* Doug Smith: Digital Signal Processing Technology: Essentials of the Communications Revolution, American Radio Relay League, ISBN 0-87259-819-5

* Digital radio in the bands currently used for AM broadcasting through DRM ( Digital Radio Mondiale );

* Digital Radio Trunking: 100, 000 ( Unofficial, Nov ' 07 )

Music drives radio technology, including wide-band FM and modern digital radio systems such as Digital Radio Mondiale.

AM 1, FM 5, Digital Radio Oceane, shortwave 0 ( 2009 )

Digital Radio Trunking-100, 000 ( Unofficial ):

Digital microwave systems were introduced to the Seychelles in 1992 and Cable & Wireless also offers other services from its Seychelles Radio coast station.

* Terminal equipment for Digital Mobile Radio ( DMR ) based systems.

* Digital terrestrial television project by Radio Televisyen Malaysia is described as a " white elephant " because it has been delayed and recently deferred because technology rapidly evolved over time.

* The Digital Radio Mondiale consortium uses WAV files as an informal standard for transmitter simulation and receiver testing.

* VHF / UHF / Microwave Radio Propagation: A Primer for Digital Experimenters

In digital radio, both the Eureka 147 system of digital audio broadcasting and the in-band on-channel HD Radio, FMeXtra, and Digital Radio Mondiale systems can multiplex channels.

International broadcasters agreed in 1985 to also use SSBSC entirely by 2015, though IBOC and IBAC digital radio ( namely Digital Radio Mondiale ) seems likely to make this irrelevant.

* 145-Interoperability And Performance Standards For Digital Line of sight Microwave Radio Equipment

The founding director of CBS News, Paul White, for whom the top award given by the broadcast news directors organization Radio Television Digital News Association ( RTDNA ) is named, Kent Cooper, who later became the longtime GM of rival Associated Press, early ABC News president Elmer Lower, Raymond Clapper, originator of the term " smoked-filled room ", Merriman Smith, Helen Thomas, Marie Colvin, Martha Gellhorn, Kate Webb, Henry Tilton Gorrell, Seymour Hersh, Lucien Carr, Neil Sheehan, Brit Hume, Keith Olbermann, New York Times columnists Thomas Friedman and Gail Collins, Washington Post columnist Richard Cohen, sportswriter and Untouchables co-author Oscar Fraley, author H. Allen Smith, military author Joe Galloway, Saigon evacuation photographer Hubert van Es, photographer Stan Stearns, 1970s White House photographer David Hume Kennerly, White House spokesmen George Reedy, Ron Nessen and Larry Speakes, longtime Las Vegas bureau manager Myram Borders, onetime CIA Director Richard Helms, who interviewed Adolf Hitler for United Press during the 1936 Olympics, diplomat Edward M. Korry, former UP correspondent to Moscow Eugene Lyons, C-SPAN founder Brian Lamb, ex-Dow Jones CEO Les Hinton, 1980's-90's Singapore President Wee Kim Wee and novelists Allen Drury, Tony Hillerman and Daniel Silva.

Thus in the UK and some other countries, the contemporary evolution of radio services is focused on Digital Audio Broadcasting ( DAB ) services or HD Radio, rather than satellite radio.

* Digital Radio Mondiale ( DRM )

Digital Radio Mondiale ( DRM ) is a digital modulation for use on bands below 30 MHz.

Thus in the UK and some other countries, the contemporary evolution of radio services is focused on Digital Audio Broadcasting ( DAB ) services or HD Radio, rather than satellite radio.

* Digital Radio Frequency Memory ( DRFM )

Amateurs also experiment with new modulation methods: for instance, the DREAM open-source project decodes the COFDM technique used by Digital Radio Mondiale.

This includes a new UHF PMR 446 MHz allocation: an eight-channel analog Personal Mobile Radio 446 MHZ ( Analog PMR446 ) with frequencies from 446. 0025 – 446. 09375 MHz ( 12. 5 kHz spacing ) FM with 0. 5 watt power output, and 16 channels for Digital Personal Mobile Radio 446 MHz ( Digital PMR 446 ).

In addition, new standards, such as Digital Radio Mondiale, are being introduced, as well as sending programs over the Web to be played back later, as " podcasts ".

Some experiments and trials are planned or under way for a digital modulation, such as Digital Radio Mondiale ( DRM ).

The Digital Radio Mondiale ( DRM ) IBOC system has been approved by the ITU for use outside North America and U. S. territories.

In the United States, iBiquity's proprietary HD Radio has been adopted and approved by the FCC for medium wave transmissions, while Digital Radio Mondiale is a more open effort often used on the shortwave bands, and can be used alongside many AM broadcasts.

* Digital Radio Mondiale, a set of digital audio broadcasting technologies

* Digital Radio Mondiale ( DRM )

An international non-profit consortium Digital Radio Mondiale ( DRM ), has introduced the public domain DRM system.

DVB, DAB ( Eureka 147 and Digital Radio Mondiale ) and FM Radio Data System all support separate time signal transmission subsystems with accuracy equal to or several orders of magnitude better than the pips, so the listener need not worry about decoding the pips to synchronize the clocks on these systems.

Digital Radio Mondiale allows for simultaneous transmission of multiple data streams alongside an audio signal.

Digital Radio Mondiale has had much more success in creating an AM system, and one that could be much less expensive to implement than any proprietary HD Radio system, although it requires new frequency.

Digital Radio Mondiale is also developing an IBOC system, likely to be used worldwide with AM shortwave radio, and possibly with broadcast AM and FM.

* Digital Radio Mondiale

Digital Radio Mondiale ( abbreviated DRM ; mondiale being Italian and French for " worldwide ") is a set of digital audio broadcasting technologies designed to work over the bands currently used for AM broadcasting, particularly shortwave.

Digital Radio Mondiale is also the name of the international non-profit consortium designing and implementing the platform.

Digital Radio Mondiale is being considered by Ofcom for introduction in Britain in 2012 on the present AM medium wave band.

On 28 September 2006, the Australian spectrum regulator, the Australian Communications and Media Authority, announced that it had " placed an embargo on frequency bands potentially suitable for use by broadcasting services using Digital Radio Mondiale until spectrum planning can be completed " " those bands being " 5950 – 6200, 7100 – 7300, 9500 – 9900, 11650 – 12050, 13600 – 13800, 15100 – 15600, 17550 – 17900, 21450 – 21850 and 25670 – 26100 kHz.

Designed with Digital Rights Management ( DRM ) abilities for copy protection.

* Janus ( DRM ), a Microsoft Digital Rights Management platform

Digital radio broadcasting is developing fast with the Voice of Russia announced on 1 July 2004, the successful implementation, and planned expansion, of its DRM broadcasts on short-wave and medium-wave.

The Consumer Broadband and Digital Television Promotion Act ( or CBDTPA ) was a United States bill proposed in 2002 that would have prohibited any kind of technology that could be used to read digital content without digital rights management ( DRM )— which prohibits copying and reading any content under copyright without permission of the copyright owner.

* Digital rights management ( DRM ), a computer means of preventing duplication or re-distribution of computer-sensible data or computer programs, in particular, computer games and electronic media.

* DRM. info ─ What you should know about Digital Restrictions Management ( and “ Technological Protection Measures ” ( TPM ))

By utilizing the attestation, curtained memory and cryptographic features of the TPM, a secure form of Digital Rights Management ( DRM ) may be developed ; critics charge that although it does not provide DRM features itself, DRM is nevertheless the primary motivation for the development of NGSCB.

Had the CBDTPA become law, it would have prohibited technology that read digital content ( such as music, video, and e-books ) without Digital Rights Management ( DRM ) that prevented access to this material without the permission of the copyright holder.

In November 2003, Johansen released QTFairUse, an open source program which dumps the raw output of a QuickTime Advanced Audio Coding ( AAC ) stream to a file, which could bypass the Digital Rights Management ( DRM ) software used to encrypt content of music from media such as those distributed by the iTunes Music Store, Apple Computer's online music store.

Responses to this concern range from the Digital Millennium Copyright Act in the United States ( and similar legislation elsewhere ) which make copy protection ( see DRM ) circumvention illegal, to the free software, open source and copyleft movements, which seek to encourage and disseminate the " freedom " of various information products ( traditionally both as in " gratis " or free of cost, and liberty, as in freedom to use, explore and share ).

On November 30, 2005 Reilly said that he was conducting an investigation of Sony BMG over their use of the XCP Digital Rights Management DRM on Sony audio CDs.

As a digital medium, DRM can transmit other data besides the audio channels ( datacasting ) — as well as RDS-type metadata or program-associated data as Digital Audio Broadcasting ( DAB ) does.

The United States Federal Communications Commission states in that: " For digitally modulated emissions, the Digital Radio Mondiale ( DRM ) standard shall be employed.