dispatch telephone system
71List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
72Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
73LTR MultiNet — Systems are APCO 16 compliant LTR Trunked Radio Systems and thus are mostly found in use as public safety systems. LTR MultiNet systems usually have one or more status channels that act like a control channel in a Motorola or EDACS system,… …
74Virginia State Police — Infobox Law enforcement agency agencyname = Virginia State Police nativename = nativenamea = nativenamer = |150px formedyear = 1932 preceding1 = Virginia Division of Motor Vehicles preceding2 = dissolved = superseding = legaljuris = Commonwealth… …
75Radio communications during the September 11 attacks — This article reviews some of the details of radio communications at the September 11, 2001 World Trade Center attacks. [The purpose of revealing the operational details in this article is to allow operators of other communications networks and… …
76international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
77Nathan Stubblefield — Nathan B. Stubblefield (November 22, 1860 March 28, 1928) was an American inventor and Kentucky melon farmer. It has been claimed that Stubblefield invented the radio before either Nikola Tesla or Guglielmo Marconi, but his devices seem to have… …
78Emergency medical services in the United States — infobox country common name = United States capital = Washington, DC [cite web|url=https://www.cia.gov/library/publications/the world factbook/geos/us.html|title=All facts unless otherwise cited are from: The CIA World Fact Book|accessdate=2008… …
79Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …
80communication — I (New American Roget s College Thesaurus) Act of communicating ideas Nouns 1. communication, intercourse, conversation, speech, writing, correspondence; message, tidings, news(see information). 2. communicator, messenger, nuncio; herald, crier,… …
