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Topic: Radionavigation

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	Electronic Code of Federal Regulations: (Site not responding. Last check: 2007-11-02)
		A station in the radionavigation service the emissions of which are intended to enable a mobile station to determine its bearing or direction in relation to the radiobeacon station.
		A radionavigation land station which is used to transmit information essential to the testing and calibration of aircraft navigational aids, receiving equipment, and interrogators at predetermined surface locations.
		Radionavigation is the use of radiodetermination for the purpose of navigation, including obstruction warning.
	ecfr.gpoaccess.gov /cgi/t/text/text-idx?c=ecfr&sid=ce2ee195fa1ccefe5c82791dc3eceb77&rgn=div5&view=text&node=47:5.0.1.1.2&idno=47 (10434 words)

	Footnotes
		In order to ensure that harmful interfer- ence is not caused to stations of the aeronautical radionavigation service, stations of the mobile service shall not be introduced in the band until it is no longer required for the aeronautical radionav- igation service by any administration which may be identified in the application of Article 14.
		In order to ensure that harmful interference is not caused to stations of the aeronautical radionavigation service, stations of the mobile service shall not be introduced in the band until it is no longer required for the aeronautical radionavigation service by any adminis- tration which may be identified in the application of Article 14.
		In order to ensure that harmful interference is not caused to stations of the aeronautical radionavigation service, stations of the mobile service shall not be introduced in the band until it is no longer required for the aeronautical radionavigation service by any administration which may be identified in the application of Article 14.
	www.csgnetwork.com /internatfreqtablefn.html (17791 words)

	The Gibraltar Regulatory Authority (Site not responding. Last check: 2007-11-02)
		Administrations which operate stations in the radionavigation service in the band 90 - 110 kHz are urged to co-ordinate technical and operating characteristics in such a way as to avoid harmful interference to the services provided by these stations.
		The other radionavigation services to which the band 405 - 415 kHz is allocated shall not cause harmful interference to radio direction-finding in the band 406.5 - 413.5 kHz.
		In using the band 415-495 kHz for the aeronautical radionavigation service, administrations are requested to ensure that no harmful interference is caused to the frequency 490 kHz.
	www.gra.gi /annex_f03.html (2207 words)

	[No title]
		The band 31.8-33.4 GHz is allocated to the radionavigation service on a primary basis and has been added to the list of frequencies available to aircraft (air carrier and private) stations and radionavigation land (unspecified) stations under the rules for Aviation Services.
		After considering several options, the IRAC recommended to the NTIA that the radionavigation service allocations in the sub-band 31.8-32.3 GHz be limited to Federal Government use only, i.e., that the unused non-Federal Government radionavigation service allocation be deleted from the sub-band 31.8- 32.3 GHz.
		By limiting future non-Federal Government radionavigation services to the sub- band 32.3-33.4 GHz, NASA's deep space operations in the band 31.8-32.3 GHz will be protected and sufficient spectrum will be available to accommodate such commercial and private radionavigation services as may develop in the future.
	www.fcc.gov /ftp/Bureaus/Engineering_Technology/Orders/2000/fcc00353.txt (1963 words)

	Global Positioning System (GPS) (Site not responding. Last check: 2007-11-02)
		Accuracy - The degree of conformance between the estimated or measured position and/or velocity of a platform at a given time and its true position or velocity.
		Radionavigation system accuracy is usually presented as a statistical measure of system error and is specified as:
		Both the position solution and the chart must be based upon the same geodetic datum.
	www.tfhrc.gov /its/ndgps/gps.htm (261 words)

	[No title] (Site not responding. Last check: 2007-11-02)
		These provisions also apply to frequency assignments to stations of the aeronautical radionavigation service to which the same frequency band is allocated on a permitted basis.
		Maritime radionavigation service (radiobeacons) 1.1 Class of emission The Plan was established on the basis of class of emission A1A.
		Compatiblity between the maritime radionavigation service (radiobeacons) and the aeronautical radionavigation service In applying the planning program as part of the computer program package for the establishment of the Plan, a frequency for stations of the maritime radionavigation service was selected on the basis of criteria contained in this Annex.
	www.itu.int /itudoc/itu-r/publica/acts/acts85n_ww9.doc (3969 words)

	Radionavigation
		Over a period of 30 years, the company and the group have established an international reputation across a broad spectrum of technologies within the field of radionavigation and LBS.
		As specialists in providing radionavigation solutions for unusual or difficult applications, the company knows the importance of tailoring a design to the needs of an individual client.
		Extensive experience of both terrestrial and satellite-based radionavigation systems ensures selection of the optimum technology in each case.
	www.idb.wales.com /radionavigation.htm (629 words)

	ILA Statement of Radionavigation Policy
		In support of manufacturers and users, the Association advocates that all radionavigation and time distribution systems for use by the civil sector have transmitted signal specifications and signal availability formally published in appropriate international and/or national instruments and that the longevity of the service provided is clearly defined.
		The ILA actively participates in national and international radionavigation and time distribution planning and practice by providing comments and suggestions for the generation of international and national plans, through the encouragement of its members to contribute to committees and associations, and by offering a professional forum for the interchange and discussion of ideas and data.
		The ILA recognizes that there is a substantial amount of development work to be completed with Loran-C and associated technologies as the system spreads to worldwide use, and campaigns for the continued political, technical, and financial support of these activities.
	www.loran.org /ILAInformation/StatementOfPolicy.htm (545 words)

	Section
		5.62 Administrations which operate stations in the radionavigation service in the band 90-110 kHz are urged to coordinate technical and operating characteristics in such a way as to avoid harmful interference to the services provided by these stations.
		Such use is subject to agreement obtained under No. 9.21 with administrations concerned and limited to ground-based radiobeacons in operation on 27 October 1997 until the end of their lifetime.
		Stations of the mobile-satellite service shall not claim protection from stations in the aeronautical radionavigation service, stations operating in accordance with the provisions of No. 5.366 and stations in the fixed service operating in accordance with the provisions of No. 5.359.
	a257.g.akamaitech.net /7/257/2422/14mar20010800/edocket.access.gpo.gov/cfr_2002/octqtr/47cfr2.106.htm (14283 words)

	FM 24-2 Appendix I
		RLTM Radionavigation Land Test Station (Maintenance Test Facility): A radionavigation land station in the aeronautical radionavigation service which is used as a radionavigation calibration station for the transmission of essential information in connection with the testing and calibration of aircraft navigational aids, receiving equipment, and interrogators at predetermined surface locations.
		RLTO Radionavigation Land Test Station (operational Test Facility): A radionavigation land station in the aeronautical radionavigation service which is used as a radionavigation calibration station for the transmission of essential information in connection with the testing and calibration of aircraft navigational aids, receiving equipment, and interrogators at predetermined surface locations.
		RO Radionavigation Mobile Station: A station in the radionavigation service intended to be used while in motion or during halts at unspecified points.
	www.globalsecurity.org /military/library/policy/army/fm/24-2/Appi.htm (3820 words)

	History of Satellite Navigation
		It was developed to provide the Department of Defense (DOD) with a radionavigation capability with longer range and much greater accuracy than its predecessor, Loran-A. Loran-C is the federally provided radionavigation system for civil marine use in U.S. coastal waters.
		OMEGA is a very low frequency, phase comparison, worldwide radionavigation system which provides positioning within 2 to 4 nautical miles at a 95% confidence level with a 95% availability.
		The NAVSTAR GPS system is a satellite-based radionavigation system developed and operated by the U.S. Department of Defense (DOD).
	ares.redsword.com /GPS/old/sum_pre.htm (1020 words)

	Commissioners of Irish Lights
		Radionavigation is defined as navigation using radio waves for determination of position or a line of position.
		Loran-C is an all weather, highly accurate and reliable hyperbolic radionavigation system which covers most of the Northern Hemisphere.
		A predicted accuracy of 463m (0.25 nautical miles) will extend up to 1000 km off the south and west coasts of Ireland while an accuracy of greater than 100m is predicted for the Irish Sea, the Celtic Sea and the seas to the north of Ireland as well as all Irish coastal waters.
	www.cil.ie /sh616y.html (1351 words)

	[No title] (Site not responding. Last check: 2007-11-02)
		The Radiolocation service, while recognizing the special needs of Radionavigation services, noted in RR S4.10, has, in a number of countries, a long successful history of sharing the band 2 900-3 100 MHz with the present Radionavigation systems as they have evolved over many years.
		To permit the use of the band 108-117.975 MHz for the transmission of radionavigation satellite differential correction signals by ICAO standard ground-based systems; Background A new aviation requirement has emerged for the transmission of augmentation data for GNSS to be used by aircraft receivers to satisfy the stringent accuracy and integrity requirements for GNSS applications.
		It has been argued that GBAS does not fall within the definition of a Radionavigation service (i.e., the using property of the propagation characteristics of radio waves) and that an amendment to the allocation of this band is required.
	www.comunicazioni.it /it/DocSupp/139/GN_WRC03(01)13.doc (14584 words)

	Satellite radionavigation receiver - Patent 5343210
		The reception chain is of a homodyne type and is formed by a single frequency-conversion stage followed by an amplifier chain coupled to an encoding circuit for encrypting the signals travelling between each amplifier before their transmission to the navigation computer.
		It applies in particular to the construction of a receiver of the known system of C/A code GPS satellite radionavigation, descriptions of which can be found in the publications from the Institute of Navigation, Washington D.C., entitled "Global positioning system" No. 0.936406-01-1 and No. 0.936406-00-3.
		These signals which are emitted by the satellites of the system, are gathered on the ground by an aerial of hemispherical radiation pattern, with a very weak signal level, of the order of -133 dBm for each satellite received.
	www.freepatentsonline.com /5343210.html (4287 words)

	[No title]
		However, when allocating the bands within this range to their amateur service, administrations shall, after prior consultation with administrations of neighbouring countries, take such steps as may be necessary to prevent harmful interference from their amateur service to the fixed and mobile services of other countries.
		ADD S5.329A Use of systems in the radionavigation-satellite service (space-to-space) operating in the bands 1 2151 300 MHz and 1 559-1 610 MHz is not intended to provide safety service applications, and shall not impose any additional constraints on other systems or services operating in accordance with the Table of Frequency Allocations.
		ADD S5.337A The use of the band 1 300-1 350 MHz by earth stations in the radionavigation-satellite service and by stations in the radiolocation service shall not cause harmful interference to, nor constrain the operation and development of, the aeronautical-radionavigation service.
	www.icao.int /anb/panels/acp/WG/F/WGF6/wp8.doc (2570 words)

	[No title]
		The band should not be used for this purpose until it is no longer required for aeronautical radionavigation.
		UK119 Maritime radionavigation harbour radars may operate on NIB to aeronautical radionavigation by special agreement.
		UK120 Maritime radionavigation is for shipborne radar and RACONS with harbour radars by special arrangement.
	www.ofcom.org.uk /static/archive/ra/topics/spectrum-strat/uk-fat/uk-fat2002maintable.doc (5029 words)

	Volpe Center: The Federal Radionavigation Plan
		The U.S. Federal Radionavigation Plan (FRP) is jointly published every two years by the Department of Transportation and the Department of Defense.
		Also included in the FRP are requirements information, summaries of radionavigation research and development programs, and technical system-level descriptions.
		The Volpe Center develops the Federal Radionavigation Plan under the sponsorship of the U.S. Department of Transportation's Office of the Assistant Secretary for Transportation Policy (OST/P).
	www.volpe.dot.gov /gps/gpsfrp.html (262 words)

	Nat' Academies Press, The Global Positioning System for the Geosciences: Summary and Proceedings of a Workshop on ...
		The first edition of the FRP was released in 1980 as part of a Presidential Report to Congress, prepared in response to the International Maritime Satellite (INMARSAT) Act of 1978.
		In 1979 and again in 1990, a DOD/DOT Interagency Agreement for joint radionavigation planning, and the development and publication of the FRP was signed.
		In January 1993 a memorandum of agreement between DOD and DOT on the civil use of GPS was signed.
	www.nap.edu /books/NI000401/html/31.html (899 words)

	twelve.radionav_rtf (Site not responding. Last check: 2007-11-02)
		The installation of radionavigation receivers in mobile units, and their integration into the rest of the C3I system provides an ability to maintain a geographic plot of vehicles that is automatically updated.
		We'll avoid an overly technical discussion of radionavigation, instead focussing on alerting a C3I planner to some of the shortcomings that the radionavigation receiver vendors may not tell you about.
		So when planning your radionavigation sensor system, get a copy of the charts and see where the good coverage areas are.
	web.nps.navy.mil /~budden/book/twelve.radionav_.html (2697 words)

	47 CFR PART 2 (Site not responding. Last check: 2007-11-02)
		Radionavigation equipment, on board an aircraft or spacecraft or the spacecraft above the Earth's surface or another surface.
		A station in the radionavigation service intended to be used while in motion or during halts at unspecified points.
		The other radionavigation services to which the band 405–415 kHz is allocated shall not cause harmful interference to radio direction-finding in the band 406.5–413.5 kHz.
	www.washingtonwatchdog.org /documents/cfr/title47/part2.html (13412 words)

	Radionavigation (Site not responding. Last check: 2007-11-02)
		Adaptations of the same receivers can be used by hill walkers to check their precise position in bad weather.
		The American-designed Loran-C radionavigation system is soon to be extended to Europe.
		The Group worked with Trinity House and similar authorities overseas to develop a computer model which simulated how the system would work under the kind of local conditions that might limit the coverage and accuracy of the system.
	www.informatics.bangor.ac.uk /public/research/computing/navaid.shtml (408 words)

	AIN Online May 2002: DOT/DOD releases its latest federal radionavigation plan (Site not responding. Last check: 2007-11-02)
		It sets out federal government policy regarding the provision of current radionavigation aids for civil and military aviation, marine and land users.
		In the past, the FRP was a single document, but the most recent one has become two documents, with the second called federal radionavigation systems (FRS).
		The thinking was that since much of the material in the basic FRP, such as system descriptions and statements of federal navaid legislation, remained unchanged from year to year, these could go into the companion FRS volume, allowing the FRP to be more easily updated every two years.
	www.ainonline.com /issues/05_02/05_02_dotdodreleasespg107.html (468 words)

	Federal Radionavigation Plan (ResearchIndex) (Site not responding. Last check: 2007-11-02)
		Abstract: (Maximum 200 words) The Federal Radionavigation Plan (FRP) delineates policies and plans for radionavigation services provided by the U.S. Government to ensure efficient use of resources and full protection of national interests.
		Developed jointly by the U.S. Departments of Defense and Transportation, the FRP sets forth the Federal interagency approach to the implementation and operation of radionavigation systems.
		0.5: A Test-Bed for Low-Frequency Radionavigation - Fisher Department (1998)
	citeseer.ist.psu.edu /356170.html (240 words)

	radionav_logistcs (Site not responding. Last check: 2007-11-02)
		With the suite of radionavigation sensors listed, the basic availability problem is solved outside the ship.
		We should regard that is inadequate as the radionavigation system is clearly mission critical on any ship -- commercial, research, or military.
		A network-centric architecture allows indefinite replication, particularly when the attached components are as inexpensive as current generation radionavigation receivers are.
	web.nps.navy.mil /~budden/lecture.notes/radionav_logistics.html (1254 words)

	Radionavigation Group - Who we do it with (Site not responding. Last check: 2007-11-02)
		This study, managed by IDB, was conducted for the benefit of the Radionavigation Committee of the International Association of Marine Aids to Navigation and Lighthouse Authorities.
		The Radionavigation Group at Bangor has made a major contribution over recent years to the development of the radiobeacon differential GPS service, the principal DGNSS (Differential Global Navigation Satellite System) used by the maritime community.
		The Radionavigation Group is collaborating with SMRU in developing and testing an exceptionally small, light and low-powered animal tracking tag which employs the signals of the world-wide Omega low-frequency navigation system.
	www.navaid.demon.co.uk /rnavjobs.htm (4331 words)

	New Radionavigation Plan Eyes Transition to Satellite-Based Service in 21st Century (2/18/00) (Site not responding. Last check: 2007-11-02)
		This plan emphasizes again the administration’s strong commitment to civil GPS modernization by placing two new signals on the GPS satellites as promised by Vice President Al Gore in March 1998.
		Secretary Slater added that determining the schedule for the transition from current systems and what part of the current radionavigation infrastructure to retain is a complex matter which should involve government, industry and users.
		The administration’s current efforts are directed toward ensuring a sensible transition to satellite-based navigation services, with recognition of the need to maintain some existing navigation aids, he added.
	www.dot.gov /affairs/2000/dot3600.htm (411 words)

	[FPSPACE] GPS and aviation
		We are seeking a sensible transition to satellite-based navigation services as our primary means of navigation, while recognizing the need to maintain backup navigation aids where required." The 2001 FRP includes revised schedules for phasing down most land-based radionavigation systems to allow more time to transition to GPS.
		The U.S. Department of Transportation (DOT) will continue the policy stated in the 1999 FRP to operate Loran-C in the short term while the administration continues to evaluate the long-term need for the system.
		Beginning with this edition, federal radionavigation information previously contained in a single document will be published in two separate documents, the Federal Radionavigation Plan and a companion document entitled Federal Radionavigation Systems (FRS).
	www.friends-partners.org /pipermail/fpspace/2002-March/004216.html (535 words)

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