Radio has included HF, VHF, satellite and radio relay as well as modern tactical trunk systems.

Originally the teachers communicated with the children via radio, but now satellite telecommunication is used instead.

country code-267 ; international calls are made via satellite, using international direct dialing ; 2 international exchanges ; digital microwave radio relay links to Namibia, Zambia, Zimbabwe, and South Africa ; satellite earth station-1 Intelsat ( Indian Ocean ) ( 2007 )

extensive microwave radio relay system and a domestic satellite system with 64 earth stations.

** Domestic: extensive microwave radio relay links ; domestic satellite system with 3 earth stations

Colombia ’ s telecommunication system includes INTELSAT, 11 domestic satellite Earth stations, and a nationwide microwave radio relay system.

* Satellite radio: In June 2005, the CRTC outraged some Canadian cultural nationalists ( such as the Friends of Canadian Broadcasting ) and labour unions by licencing two companies, Canadian Satellite Radio and Sirius Canada to offer satellite radio services in Canada.

Supporters of the decision argue that satellite radio can only be feasibly set up as a continental system, and trying to impose 35 % Canadian content across North America is quite unrealistic.

They also argue that satellite radio will boost Canadian culture by giving vital exposure to independent artists, instead of concentrating just on the country's stars, and point to the CRTC's successful extraction of promises to program 10 % Canadian content on satellite services already operational in the United States as important concessions.

While an unlicensed satellite dish can often be identified easily, satellite radio receivers are much more compact and can rarely be easily identified, at least not without flagrantly violating provisions against unreasonable search and seizure in the Canadian Charter of Rights and Freedoms.

Some observers argued that this influenced the CRTC's June 2005 decision to ease Canadian content restrictions on satellite radio ( see above ).

In addition to the direct applications ( mp3 players or computers ), digitally compressed audio streams are used in most video DVDs ; digital television ; streaming media on the internet ; satellite and cable radio ; and increasingly in terrestrial radio broadcasts.

barely adequate wire and microwave radio relay service in and between urban areas ; domestic satellite system with 14 earth stations

Web conferencing, videoconferencing, educational television, Instructional television are examples of synchronous technology, as are direct-broadcast satellite ( DBS ), internet radio, live streaming, telephone, and web-based VoIP.

The ability to intercept communications depends on the medium used, be it radio, satellite, microwave, cellular or fiber-optic.

; International: landing point for both the SEA-ME-WE-3 AND SEA-ME-WE-4 submarine cable networks ; linked to the international submarine cable FLAG ( Fiber-Optic Link Around the Globe ); satellite earth stations-2 Intelsat ( Atlantic Ocean and Indian Ocean ), 1 Arabsat, and 1 Inmarsat ; tropospheric scatter to Sudan ; microwave radio relay to Israel ; a participant in Medarabtel

International systems are open wire to Sudan and Djibouti ; microwave radio relay to Kenya and Djibouti ; satellite earth stations-3 Intelsat ( 1 Atlantic Ocean and 2 Pacific Ocean ).

His work, as important as it was in its own right, was a part of a continuum of progress in communications and electronics that since his time has brought forward color television, the personal computer, the Internet, cable and satellite radio and TV, personal mobile phones, audio, video and computing, digital stereo radio on both the medium wave and VHF-FM bands, and digital high definition television on VHF, UHF, cable and satellite.

Initially it was difficult to obtain a digital satellite or terrestrial receiver without a subscription to Sky or ONdigital respectively, but now the channel forms an important part of the Freeview package of channels.

A local subscription service, KTV carries satellite channels such as ESPN, Discovery CNN International and Turner Classic Movies ( from the United States ) and BBC World from the United Kingdom.

Advertising tends to be more limited on these media, because of reliance on subscription revenues ( in the case of satellite ) and smaller audience and fewer connections to advertisers ( in the case of Internet-only shows, which usually lack the full sales departments of terrestrial and satellite broadcasters ).

Besides the large broadcast networks ( which are free for anyone with a TV and an antenna ), there are also many networks available only with a subscription to cable or satellite television, like CNN.

In order to accomplish this, a sports bar would ordinarily need to purchase a separate cable or satellite subscription for each display for which independent control is desired.

The CRTC approved the subscription radio application, as well as two others for satellite radio service, on June 16, 2005.

While in Europe many primarily-FM radio stations provide an additional unencrypted satellite feed, there are also subscription based digital packages of numerous channels that do not broadcast terrestrially, notably in the US.

Austar Limited provides subscription satellite television services.

In certain regions of the world, especially in North America, DBS is used to refer to providers of subscription satellite packages, and has become applied to the entire equipment chain involved.

This branding came after the successful launch of its first satellite, EchoStar I in December 1995 and marked the beginning of the company offering subscription television services.

The channel is carried as a basic subscription channel on digital satellite ( SKY ) and digital cable ( Virgin Media.

The C-band is primarily used for open satellite communications, whether for full-time satellite TV networks or raw satellite feeds, although subscription programming also exists.

This use contrasts with direct broadcast satellite, which is a completely closed system used to deliver subscription programming to small satellite dishes that are connected with proprietary receiving equipment.

* US satellite TV subscription provider for BUDs

* Canadian satellite TV subscription provider for BUDs

In conjunction with his move to satellite radio, Stern launched Howard Stern on Demand, a subscription video-on-demand service, on November 18.

All satellite programming ( some of which is available free-to-air via Freesat or free-to-view via Freesat from Sky ; the remainder requires a subscription to Sky ), is broadcast using either DVB-S or DVB-S2.

NHK World Premium Television broadcasts a mixture of news, sports and entertainment in Japanese worldwide via satellite as a subscription service.

However, as part of the upgraded audio stream, XMRO became available as a $ 2. 99 / month add-on service with a satellite radio subscription, or as a stand-alone Internet-only service at $ 12. 99 / month.

* SR International-Radio Sweden ( web, satellite )

The engines were fitted with variable valve timing, satellite navigation was included as a standard feature along the range and the sporty Avensis 2. 0 L SR ( with body kit and tuned suspension ) was added but overall sales remained low.

Conceptual drawing of a Luch geosynchronous satellite, referred to in the West as " Altair / SR relay satellite ".

There is no access from southbound I-664 to southbound US 17 ; that movement is made via the next interchange, a cloverleaf interchange with SR 135 ( College Drive ) that serves satellite campuses of Tidewater Community College and Old Dominion University and the community of Churchland.

There is no access from southbound I-664 to southbound US 17 ; that movement is made via the next interchange, a cloverleaf interchange with SR 135 ( College Drive ) that serves satellite campuses of Tidewater Community College and Old Dominion University and the Portsmouth neighborhood of Churchland.