41. A Flexible And Reliable Radio Communication Stack On Motes A Flexible and Reliable radio communication Stack on Motes. Wei A Flexibleand Reliable radio communication Stack on Motes. Technical http://www.isi.edu/~johnh/PAPERS/Ye02b.html

WriteCSS("../STYLE"); johnh: research teaching PAPERS ... about A Flexible and Reliable Radio Communication Stack on Motes Wei Ye, John Heidemann, and Deborah Estrin USC/Information Sciences Institute Abstract This technical report describes the radio communication stack on the Mica Motes developed at USC/ISI and UCLA. It includes the architecture design, stack implementation, interfaces, and some testing and measurement results. Availability This paper is available in several formats: abstract web page with pointers and cites, gzip'ed postscript PDF , paper copies can be obtained by mail to the authors Reference http://www.isi.edu/~johnh/PAPERS/Ye02b.html To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission of the authors. $Date: 2003/03/22 06:22:45 $

42. SCADDS: Radio Communication Stack On Mica Motes Internal radio communication Stack on Mica Motes. We have developeda radio communication stack on the Mica Motes running TinyOS . http://www.isi.edu/scadds/projects/commstack/

SCADDS: S calable C oordination A rchitectures for D eeply D istributed S ystems Main People Presentations and Publications Testbeds ... Internal Radio Communication Stack on Mica Motes We have developed a radio communication stack on the Mica Motes running TinyOS . It is an alternative of the standard communication stack in the TinyOS release. The stack consists of a physical layer (PHY) and a MAC layer. Following is a highlight of some new features. Flexible architecture that allows people to easily build different components at different layers. The nested header structure allows each component to freely define its own packet formats and add its header fields in packets from upper layers. Clean separation of MAC and PHY allows different MACs can be built on the same PHY. The PHY can reliably and efficiently handle variable length packets up to 250 bytes, and is robust to back-to-back packet transmission. S-MAC provides energy-efficient operations on radio Low-duty-cycle operation on radio trades off latency for energy savings. Overhearing avoidance sleep when neighbors are talking Abundant features in unicast provided by S-MAC (similar to IEEE 802.11).

43. Sepura Limited - Digital Mobile Radio Communication, Tetra Private Digital Mobil sepura, digital mobile radio communication, tetra private digital mobile radiopmr, public safety radio communication systems, voice and data communications http://www.simoco.com/

sepura, digital mobile radio communication, tetra private digital mobile radio pmr, public safety radio communication systems, voice and data communications, tetra mobile radio applications, police fire and ambulance services communications, tetra memorandum of understanding mou, etsi tetra, tetra terminals and handsets including mobiles and handportables Sepura specialises in secure TETRA based digital private mobile radio voice and data communication systems for public safety users such as Police Forces, Fire Brigade and Ambulance Services Sepura News - 02/03 Greater Manchester Police order Sepura TETRA handportables UK Police order another 10,000 TETRA terminals Sepura - "Communications for Life" Sepura designs, develops and supplies digital (TETRA) radios for the public safety market and emergency services such as police, fire and ambulance, transportation and utility companies, Government and municipal organisations. Sepura - Global Reach Sepura is headquartered in Cambridge, England and has a growing network of international distributors and partners that can supply its radios around the world. Sepura’s products are manufactured by Siemens, using the latest advanced processes at its factory in Vienna, Austria. It has supplied TETRA radios in Europe, Australasia, Asia, Southern America and the Middle East. Today, Sepura TETRA terminals are used by over 70 customers, in 30 different countries, operating on 10 different manufacturers’ infrastructure.

44. BEL India - Products - Emergency Radio For Communication System Alarm System for unmanned level crossing. Emergency radio communication System. ElectronicVoting Machine. Integrated Fish Finder and Navigation Guidance System. http://www.bel-india.com/othr_radio.htm

Other Products Conquest Energy Saver Alarm System for unmanned level crossing Emergency Radio Communication System Electronic Voting Machine Integrated Fish Finder and Navigation Guidance System. Driving Simulator Gunnery Simulator ... Technical Specifications This is a voice communication systems for communicating between the driver, guard of the moving train and the station master of the nearest station on either sides. Provides reliable voice communication and distress signalling as follows: Between driver and guard of a moving train. Between driver and station master of the nearest station on both sides. Between guard and station master of the nearest station on both sides. Between driver / guard from one moving train to driver / guard of another moving train. Consists basically of VHF simplex radios installed at (wayside) base station, in the loco and guard van.

45. 2.4GHz Wireless Radio Communication System 2.4GHz Wireless radio communication System. Regarding the ALCON 2.4GHz Multiline Wireless Radio System, there are some points that http://www.alcon-stc.com.tw/e/5.htm

2.4GHz Wireless Radio Communication System Regarding the ALCON 2.4 GHz Multi-line Wireless Radio System, there are some points that should be remembered when purchasing this system and it is necessary to comprehend the requirements of the end user before completing the purchase. 1. Please determine how many telephone lines the customer wishes to use for station to station transmission ie. 4, 8, 12 .... 2. It is necessary to know how many users and computer ports will be needed for internet or data transmission use ie. 0, 1, 2, 3, 4.... 3. The transmission range is a maximum 20 km line of sight. If the customer requires longer transmission distance than this, it will be necessary to implement a repeater system. 4. Since quality of signal must be as clear as possible, it is necessary to install this equipment in areas where there are no obstructions between the transmission link ie. buildings, mountains etc. and the Grid Parabolic Antennas should face each other. 5. The price quoted is for equipment costs only and does not include installation and tower costs.

46. UNHCR Procedure For Radio Communication UNHCR Procedure for radio communication. 1. Check that the RadioSetis prepared for operation VHF HandHelds – always ensure that http://www.reliefweb.int/telecoms/training/unhcrradio.html

UNHCR Procedure for Radio Communication 1. Check that the RadioSet is prepared for operation 2. Transmitting Decide beforehand what you are going to say, ensuring that it will be clear and concise. Make notes if necessary. Check that no-one else is speaking on the net before you start. Do not attempt to use Selcall (HF Mobiles/Base) if the net is busy. If your message is long, divide it into sensible phrases, pause to allow your message to be understood (and written down if necessary) while maintaining a natural rhythm. Use standard pronunciation. Emphasize vowels sufficiently. Avoid extremes of pitch, do not let your voice drop at the end of a sentence. Speak in a moderately strong voice but do not shout as this will distort the signal. Hold the microphone at about 5cm from your lips while speaking. Shield the microphone from background noises. Be aware that everything that you say can be heard by anyone using a radio receiver on the same frequency. Depending on the situation in the country of operations, it may be wise to use simple codes (e.g. AlphaNumeric codes for locations, cal signs for names, etc.) Ensure that each user on the network is registered on a master list held by the Radio Room, and that any unauthorized call signs heard on the net are noted and the users (if known) are properly registered or informed that they do not have permission to use the network.

47. : Micropath Corporation : MicropathSoftware And Digital Data Products For radio communications And GIS Applications; USGS DRG,DEM,DOQ,DOQQ,DLG,GNIS,GIS. Micropath develops software tools for VHF/UHF/MW wireless radio communications systems and the source for USGS DRG,DEM,DOQ,DLG,GNKS,GIS digital data products http://www.micropath.com

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48. Radio Communication With Extraterrestrials radio communication with Extraterrestrials. Radio messages travel atthe speed of light and are relatively cheap to send. Round trip http://pegasus.phast.umass.edu/a100/handouts/radiocom.html

Radio Communication with Extraterrestrials Radio messages travel at the speed of light and are relatively cheap to send. Round trip message time will still be inconvenient. If the nearest civilization is 100 light years away it will take 200 years to get the answer to a question. But just detecting a continuous transmission from another civilization would revolutionize our view of the universe. Where to look? Which stars of the hundred billion in our Galaxy? Sun-like stars may be a good starting point. We know life evolved around one of these. Which frequencies of the nearly infinite number of radio channels? ET's will try to make it easy and pick frequencies at or near those of astronomical interest. The "water hole" between the 21 cm line of hydrogen and the 18 cm line of OH (HOH = water) is a very quiet place in the radio spectrum. The signals must be obviously intelligent. A seqeunce of prime numbers is everybody's favorite probably with instructions on how to tune in on the interesting information. Since the travel time rules out "conversations", continous transmission of archival information may be most common.

49. Wireless For The Warrior. The History Of British Army Radio This web site is primarily devoted to the history and technical development of British Army radio communication equipment up to the 1950s. http://home.wxs.nl/~meuls003/

Now posted: information and progress of Volume 4! Please come back soon! (Louis Meulstee's web site) Links Volume 1 Volume 2 Volume 3 ... Other topics Home page Announcing: Volume 4 "Clandestine Radio" Follow again the progress of new Volume For more details see the "Volume 4" Page Welcome to the home page of Louis Meulstee. He is the author of "WIRELESS FOR THE WARRIOR", a series of books devoted to the technical history and development of British Army radio communication. In this web site you will find basic technical descriptions and photographs of many vintage radio sets once used by the British Army. In addition, there are also posted numerous other subjects for example: line telegraph (the Fullerphone), Air-Sea rescue sets (Gibson Girl), a gallery with Soviet radios and various other subjects which are not really connected with British Army radio communications! Please note that the pages in this site are regularly updated and renewed. Especially the gallery section, which will be much more extended in the future. This will not be done on a scheduled base as I have a rather time consuming job (see below) and am NOT retired from the Army... Some time ago I added a page on the history of the company I work for ( Business Radio Solutions , a department of KPN Royal Dutch Telecom) entitled: Mobile Radio in the Netherlands.

50. Atkins - Nationwide Mobile Radio Communication System, Czech Republic A mobile......Case study Project title Nationwide Mobile radio communication System,Czech Republic. Client Confidential. http://www.wsatkins.com/wsainternet/markets/telecoms/1029807/

Telecoms home case studies services ... start Case study Project title: Nationwide Mobile Radio Communication System, Czech Republic Client: Confidential Description: A mobile radio system for a fleet of 300 delivery vehicles serving customers in 23 distribution zones, each with its own depot. System required to communicate with delivery drivers on a secure network. Project date: 1995 Value: confidential Contact: Simon D Williams Tel: +44 (0) 1372 752143 Client issues Need for a reliable communications infrastructure to improve logistical control over drivers and increase security in rural areas. Requirement to provide at least 90% radio coverage within each depot area, including full coverage of urban areas and major roads. Our solution With no commercial nationwide mobile radio infrastructure and an expensive and unreliable mobile telephone service, the client’s needs were best met by a dispatcher-type mobile radio system with mobiles sending status messages to the depot operator. Service provided Market survey Advice Systems assessment Installation management Key benefits Improved logistical management and security, with incoming messages seen easily on computer screen. A more reliable and cheaper system than mobile phones.

51. New Product(s) Announcement Build short haul microwave radio communication equipment operating in the millimeter wave frequency bands. Includes product specifications and application notes. http://www.sierra-digital.com/

NEW PRODUCT(S) ANNOUNCEMENT January 13, 1999 Sierra Digital Communications has just released several new products that have created significant excitement in the wireless communication industry. These new products are not yet described within our web site. Please contact us for more complete information on the following products: 23 GHz CRYSTAL CONTROLLED SYNTHESIZED RADIO FAMILY Increased Stability, Improved Receiver Threshold, Field Tunability AND . . . no increase in price over prior Gunn Oscillator radios. Model 2351S Full 10 Mb/s Ethernet and Ethernet plus 1 or 2 separate T1 or E1 channels Model 2350S Wide Open Baseband radio link Model 2321S Simplex Video Radio Link with 2 Control Channels 24 GHz CRYSTAL CONTROLLED SYNTHESIZED RADIO FAMILY Replaces the 31 GHz radio family for US Applications, all are field tunable Utilizes Part 15/ISM Band so no licensing is required High Speed Data Transport between buildings Model 2420 Audio traffic control radio link. Model 2423 Video radio link for traffic flow monitoring Model 2440/41 Single T1 or E1 radio link Model 2471S Full 10 Mb/s Ethernet radio link 31 GHz CRYSTAL CONTROLLED SYNTHESIZED RADIOS FOR LMDS Ideal for LMDS "B Band" applications Crystal control meets increased stability requirements imposed by FCC Will be available in a variety of configurations, are/will be field tunable

52. Universal Radio Communication Tester R&S CMU200 Rohde Schwarz GmbH Co. KG Universal radio communication Tester R S CMU200Homepage. Mobile Radio. radio communication Tester R S CMU200. http://www.rohde-schwarz.com/mobile_radio/cmu200.html

Mobile Radio The base unit with its standard-independent module test provides many generalpurpose measurement facilities for the development of all kinds of standards within its wide and continuous frequency range. If extended by the relevant options, the CMU200 offers the hardware and software necessary to handle your 3G, 2.5G and previous-generation testing applications, including analog. Muehldorfstrasse 15, 81671 Munich, Germany Phone: +49 89 41 29 - Fax: +49 89 41 29 12 164 e-Mail: CustomerSupport@rohde-schwarz.com Internet: http://www.rohde-schwarz.com/ radiocommunications test and measurement broadcasting ... sitemap

53. Universal Radio Communication Tester R&S CMU300 The Universal radio communication Tester CMU300 Base Station Tester addsWCDMA Receiver Function Testing. Rohde Schwarz GmbH Co. KG http://www.rohde-schwarz.com/mobile_radio/cmu300.html

Mobile Radio For sensitivity measurements on a WCDMA Node B (WCDMA terminology for the base station), the CMU300 is the first test instrument to support all the Reference Measurement Channels (RMC) as defined in the specification (3GPP TS 25.141). By virtue of its own RF generator, the Universal Radio Communication Tester CMU300 provides: Real time signal generation incl. measurement sequences up to PN (pseudo-random noise) 16 for continuous receiver measurements, providing easy implementation of search routines for the absolute radio sensitivity Support for the specified 2 Mb per second data rate (RMC 2048 kbps) makes it possible to test already for a data rate implemented for anticipated applications: Test today for the applications of tomorrow For multislot applications, the Universal Radio Communication Tester CMU300 provides a feature ideal for testing transmitters that support both GMSK and 8PSK modulation. Not only can the CMU300 test the power ramping for up to 4 consecutive bursts; the measurement adapts automatically to the modulation, either GMSK or 8PSK, required for the power ramping used in each burst separately. When a base station provides hopping this must be tested, to the GSM Specification for base stations (3GPP TS 11.21). So it is important that the Universal Radio Communication Tester CMU300 meets this requirement not only for GSM, but also for GPRS and EGPRS. The CMU300 supports two forms of hopping; Activation by Call, and "Forced Hopping" - activation without a call. Forced hopping supports the GPRS and EGPRS channels. For either form of hopping, software version 2.84/2.94 or later is required.

54. Untitled Document radio communication Co., Inc. radio communication Company (RADCOM), has beenserving southeastern Wisconsin's communication need's for over 50 years. http://www.radcom2way.com/

55. Palidor Radio Communications Consultants Home Page - Independent Wireless System Provide mobile radio communications consulting services for voice and data communication system planning, design, and implementation projects . http://www.palidor.com/

Home About PALIDOR Professional Services Technical Expertise ... Contact Us Police – Fire – Emergency Medical – Local Government – Business Palidor is an independent mobile radio (wireless) communications consulting company that provides voice and data communication system planning, design, and implementation management services for public safety, local government, and businesses throughout North America. We have no affiliation with any equipment or software manufacturers and vendors, or commercial telecommunications services providers. We work solely in the best interests of our clients. We have strong technical and system implementation expertise in: Analog and Digital - Trunking and Conventional - Voice Communications Mobile Data Communications Paging (One-Way and Two-Way) Automatic Vehicle Location (AVL) We possess: Extensive technical expertise in the field of data and voice mobile communications system design and project management. Strong, proven RF system design skills and capabilities. Sound business background in wireless (radio) communications.

56. TITLE 47 , CHAPTER 5 TITLE 47 CHAPTER 5 CHAPTER 5 WIRE OR radio communication. SUBCHAPTERI GENERAL PROVISIONS; SUBCHAPTER II COMMON CARRIERS; SUBCHAPTER http://www4.law.cornell.edu/uscode/47/ch5.html

US CODE COLLECTION TITLE 47 > CHAPTER 5 CHAPTER 5 - WIRE OR RADIO COMMUNICATION SUBCHAPTER I GENERAL PROVISIONS SUBCHAPTER II COMMON CARRIERS SUBCHAPTER III SPECIAL PROVISIONS RELATING TO RADIO SUBCHAPTER IV PROCEDURAL AND ADMINISTRATIVE PROVISIONS SUBCHAPTER V PENAL PROVISIONS; FORFEITURES SUBCHAPTER V-A CABLE COMMUNICATIONS SUBCHAPTER VI MISCELLANEOUS PROVISIONS Search this title: Notes

57. Crystal Radio Systems Ltd Two Way Radio Communication Specialists For The UK Crystal Radio Systems Ltd specialise in the Sales, Service and Hire of two way radio communications equipment, and pride themselves on a fast, reliable http://www.twoway-radio.co.uk/

58. Radio Communication Project (RCP) Home Asia Nepal radio communication Project (RCP).Nepal, radio communication Project (RCP). http://www.jhuccp.org/asia/nepal/radio.shtml

Home Asia Nepal > Radio Communication Project (RCP) Radio Communication Project (RCP) Overview Goals Impact History Overview Nepal's rugged terrain, the remoteness of the typical Nepali village, high unmet need for family planning (27.8%), and low literacy rates make radio the ideal medium for disseminating family planning/reproductive health information. Goals Health worker carrying bag with Radio Program logos The RCP is designed to generate demand for family planning services and to improve the quality of services. The RCP has been developed in collaboration with His Majesty's Government (HMG) Department of Health Services, the National Health Training Council (NHTC), the National Health Education Information and Communication Council (NHEICC), and the Family Health Division (FHD) with funding from USAID and technical assistance from JHU/PCS. The RCP has been broadcast in Nepal since 1996. The RCP integrates mass media, distance education, and interpersonal communication and counseling training programs. It features a radio-based distance education program for health workers and a radio drama serial for the general population along with reinforcing program components.

59. Nepal Radio Communication Project Home Topics Entertainment Education EE Projects Nepal radio communicationProject. Entertainment Education Projects. Nepal radio communication Project. http://www.jhuccp.org/topics/enter_ed/eeprojects/01-14.shtml

Home Topics Entertainment Education EE Projects > Nepal Radio Communication Project Entertainment Education Projects Nepal Radio Communication Project Listen to an excerpt Download RealPlayer Read more about this project Order the videos The Radio Communication Project (RCP) is designed to generate demand for family planning services and to improve the quality of services. The RCP is a program that integrates mass media, distance education and interpersonal communication and counseling training programs. It features workshops, radio-based health worker training in family planning and a national radio drama series. Together these activities aim to improve the quality of contraceptive services, empower clients to actively seek contraceptive information and services, and promote the concept of the well-planned family. The Radio Communication Project's two complementary radio series are a dramatic serial titled Cut Your Coat According to Your Cloth and an interactive distance education series titled Service Brings Rewards The Center for Development and Population Activities (CEDPA) and their network of local NGOs in Nepal. These local NGOs include the Nepal Red Cross, the Family Planning Association of Nepal and the Center for Research on Environment, Health and Population Activities. These NGOs have undertaken a variety of activities including street theater performances, dissemination of local IEC materials, establishment of radio listening groups and the organization of and research on Condom Day.

60. Radio Communication Service, Inc. Celebrates 50th Anniversary As Authorized Moto radio communication Service, Inc. Celebrates 50th Anniversary as AuthorizedMotorola Service Station Today, as radio communication Service, Inc. http://www.motorola.com/LMPS/pressreleases/page1504.htm

FOR IMMEDIATE RELEASE Radio Communication Service, Inc. Celebrates 50th Anniversary as Authorized Motorola Service Station SCHAUMBURG, Ill. (April 6, 2001) - More than 50 years ago Murl White, Sr., an amateur radio operator and civilian electrician at Shaw Air Force Base, began installing and servicing radios for local taxi companies. Today, as Radio Communication Service, Inc. celebrates its 50th anniversary as an Authorized Motorola Service Station (MSS), company president Murl White, Jr. notes that the company continues to serve many of those same taxi companies. White, Sr., began installing and servicing radios in 1948 in Sumter, South Carolina. By 1951, business was going so well that Motorola asked him to sign an agreement to become an authorized service station. White, Sr. died in 1977 and the company passed to his son, Murl White, Jr. who is now president. Radio Communication Service sells, installs and services radio equipment for customers in nine counties including Sumter, Lee and Clarendon. "Motorola is proud of its relationships with the White family and the employees of Radio Communication Service," said Robert Galvin. "This company is an integral part of the Motorola family and today we honor everyone at Radio Communication Service for their contribution."

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