Tra cứu Tiêu chuẩn quốc tế

ITU-R BO.1659-1*ITU-R BO.1659

Mitigation techniques for rain attenuation for broadcasting-satellite service systems in frequency bands between 17.3 GHz and 42.5 GHz

ITU-R BO.1696-0*ITU-R BO.1696

Methodologies for determining the availability performance for digital multi-programme BSS systems, and their associated feeder links operating in the planned bands

ITU-R BO.1697-0*ITU-R BO.1697

Power flux-density values in the band 11.7-12.7 GHz and associated calculation methodology which may be used for bilateral coordination when the power flux-density values in Section 3 of Annex 1 to Appendix 30 or Annex 4 to Appendix 30 of the Radio Regulations are exceeded

ITU-R BR.1694-0*ITU-R BR.1694

Videocassette recording formats for international exchange of large-screen digital imagery programmes intended for presentation in a theatrical environment

ITU-R BS.1116-3*ITU-R BS.1116

Methods for the subjective assessment of small impairments in audio systems

ITU-R BS.1615-1*ITU-R BS.1615

"Planning parameters" for digital sound broadcasting at frequencies below 30 MHz

ITU-R BS.1657-0*ITU-R BS.1657

Procedure for the performance test of automated audio identification systems

ITU-R BS.1660-7*ITU-R BS.1660

Technical basis for planning of terrestrial digital sound broadcasting in the VHF band

ITU-R BS.1661-0*ITU-R BS.1661

'Signal-on-the-air' specifications of the digital system described in Annex 1 to Recommendation ITU-R BS.1514 for digital sound broadcasting in the broadcasting bands below 30 MHz

ITU-R BS.1679-1*ITU-R BS.1679

Subjective assessment of the quality of audio in large screen digital imagery applications intended for presentation in a theatrical environment

ITU-R BS.1688-0*ITU-R BS.1688

Baseband sound system and audio source-coding at delivery interfaces of large-screen digital imagery applications

ITU-R BS.1693-0*ITU-R BS.1693

Procedure for the performance test of automated query-by-humming systems

ITU-R BS.1698-0*ITU-R BS.1698

Evaluating fields from terrestrial broadcasting transmitting systems operating in any frequency band for assessing exposure to non-ionizing radiation

ITU-R BS.216-2*ITU-R BS.216

Protection ratio for sound broadcasting in the Tropical Zone

ITU-R BS.2161-0*ITU-R BS.2161

Low delay audio coding for broadcasting applications

ITU-T D.116 (06/04)

Charging and accounting principles relating to the home country direct telephone service

Charging and accounting principles relating to the home country direct telephone service

ITU-T E.116 (05/97)

International telecommunication charge card service

International telecommunication charge card service

ITU-T E.164 (05/02)

Operational and administrative issues associated with national implementations of the ENUM functions

Operational and administrative issues associated with national implementations of the ENUM functions

ITU-T E.164.1 (09/08)

Criteria and procedures for the reservation, assignment and reclamation of E.164 country codes and associated identification codes (ICs)

Criteria and procedures for the reservation, assignment and reclamation of E.164 country codes and associated identification codes (ICs)

ITU-T E.164.2 (02/01)

E.164 numbering resources for trials

E.164 numbering resources for trials