Rather, such assignments are made, as they must be, on the basis of certain overall rules and standards, representing to some extent a statistical approach to the problem, taking into account for each situation some of the variables ( e.g., power and station separations ) and averaging out others in order to achieve the balance which must be struck between protection against destructive interference and the assignment of a number of stations large enough to afford optimum radio service to the Nation.

We know that the number of radio and television impulses, sound waves, ultra-violet rays, etc., that may occupy the very same space, each solitary upon its own frequency, is infinite.

He said that on his tour the preceding year a considerable number of hours would have been available to him on Japanese radio networks, but that he had then lacked the funds to contract for them.

But the growing number of Negro-appeal radio stations, plus evidence of strong listener support of their advertisers, give time salesmen an impressive argument as they approach new prospects.

In the last decade the number of Negro-appeal radio program hours has risen at least 15 per cent, and the number of Negro-appeal stations has increased 30 per cent, according to a research man quoted by Sponsor.

There have been a number of radio adaptations of the Poirot stories, most recently twenty seven of them on BBC Radio 4 ( and regularly repeated on BBC 7 ), starring John Moffatt ( Maurice Denham and Peter Sallis have also played Poirot on BBC Radio 4, Mr. Denham in The Mystery of the Blue Train and Mr. Sallis in Hercule Poirot's Christmas ).

The station unit number was 91 and the radio call sign was NRN-1.

PolyGram ( London Records ' parent company at that time ) had pressed a number of promo singles and 12 " versions of the song, sending them out to both radio and record stores in the UK.

As the anniversary of Confederation, Dominion Day, and later Canada Day, was the date set for a number of important events, such as the first national radio network hookup by the Canadian National Railway ( 1927 ), the inauguration of the CBC's cross-country television broadcast ( 1958 ), the flooding of the Saint Lawrence Seaway ( 1958 ), the first colour television transmission in Canada ( 1966 ), the inauguration of the Order of Canada ( 1967 ), and the establishment of " O Canada " as the country's national anthem ( 1980 ).

While an exact number has not been determined, thousands of Canadians have purchased and used what they contend to be grey market radio and television services, licensed in the United States but not in Canada.

Chicago is also home to a number of national radio shows, including Beyond the Beltway with Bruce DuMont on Sunday evenings.

He was also successful with a number of radio programmes, television interviews and guest appearances on Have I Got News for You, Mock the Week, QI and The Bubble.

20 years later, almost all the radio stations in the world were using similar technology, manufactured by a number of companies.

The Decca Navigator System consisted of a number of land-based radio beacons organised into chains.

In 2008, New York City radio station Q104. 3 FM WAXQ named Don McLean's " American Pie " number 37 in their 2008 Top 1, 043 Songs Of All Time listener-generated countdown.

He opened the London radio station, Country 1035 and made a number of general television and radio appearances, where he was often mocked by the presenters.

* Radio: A number of diffuse structures emitting at radio frequencies have been found in clusters.

The number of these free electrons is sufficient to affect radio propagation.

intercity by landline, microwave radio relay and satellite communication ( KazSat ); number of fixed-line connections is gradually increasing and fixed-line teledensity is about 20 per 100 persons ; mobile-cellular usage is increasing rapidly and subscriptions now exceed 50 per 100 persons

The song would chart at number 4 on the Billboard Hot 100 and number 17 on Country radio.

A number of local and regional radio and TV broadcasters are based in the Greater Malmö area.

A few drops of rain just before midnight, when Sarah Vaughan was in the midst of her first number, scattered the more timid members of the audience briefly, but at this hour and with Sarah on the stand, most of the listeners didn't care whether they got wet.

Kabul and Jalalabad have moderate number of listeners.

Throughout the program, listeners are encouraged to dial the toll-free telephone number, 1-888-CAR-TALK ( 1-888-227-8255 ), which connects to a 24-hour answering service.

The value of a station's advertising is set by the number, age and wealth of its listeners.

Arbitron, a commercial statistical service, historically used listener diaries to statistically measure the number of listeners.

Stations usually adopt a music format to gain the greatest number of listeners for the least expense.

Commercial stations charge advertisers for the estimated number of listeners.

The Archers is the most listened to Radio 4 non-news programme, with over five million listeners, and it holds the BBC Radio programme record for the number of times listened to over the Internet, with over one million listeners.

The writing out of the character of Nigel caused much controversy among Archers ' listeners, with a large number of complaints variously expressing dismay at the death of a popular character, concerns over the manner of the dismissal of the actor, belief that the promise to ' shake Ambridge to the core ' had been over-hyped, criticism of the credibility of the script and acting for the anniversary episode, and a perceived unwillingness of the editorial team to engage with these listener complaints.

However, with the addition of Garry Meier to Roe Conn's afternoon show increased the number of listeners.

The Mayaguezs SOS and Mayday signals were picked up by a number of listeners including an employee of Delta Exploration Company in Jakarta, Indonesia who notified the US Embassy in Jakarta.

This gives the station not only a regional coverage, but a number of listeners over all of Canada.

The band recorded two sessions for John Peel's BBC Radio 1 show in 1990, and their popularity with the show's listeners saw them with three tracks in the Festive Fifty that year, with " Dreams Burn Down " and " Like a Daydream " at numbers 3 and 4 respectively, and " Taste " at number 25.

Through the use of intermediate expanders, a talker can have a unidirectional conversation with a nearly unlimited number of listeners, and using multiplexers, multiple sensors can talk to a single computer port.

As the number of wireless receiving sets increased during the early 1920s, the General Post Office came under extreme pressure from hobby listeners to allow the experimental wireless broadcasts to resume.

While Draper was driving around his Volkswagen Microbus to test a pirate radio transmitter he had built, he broadcast a telephone number to listeners as feedback to gauge his station's reception.

As a result, BBC Radio 5 Live is often the first place to hear a breaking news story, and it is this quality that appeals to a number of listeners.

Because only 10 volumes were made with four episodes each, and because a number of episodes were later returned from homemade off-air recordings by listeners, a release of the radio series was never completed on cassette.

Harrison had a number of " trademark " phrases, such as " Morning, Mom ", " Every brand new day should be opened like a precious gift ", " Stay well, stay happy, stay right here " and " Harry Harrison wishing you the best ... because that's exactly what you deserve !” Also, on the last day of every year, Harrison would bring his four children to work with him and at the end of his shift, he would join them in giving listeners New Year's wishes.

Due to lower costs and the increase in the number of listeners, more and more of these radio talks are hosted on the Internet.

Their cover of Jonathan Richman's " Don't Let Our Youth Go To Waste " was also voted into number 41 in 1989's Festive 50 by listeners to the show.

Thus, the actual number of listeners is open to speculation.

Broadcasting is the distribution of audio and video signals ( programs ) to a number of recipients (" listeners " or " viewers ") that belong to a large group.