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Radio Communication:     more books (100)

Practical Radio Resource Management in Wireless Systems (Artech House Universal Personal Communications Series.) by Sofoklis A. Kyriazakos, George T. Karetsos, 2004-04 Introduction to Digital Professional Mobile Radio (Artech House Mobile Communications Library) by Hans-Peter A. Ketterling, 2004-01 Railroad Radio: Hearing and Understanding Railroad Radio Communications & Systems by Vincent Reh, 1996-08 Test Equipment for the Radio Amateur by Henry Lou Gibson, 1995-12 Third Generation Wireless Communications, Volume 1: Post Shannon Signal Architectures by George Calhoun, 2003-01-01 Indoor Radio Planning: A Practical Guide for GSM, DCS, UMTS and HSPA by Morten Tolstrup, 2008-06-30 RDS: The Radio Data System (Artech House Mobile Communications Library) by Dietmar Kopitz, 1998-10-31 PRACTICAL RADIO COMMUNICATION. PRINCIPLES - SYSTEMS- EQUIPMENT - OPERATION. by A. & J. Hornung Nilson, 1943 Principles of Radio Communications (Focal Telecommunications Pocket Book Series) by Fraidoon MAZDA, 1996-05-30 The principles underlying radio communication Mathematics for radio and communication, by George Frederick Maedel, 1939 Ultra-Wideband Pulse-based Radio: Reliable Communication over a Wideband Channel (Analog Circuits and Signal Processing) by Wim Vereecken, Michiel Steyaert, 2009-04-29 Radio's Hidden Voice: The Origins of Public Broadcasting in the United States (History of Communication) by Hugh Richard Slotten, 2009-06-25 Cognitive Radio Networks: Architectures, Protocols, and Standards (Wireless Networks and Mobile Communications)

lists with details

81. Surrey Raynet
    Radio amateurs offering radio communications during emergencies.  
    http://www.surreyraynet.net/
    
    Extractions: Providing supplementary emergency communications for the community. objGB = new Object;objGB.wtsclock = "wtsclock024.swf";objGB.color = "FF9900";objGB.wtsid = "GB";objGB.width = 200;objGB.height = 200;objGB.wmode = "transparent";showClock(objGB); As a part of the voluntary nation-wide Raynet organization, Surrey Raynet exists to provide supplementary radio communications in Emergency situations that may occur in the county of Surrey. Raynet can only provide supplementary communications. Our insurance does not permit involvement in other activities, such as marshalling � traffic control etc. Civil emergency control is the responsibility of Surrey Police assisted by the Surrey Contingency Planning Unit (CPU). Normally it would be the CPU who would bring Surrey Raynet to Stand-up status, although any of the User Services can directly request Raynet assistance, at any time. Surrey Raynet will assist other counties when requested. Comments and suggestions about this site are welcome and should be sent to the Surrey Raynet Webmaster.

82. Radio Communication - How Does Space Weather Affect Us? - How Does The Earth Def
    Sun trek (www.suntrek.org) is packed with spectacular images and movies of the Sun from solar space observations which can be downloaded for classroom work.'  
    http://www.suntrek.org/sun-earth-connection/what-is-space-weather/space-weather-
    
    Extractions: Sun-Earth connection what is space weather? does space weather affect us? radio communication ... danger to astronauts These days, although most around-the-world communications use satellites to relay the signals, some systems still use a special region of the Earth's atmosphere called the ionosphere. High up in the Earth's atmosphere (between 100 - 300 km) is a layer called the ionosphere . As the name suggests, some of the atoms in that layer are ionised by radiation from the Sun. If a radio signal is sent up into the atmosphere, it bounces off the ionosphere just like light bouncing off a mirror. This effect was first discovered by Marconi. This diagram shows the effect the ionosphere has. With an ionosphere Without an ionosphere With an X-ray storm Now when a solar flare goes off and solar weather has an X-ray storm, more atoms in the lower part of the ionosphere are ionised by the X-rays . That's really good in one way because it means the X-rays are absorbed and cannot reach us! However it also means that the

83. Auto Redirect To Aussicom Home Page
    Commissions, designs, builds and installs digital radio and other communication systems.  
    http://www.aussicom.com.au/

84. Underwater Radio Communication
    Underwater Radio Communication by Lloyd Butler VK5BR (Originally published in Amateur Radio, April 1987) How far can we communicate underwater in the sea or in a lake.  
    http://www.qsl.net/vk5br/UwaterComms.htm
    
    Extractions: How far can we communicate underwater in the sea or in a lake. How large is the signal attenuation and what Frequency can be used? Could we use 1.8 MHz? In the following paragraphs, we attempt to answer some of these questions. INTRODUCTION One could ask why a radio amateur enthusiast might be interested in underwater cornmunications. Well, he could be interested in diving and wish to set up a communications link with the surface, or perhaps he might be interested in radio controlled boats and wish to try his hand at model submarines! On the other hand, he might just be interested in another area of experimentation because here is a field, relatively untouched by the amateur fraternity, involving different transmission techniques, different antenna designs and different equipment environmental problems. The scope of this article concerns the transmission characteristics of radio waves underwater and the extent to which the radio amateur might make use of these characteristics. The article includes examination of the transmission options for what was lowest Amateur Radio frequency (1.8MHz) when the article was first published. Of course, some countries now have an LF Amateur band and the lower attenuation at LF now opens the options further.

85. Daventry RAYNET Index Page
    Voluntary organisation of dedicated Amateur Radio enthusiasts which specialise in emergency radio communication.  
    http://www.daventryraynet.org.uk/
    
    Extractions: Primarily, County Emergency Planning officer, Red Cross, St John Ambulance Year Link to report Report is Text Only 4K OnePage Report + Pictures Princess Diana Funeral INT Waendel Walk ... Scouts Startrek No Report International Waendel walk Weedon Run Reports Reports ... Committee Members To join Daventry RAYNET or to come out on an event with us, contact

86. Radio Communication Rules | EHow.com
    Radio Communication Rules. All radio stations must conduct themselves based on the radio communication rules established by the United States Federal Communication Commission.  
    http://www.ehow.com/about_5453061_radio-communication-rules.html
    
    Extractions: Home Hobbies Ham Radio ... Radio Communication Rules By Andrea Austin eHow Contributor updated: September 24, 2009 I want to do this! What's This? All radio stations must conduct themselves based on the radio communication rules established by the United States Federal Communication Commission. This group is also known as the FCC. These rules are set out for both the AM and the FM stations. There are even specific rules on how to properly and legally operate a CB. Laws set into place by the FCC are always changing based on the needs and expectations from both the government and airlines that rely on radio transmissions daily. The section of law that explains the radio communication rules is in the Code of Federal Regulations. Title 47 is the section that sets out all the rules for any kind of radio station. That includes commercial stations, low broadcast stations, ones that serve small towns or college stations and public radio stations, which are ones where there are no commercials and the station must find its operating funds elsewhere.

87. Home
    Sales and service of cellular and two way radio communications solutions for business and personal users. Regina and Saskatoon.  
    http://thewirelessage.com

88. AECOM
    Offer engineering consulting services for 2-way radio, data communication, and microwave systems. Includes current projects and technical papers .  
    http://www.ctacommunications.com/
    
    Extractions: @import "/internet1/css/print.css"; About >Architecture: LAPD headquarters lauded as exemplar of civic, sustainable design “The entire country should be looking at this,” said Jury Chair Annette Fierro about the project’s inclusion of mixed-use public space and public access. Read More >Global: AECOM + the World Architecture Festival AECOM is a proud sponsor of the World Architecture Festival, a conference where architects representing more than 80 countries worldwide can exchange ideas. AECOM is also sponsoring Urban SOS: Transformations. Read More >Global: AECOM at the IAAPA Attractions Expo 2010 AECOM will join more than 25,000 attractions professionals from around the world at the International Association of Amusement Parks and Attractions Attractions Expo 2010.

89. Monroe Project
    Provides insight into the problems of bandwidth congestion of public safety radio communications systems. Includes interviews, articles, and a table of cities.  
    http://www.davidschoenberger.net/monroe/

90. SELEX Communications ITALY
    Manufactures mobile radio communication systems for the private mobile radio market for police forces and civil organisations. Features product specifications and block drawings.  
    http://www.prod-el.com/
    
    Extractions: SELEX Communications at the Land Warfare Conference 2010 SELEX Communications, a Finmeccanica company, takes part to the Land Warfare Conference (LWC) 2010, from the 15th to the 19th of November. The LWC is one of the main international events dealing with land Defence and it takes place in Brisbane, Australia, at the Brisbane Convention and Exhibition November 5, 2010 Festival della Scienza (Science Festival) 2010 Once again this year SELEX Communications, a Finmeccanica company, is a sponsor of the Festival della Scienza held in Genoa from October 29 to November 7. With a focus on space, this eighth edition of the event includes as always workshops, entertainment and conferences, offering an innovative approach

91. Grand Traverse Mobile Communications
    Specializes in 2way radio communications and remote telemetry systems for emergency services. Located in Traverse City, Michigan.  
    http://www.fireradios.com/

92. Pennsylvania S Public Safety Radio Project
    Offers information on the project to modernize and unify the state agencies two-way radio communications systems.  
    http://www.radio.state.pa.us/

93. Entel - Manufacturers Of Two Way Radio Equipment
    Suppliers of professional radio communications equipment for land-base, marine and radio telemetry applications. Details of product specifications, service and company.  
    http://www.entel.co.uk/
    
    Extractions: AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0','width','750','height','70','movie','../../images/top_graphic_home','quality','high' ); //end AC code AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0','width','750','height','120','movie','../../images/main_banner','quality','high' ); //end AC code AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0','width','170','height','268','align','left','title','entel','movie','../../images/ht900_promo','quality','high','wmode','opaque' ); //end AC code Sept HT Series 2.0 granted NATO Numbers Aug MPT1327 radios win Rohill�s recommendation June ATIS VHF Radios Your Questions Answered Mar HT649 Gets Approval in Japan Feb New HT ATIS portables for inland waterways Dec Sept July Entel's new auto-update programmer May Changes to Entel I.S. Radio Approvals Mar HT644 takes over where the HT640 left off Nov New "Release 2.0.1.1" for Series 2.0

94. Consam Home Page
    supply, service and rent of all type of radios communications equipment, including Maxon, Kenwood, Icom, and Yaesu. We manufacture a range or rack chargers to suit many two-way radios.  
    http://www.consam.com/
    
    Extractions: This is the website of Consam Communications. Based in Leicester, established in 1981, by the Wainwright brothers, Chris and Nick, Consam are two-way radio specialists offering many types of VHF and UHF radio equipment from all the main manufacturers. In addition to the supply, rental and service of radio equipment, Consam also manufacture a wide range of desk top power supplies and 6 way rack chargers. Consam are independent dealers, meaning that we are not tied down to products of any single manufacturer, and are free to offer all makes of two-way radio......which means that we can offer our customers the best radio for their needs. We can supply equipment from Kenwood, Motorola, Mototrbo digital radio, Entel, Icom, HYT, and Maxon. Consam Communications are now pleased to announce that we have been appointed as a Kenwood Approved Distributor In addition we now carry the full range HYT radios, from the TC2100 license free unit, from the TC518, TC600, TC610, and TC620 through to the feature packed TC700 radios. Our new favourite radio for our rental fleet is the tough and water resistant TC610 (shown to the left) We also recommend the TR50 low power repeater radio that is ideal for all type of large sites that need a talk through system to provide the coverage. HYT have also released an ATEX version of the TC700 radio, making it ideal for the most demanding situations, where safety is not an option.

95. 2CL Communications Ltd
    Mobile radio communications for people on the move. Two-way radio, lone worker and data for on-site and wide area applications.  
    http://www.2cl.co.uk/
    
    Extractions: Skip to navigation 2CL Communications Ltd Two Way Radio Radio Hire Major Incident Alarms Systems: Explained Product Overview Features Fast Find Long or Short Term 2 - 2000 Radios Modern and Extensive Fleet Trunked System Cost Effective COMAH Alarms Public Address Site Warning Off Site Warning Alarm Systems Click Here Click Here Click Here Maintenance Consultancy Services Wireless Links With so much choice available, its important to find your best fit solution. Let us complete your communications Jigsaw. Motorola Canopy Wireless Broadband Networks Point to Point Connect Offices Event Connectivity Radio and Systems Maintenance Warranty Support Options 24/7 Service Click Here Click Here Click Here contact@2cl.co.uk Shortcuts About Us Contact Us News Brands ... Major Incident (MIA) SPECIAL OFFER SPECIAL OFFER ISO 9001 FS 0049 Registered Address: Unit C, Woodside Trade Centre, Parham Drive, Eastleigh, Hampshire SO50 4NU Company Registration Number: 3793390 T: 02380 33 64 11 F: 02380 72 00 38 E: contact@2cl.co.uk Login Home Need Help?

96. Walkie Talkies | 2 Way Radios | Digital Two Way Radio | Taxi Radios | Rent And H
    Supplies commercial and licence free radios and radio communications equipment. Located in the Midlands, United Kingdom.  
    http://www.netradios.co.uk/
    
    Extractions: A wide range of hand portable radios for.. 340 Series Motorola Vertex VX-231 Motorola CM140 Find out more about us Midland Radio Links Ltd is an independent Midlands based company, serving the whole UK, supplying a wide range of equipment from the leading manufacturers. Read more WEE Regulations The Waste Electrical and Electronic Equipment (WEEE) Directive is now UK law.

97. Radio Hire,Radio Leasing,Radio Repairs,Radio Accessories
    Supplies, installs, and services 2-way radio equipment for commercial and semi state bodies. Includes company profile and product information. Dublin, Ireland.  
    http://ircl.ie/

98. Comtran Associates Inc.
    Full service two way radio and communication specialist.  
    http://www.comtran-radio.com/
    
    Extractions: Call Toll Free 1-866-531-7676 Our Vehicles Tracking Solution is approved for New York City Paratransit Electronic Record System. Call 1-866-531-7676 for details or go to www.streettrek.com Motorola Portable Radios The next-generation professional two-way radio communications solution is here. Improve personnel safety, increase productivity and save costs with MOTOTRBO. Kenwood Portable Radios Trim and powerful, all Kenwood Commercial radios are built to rigorous ISO-9001 standards for design, manufacturing and engineering. For over 50 years, Kenwood has been building products to high standards of engineering excellence. Comtran Associates offers an extensive choice of Kenwood radios to meet your needs. 220 MHZ Trunking CX2 Technologies CX2 Technologies (SEA) 220 MHz voice and data capable dispatch radio systems meet the demanding requirements of today's SMR operators and users. The unit employs a narrowband linear modulation technique which allows for more efficient use of the radio spectrum than conventional frequency modulation (FM). Repeaters The TKR-850 Base Station/Repeaters are a basic, self-contained 25W continuous duty rack mount base station/repeater. The TKR-850 UHF is 25-40 watts adjustable power, wide/narrow channel spacing per channel and has programmable AUX Input/Output functions. This base station/repeater features DSP processed QT/DQT and companded audio (in simplex base operation).

99. Custom Radio Communications Ltd.
    Land mobile two-way dealer serving Kansas City, Missouri.  
    http://www.crcltd.com/

100. TCS Communications
     Two-way radio communications products. Digital cell phones and paging.  
     http://tcscommunications.com/

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