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In telecommunications, APCO-16 , (sometimes APCO Project 16 or Project 16 ) is a US standard for the characteristics and capabilities of public safety trunked radio systems. The standard development effort was started in the 1970s by the APCO, a trade association of mostly police and fire service providers. The program was funded by the Law Enforcement Assistance Administration (LEAA), a part of the US Department of Justice. [1] [2] Contents 1 Details 1.1 Project 16A 1.2 Project 16B 2 See also 3 Notes Details APCO-16 describes such characteristics and capabilities as: channel access times automated priority recognition data systems interface individuality of system users command and control flexibility system growth capability frequency use reliability With the Federal Communications Commission's pending release of the first 800 MHz [note 1] band licenses, the LEAA funded a project to develop required capabilities and standards

A central-controlled trunked system uses a control channel (as shown). Another type, Scan based trunked systems, (not shown) do not have a control channel. Frequencies are for discussion purposes and do not correspond to any specific system. A trunked radio system is two-way radio system that uses a control channel to automatically direct radio traffic. Two-way radio systems are either trunked or conventional, where conventional is manually directed by the radio user. Trunking is a more automated and complex radio system, but provides the benefits of less user intervention to operate the radio and greater spectral efficiency with large numbers of users. Instead of assigning, for example, a radio channel to one particular organization at a time, users are instead assigned to a logical grouping, a "talkgroup". When any user in that group wishes to converse with another user in the talkgroup, a vacant radio channel is found automatically by the system and the conversat

Lady Shiva Lady Shiva, as she appears on the cover of Birds of Prey vol. 2 #6 (Nov. 2010). Art by Alina Urusov. Publication information Publisher DC Comics First appearance Richard Dragon, Kung Fu Fighter #5 (December 1975) Created by Dennis O'Neil Ric Estrada In-story information Alter ego Sandra Woosan Team affiliations The Brotherhood of the Fist League of Assassins Birds of Prey Society Notable aliases Jade Canary, [1] The Paper Monkey, Tengu Mask, Master Woman, Agent Silver, Sandra Wu-San Abilities Adept Martial artist [2] Able to read body language and anticipate an opponent's actions Lady Shiva (real name Sandra Woosan , or more recently Sandra Wu-San ) is a fictional supervillainess and antiheroine appearing in American comic books published by DC Comics. The character was co-created by Dennis O'Neil and Ric Estrada, and first appeared in Richard Dragon, Kung Fu Fighter . Over time, she has become more clos