specialized mobile radio
1Specialized Mobile Radio — The Specialized Mobile Radio system (SMR) is a conventional two way radio system, or trunked radio system, operated by a service in the 800 or 900 MHz bands. Some systems with advanced features are referred to as an Enhanced Specialized Mobile… …
2Mobile radio — This article is about professional equipment. For mobile radios used in amateur radio, see amateur radio mobile operation. Mobile radio or mobiles refer to wireless communications systems and devices which are based on radio frequencies, and… …
3Mobile phone spam — is a form of spamming directed at the text messaging service of a mobile phone. It is described as mobile spamming, SMS spam, text spam or m spam. As the popularity of mobile phones surged in the early 2000s, frequent users of text messaging… …
4Mobile weapons — This article is about fictional weapons from the Gundam series. For mobile weapons in the real world, see Maneuver warfare. In the Gundam terminology, the terms normal suit (Universal Century) and astrosuit (After Colony) are used to refer to… …
5Radio 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… …
6Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
7Citizens' band radio — Typical 1980s CB base station, used with outdoor antenna. This radio may also be used in an automobile, since it is powered by 13.8V DC. Shown with Astatic Power D 104 desk mic …
8Two-way radio — receiver which only receives content. Two way radios are available in mobile, stationary base and hand held portable configurations. Hand held radios are often called walkie talkies or handie talkies. A push to talk or Press To Transmit button is …
9Maritime mobile amateur radio — An emergency portable boat radio transceiver, Museal ship S/S Sołdek in Gdańsk, Poland Most countries amateur radio licences allow licensed operators to install and use radio transmission equipment while at sea. Such operation is known as… …
10Marine VHF radio — A standard handheld maritime VHF, mandatory on larger vessels under the GMDSS rules …
