TV Notes - JOUR 1001 Notes Ch. 7=Radio, Recording, and...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
JOUR 1001 Notes Ch. 7=Radio, Recording, and Popular Music A. Radio’s Prehistory 1. A wired and electronic transmissions of media messages require: a. Power b. Symbols c. Transmission-system B. Early History 1. Guglielmo Marconi successfully transmitted sound across the English Channel in 1899 and across the Atlantic in 1901. 2. 1903: Reginald Fessenden invented liquid barretter— audio device permitting reception of wireless voices 3. 1906: Lee DeForest invented audion tube---vacuum tube that improved and amplified wireless signals. C. More Early History 1. 1877: Thomas Edison patented the “talking machine”—device for duplicating sound used a hand-cranked grooved cylinder and a needle. 2. Berliner= Not only develops the microphone but also RCA Victor Records. 3. 1905: Columbia Phonograph Company introduced the two-sided disc. D. Early Broadcast 1. CHAOTIC a. Patent fights and lawsuits delayed the introduction of broadcasting to a mass audience. 2. Wireless Ship Act of 1910: required ships carrying more than 50 passengers have a working wireless and an operator. a. Increased noise and interference on the airwaves + Titanic. 3. After Titanic, Radio Act of 1912: allocate frequencies, revoke licenses, fine violators, and required wireless operators to be licensed by the Sect. of Comerance and Labor E. Titanic—April 14 th , 1912 1. Two Marconi wireless operators on board 2. Sent SOS signals to many ships 3. California was 6 miles away but didn’t respond. F.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/20/2008 for the course JOUR 1001 taught by Professor Mclean,pol during the Fall '07 term at Colorado.

Page1 / 4

TV Notes - JOUR 1001 Notes Ch. 7=Radio, Recording, and...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online