State-supported Radio Communications Systems PDF Download
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Author: Nevada. Legislature. Legislative Commission
Publisher:
ISBN:
Category : Mobile communication systems
Languages : en
Pages : 44
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Book Description
Author: Nevada. Legislature. Legislative Commission
Publisher:
ISBN:
Category : Mobile communication systems
Languages : en
Pages : 44
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Book Description
Author: Radio Corporation of America. RCA Victor Division
Publisher:
ISBN:
Category : Mobile communication systems
Languages : en
Pages : 14
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Book Description
Author: United States. National Highway Traffic Safety Administration
Publisher:
ISBN:
Category : Communication in emergency medicine
Languages : en
Pages : 182
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Author: United States. Division of Emergency Health Services
Publisher:
ISBN:
Category : Communication in medicine
Languages : en
Pages : 48
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Book Description
In the South Carolina State Guard (SCSG), we have a Division Communications Section, and each Brigade has a Communications Section. Division operates a communications bus with 800 MHz radios primarily designed for interface with statewide Public Service communications. At First Brigade, we decided to concentrate our efforts on a more localized theater of operations, but expandable when required to cover state-wide and even world-wide communications. Modern radio communications systems, including cellular telephones, depend on a complex system of multiple radio towers with computer control over the total system. A breakdown in any part of the systems risks the loss of the total system. These systems are also extremely expensive, with each portable radio in the range of $1,000 and the central control station costing 100 times as much. The 1st Brigade, SCSG, has begun planning for communications needs after an event that could involve the loss of any or all of the systems currently used by Public Safety in the state. We are planning for a disaster at least as severe as Hurricane Katrina, involving the loss of commercial electrical power, the loss of most, if not all, functioning radio systems, and impassable roads. With no commercial power available, all radios would have to be battery operated, and use both rechargeable and disposable batteries easily and cheaply available on the local market. These radios would also have to be easy to operate, and the operators not required to have licenses. We selected radios operating in the GMRS (General Mobile Radio Service) 450 MHz band, for which the FCC will issue a 5-year license covering six radios for $75. These radios provide reliable communications up to 5 miles. Since longer range would also be required, the SCSG found a repeater that was man portable and that extended the range of the hand-held radios up to 30 miles. They also formed an amateur radio club and obtained an FCC license for very long-range communications.
Author: Dale Stacey
Publisher: John Wiley & Sons
ISBN: 9780470035092
Category : Technology & Engineering
Languages : en
Pages : 370
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Book Description
Typically, there are over twenty radio systems on board the average commercial jet aircraft dealing with communication, navigation and surveillance functions. Very high frequency (VHF) air-to-ground communication is usually the main method of information and control exchange between pilot and air traffic control. Satellite and high frequency radio links are used to complement this system for long range or oceanic information exchanges. Other communications systems are required between the airline operation centre and the pilot and sometimes between the passengers and the ground. A comprehensive guide to current systems, networks and topologies, this book covers application requirements for communication and related radio-navigation and surveillance functions in aeronautical systems. There is also an insight into future possibilities as technologies progress and airspace operation and control scenarios change. Ideal for civil aviation authorities, airspace management providers and regulatory organizations, Aeronautical Radio Communication Systems and Networks will also appeal to aircraft and radio equipment manufacturers and university students studying aeronautical or electronic engineering. Key features: Provides a broad and concise look at the various communications systems on board a typical aircraft from a theoretical, system level and practical standpoint with worked examples and case studies throughout. Considers all types of aircraft from light aircraft to large commercial jets and specialised supersonic aircraft. Looks at existing airport radio communication infrastructure and proposals for new very high bandwidth radio applications within the airport environment. Provides a complete list of formulae for engineering design analysis and quick checks on system performance or interference analysis.
Author: United States. President's Task Force on Communications Policy
Publisher:
ISBN:
Category :
Languages : en
Pages : 144
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Book Description
Author: United States Army
Publisher:
ISBN: 0359129161
Category : Fiction
Languages : en
Pages : 270
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Book Description
This field manual (FM 6-02.53), "Tactical Radio Operations," serves as a reference document for tactical radio systems. (It does not replace FMs governing combat net radios, unit tactical deployment, or technical manuals [TMs] on equipment use.) It also provides doctrinal procedures and guidance for using tactical radios on the modern battlefield. This FM targets operators, supervisors, and planners, providing a common reference for tactical radios. It provides a basic guidance and gives the system planner the necessary steps for network planning, interoperability considerations, and equipment capabilities.
Author: United States. Federal Communications Commission
Publisher:
ISBN:
Category : Telecommunication
Languages : en
Pages : 164
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Book Description
Author: United States. Office of Telecommunications Policy
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 228
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Book Description
