- published: 12 Feb 2014
- views: 15152
There are two types of radio networks currently in use around the world: the one-to-many broadcast network commonly used for public information and mass media entertainment; and the two-way radio type used more commonly for public safety and public services such as police, fire, taxicabs, and delivery services. Cell Phones are able to send and receive simultaneously by using two different frequencies at the same time. Many of the same components and much of the same basic technology applies to all three.
The Two-way type of radio network shares many of the same technologies and components as the Broadcast type radio network but is generally set up with fixed broadcast points (transmitters) with co-located receivers and mobile receivers/transmitters or Transceivers. In this way both the fixed and mobile radio units can communicate with each other over broad geographic regions ranging in size from small single cities to entire states/provinces or countries. There are many ways in which multiple fixed transmit/receive sites can be interconnected to achieve the range of coverage required by the jurisdiction or authority implementing the system: conventional wireless links in numerous frequency bands, fibre-optic links, or micro-wave links. In all of these cases the signals are typically backhauled to a central switch of some type where the radio message is processed and resent (repeated) to all transmitter sites where it is required to be heard.
The Sounder for NBC Radio Network News from 1975 to C. 1985
ALSO SEE: http://JFK-Assassination-As-It-Happened.blogspot.com
http://monitorbeacon.net
http://1975-world-series-dvd.blogspot.com
more at http://showbiz.quickfound.net/ "Behind the scenes tour of NBC's radio and television broadcasting facilities at Rockefeller Center, New York City." NEW VERSION with improved video & sound: https://www.youtube.com/watch?v=Nz_fJPKVQpM Public domain film from the Library of Congress Prelinger Archive, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). http://en.wikipedia.org/wiki/National_Broadcasting_Company The National Broadcasting Company (NBC) is an American commercial broadcasting television network and former radio n...
Radio Broadcasting & Old Time Radio playlist: https://www.youtube.com/playlist?list=PL18A480E27C4EDD07 more at http://quickfound.net "Westinghouse film about commercial radio in the United States." A history of commercial radio broadcasting beginning with KDKA radio in 1920, followed by a description of the state of the Old Time Radio art as of 1944. Public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). http://creative...
Audio of the NBC radio broadcast of the initial hours of D-day from June 6, 1944, 3:30AM EWT, accompanied by video from a Coast Guard produced motion picture film about Operation Overlord.
This is a wonderful segment from the NBC Radio Network's long-running series "Monitor". It's a "Year in Review" retrospective, with host Frank McGee guiding us through the top news stories of the year 1962. This extremely well-done "Monitor" episode first aired on December 30, 1962. SOURCE: http://MonitorBeacon.net/sounddownloads.html ALSO SEE: http://JFK-Archives.blogspot.com/2014/01/newsreels-1962.html
The Sounder for NBC Radio Network News from 1975 to C. 1985
http://monitorbeacon.net
ALSO SEE: http://JFK-Assassination-As-It-Happened.blogspot.com
More than 2-and-a-half hours of JFK assassination coverage on 11/22/63 from the NBC Radio Network. ALSO SEE: http://JFK-Assassination-As-It-Happened.blogspot.com
http://1975-world-series-dvd.blogspot.com
More than 2-and-a-half hours of JFK assassination coverage on 11/22/63 from the NBC Radio Network. ALSO PLEASE VISIT MY JFK WEBSITE BELOW: http://JFK-Assassination-As-It-Happened.blogspot.com
News and commentary from the NBC Radio Network on November 23, 1963, the day after JFK was assassinated.