<![CDATA[ITU Publications : ITU-R Opinions]]> http://www.itu.int/pub/R-OP en Mon, 06 May 2013 13:38:33 GMT brweb@itu.int webmaster@itu.int Publications <![CDATA[ITU Publications : ITU-R Opinions]]> http://www.itu.int/res/templates/v1.0/images/logo_ituw.gif http://www.itu.int/pub/R-OP <![CDATA[Compatibility considerations regarding the use of radio frequencies for purposes not considered within the Radio Regulations or other relevant ITU publications]]> http://www.itu.int/pub/R-OP-R.100-2012 ]]> Tue, 26 Jun 2012 11:19:57 GMT R-OP-R.100-2012 <![CDATA[Support and harmonization of International Mobile Telecommunications (IMT) activities]]> http://www.itu.int/pub/R-OP-R.92-2-2012 ]]> Thu, 19 Apr 2012 15:04:37 GMT R-OP-R.92-2-2012 <![CDATA[Coordination of the work of the ITU-R and the International Electrotechnical Commission (IEC) on measurements for the adjustment and maintenance of radio-relay systems]]> http://www.itu.int/pub/R-OP-R.50-1-1995 Note - Suppressed (2012)]]> Fri, 27 May 2011 14:57:33 GMT R-OP-R.50-1-1995 <![CDATA[World Atlas of Ground Conductivities]]> http://www.itu.int/pub/R-OP-R.91-2-2007 ]]> Tue, 08 May 2007 16:52:31 GMT R-OP-R.91-2-2007 <![CDATA[Routine ionospheric sounding]]> http://www.itu.int/pub/R-OP-R.22-7-2007 ]]> Mon, 29 Jan 2007 11:17:12 GMT R-OP-R.22-7-2007 <![CDATA[Broadcasting in the 26 MHz Band]]> http://www.itu.int/pub/R-OP-R.15-3-1974 Note - Suppressed (2013)]]> Tue, 01 Jan 1974 00:00:00 GMT R-OP-R.15-3-1974 <![CDATA[Exchange of monochrome and colour television programmes via satellites]]> http://www.itu.int/pub/R-OP-R.38-1970 Note - Suppressed (2008)]]> Thu, 01 Jan 1970 00:00:00 GMT R-OP-R.38-1970 <![CDATA[Subjective assessment of the quality of television pictures]]> http://www.itu.int/pub/R-OP-R.40-1970 Note - Suppressed (2013)]]> Thu, 01 Jan 1970 00:00:00 GMT R-OP-R.40-1970 <![CDATA[Field-stength measurements for frequencies below about 1.7 MHz]]> http://www.itu.int/pub/R-OP-R.69-1982 ]]> Fri, 01 Jan 1982 00:00:00 GMT R-OP-R.69-1982 <![CDATA[Study of digital techniques by Radiocommunication Study Groups and Telecommunication Standardization Study Group 9]]> http://www.itu.int/pub/R-OP-R.51-1974 Note - Suppressed (2012)]]> Tue, 01 Jan 1974 00:00:00 GMT R-OP-R.51-1974 <![CDATA[Location of interface between Radiocommunication Study Group 4 and ITU-T responsibilities for digital network Recommendations]]> http://www.itu.int/pub/R-OP-R.56-1-1986 Note - Suppressed (2008)]]> Wed, 01 Jan 1986 00:00:00 GMT R-OP-R.56-1-1986 <![CDATA[Organizations qualified to set standards on sound and television recording]]> http://www.itu.int/pub/R-OP-R.16-3-1986 Note - Suppressed (2013)]]> Wed, 01 Jan 1986 00:00:00 GMT R-OP-R.16-3-1986 <![CDATA[Cooperation with the International Special Committee on Radio Interference]]> http://www.itu.int/pub/R-OP-R.2-2-1990 Note - Suppressed (2011)]]> Mon, 01 Jan 1990 00:00:00 GMT R-OP-R.2-2-1990 <![CDATA[Equipment interconnection in professional programme production installations]]> http://www.itu.int/pub/R-OP-R.90-1990 Note - Suppressed (2013)]]> Mon, 01 Jan 1990 00:00:00 GMT R-OP-R.90-1990 <![CDATA[Systems for signal interface connection between sound-broadcasting receivers and associated equipment]]> http://www.itu.int/pub/R-OP-R.74-1-1990 Note - Suppressed (2009)]]> Mon, 01 Jan 1990 00:00:00 GMT R-OP-R.74-1-1990 <![CDATA[Systems for signal interface connection between television receivers and associated equipment]]> http://www.itu.int/pub/R-OP-R.75-1-1990 Note - Suppressed (2009)]]> Mon, 01 Jan 1990 00:00:00 GMT R-OP-R.75-1-1990 <![CDATA[Data broadcasting services]]> http://www.itu.int/pub/R-OP-R.83-1-1990 Note - Suppressed (2011)
]]> Mon, 01 Jan 1990 00:00:00 GMT R-OP-R.83-1-1990 <![CDATA[Preferred radio-frequency channel arrangements for radio-relay links for international connections]]> http://www.itu.int/pub/R-OP-R.14-7-1993 Note - Suppressed (2012)]]> Fri, 01 Jan 1993 00:00:00 GMT R-OP-R.14-7-1993 <![CDATA[Documentation of time transmissions]]> http://www.itu.int/pub/R-OP-R.71-2-1993 ]]> Fri, 01 Jan 1993 00:00:00 GMT R-OP-R.71-2-1993 <![CDATA[Data bank of HF sky-wave signal intensity measurements]]> http://www.itu.int/pub/R-OP-R.68-2-1995 ]]> Sun, 01 Jan 1995 00:00:00 GMT R-OP-R.68-2-1995 <![CDATA[Measurements of the characteristics of atmospheric radio noise]]> http://www.itu.int/pub/R-OP-R.85-1-1993 ]]> Fri, 01 Jan 1993 00:00:00 GMT R-OP-R.85-1-1993 <![CDATA[Use of communications satellites for a service of two-way time and frequency transfer]]> http://www.itu.int/pub/R-OP-R.93-1995 Note - Suppressed (2008)]]> Sun, 01 Jan 1995 00:00:00 GMT R-OP-R.93-1995 <![CDATA[Time and frequency transfer using digital telecommunication networks]]> http://www.itu.int/pub/R-OP-R.94-1994 ]]> Sat, 01 Jan 1994 00:00:00 GMT R-OP-R.94-1994 <![CDATA[Spectrum requirements of meteorological aids in the frequency range from 400.15 to 406 MHz]]> http://www.itu.int/pub/R-OP-R.98-1997 ]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.98-1997 <![CDATA[Time scale based on pulsar timing]]> http://www.itu.int/pub/R-OP-R.99-2003 ]]> Wed, 01 Jan 2003 00:00:00 GMT R-OP-R.99-2003 <![CDATA[Cooperation and harmonization in the future activities of the Radiocommunication (ITU-R) and Telecommunication Standardization (ITU-T) Sectors]]> http://www.itu.int/pub/R-OP-R.95-1997 ]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.95-1997 <![CDATA[Future use of the global navigation satellite system (GNSS) for high-precision time transfer]]> http://www.itu.int/pub/R-OP-R.96-1997 ]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.96-1997 <![CDATA[Operational use of geostationary direct TV satellites for time transfer]]> http://www.itu.int/pub/R-OP-R.97-1997 Note - Suppressed (2008)]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.97-1997 <![CDATA[World Atlas of Ground Conductivities]]> http://www.itu.int/pub/R-OP-R.91-1-1997 ]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.91-1-1997 <![CDATA[Harmonization of activities for future mobile communications]]> http://www.itu.int/pub/R-OP-R.92-1-1997 ]]> Wed, 01 Jan 1997 00:00:00 GMT R-OP-R.92-1-1997 <![CDATA[Observations needed to provide basic indices for ionospheric propagation]]> http://www.itu.int/pub/R-OP-R.23-6-1999 ]]> Fri, 01 Jan 1999 00:00:00 GMT R-OP-R.23-6-1999 <![CDATA[Routine ionospheric sounding]]> http://www.itu.int/pub/R-OP-R.22-6-1999 ]]> Fri, 01 Jan 1999 00:00:00 GMT R-OP-R.22-6-1999