a ______ suitable for transmission over a given medium

Transmitter processes Involved are modulation, multiplexing, encoding, encryption, and _____.

•Channel is the _____ by which the electronic signal is sent from one place to another

_____is a collection of electronic components and circuits that accept the transmitted message from the channel and convert it back into a form understandable by humans

Basic Requirements for ECS s to be ____ and fast

____ services used codes were sent and relayed to different distant places using electrical pulses.

_____ is another name for radio amateur’s personal expression of the art of radio

Radio was discovered in _____

ARRL (American Relay Radio League) was cofounded in 1914 by its first president, ______

For _____ operation, require a code speed of 5 words per minute (WPM) or 25 characters per minute + 20 multiple choice/essay written exam (rules, regulations and operating procedures).

For ____operation, it require a higher code speed of 20 WPM with a written technical exam on advanced radio theory.

•Telephone broadcasting (1881–1932): the earliest form of electronic broadcasting, created by French inventor Clément Ader in _____.

Webcasting of video/television and audio/radiostreams: offers a mix of traditional radio and television station broadcast programming with internet-dedicated webcast programming were started from circa ______.