Metadata Navigation (ITU-R Questions)

​​​​​​​​​​​​​​​​​Metadata Search
Metadata Search of ITU-R Quesitons is available by Study Group, Responsible WPs, Approval year, Target year and Question category.

  • ​​​​​​​​​​​Study Group/Resp. WPs (Responsible Study Groups/Working Parties and ​related groups​)
    • Study Groups/Working Parties
    • SG1 - ​Spectrum management
      WP1A - Spectrum engineering techniques
      WP1B - Spectrum management methodologies and economic strategies
      WP1C - Spectrum monitoring
      ​​SG3 - Radiowave propagation
      WP3J - Propagation fundamentals
      WP3K - Point-to-area propagation
      WP3L - Ionospheric propagation and radio noise
      WP3M - Point-to-point and Earth-space propagation​
      SG4 - Satellite services
      WP4A - Efficient orbit/spectrum utilization for FSS and BSS
      WP4B - Systems, air interfaces, performance and availability objectives for FSS, BSS and MSS, including IP-based applications and satellite news gathering
      WP4C - Efficient orbit/spectrum utilization for MSS and RDSS * -
      * WP4C will also deal with the performance issues related to RDSS​
      SG5 - Terrestrial services​
      WP5A - Land mobile service above 30 MHz* (excluding IMT); wireless access in the fixed service; amateur and amateur-satellite services
      * including the exact frequency of 30 MHz
      WP5B - Maritime mobile service including Global Maritime Distress and Safety System (GMDSS); aeronautical mobile service and radiodetermination service
      WP5C - Fixed wireless systems; HF and other systems below 30 MHz in the fixed and land mobile services
      WP5D - IMT Systems​
      SG6 - Broadcasting service
      WP6A - Terrestrial broadcasting delivery
      WP6B - Broadcast service assembly and access
      WP6C - Programme production and quality assessment​
      SG7 - Science services​​​​WP7A - Time signals and frequency standard emissions              
      WP7B - Space radiocommunication applications
      WP7C - Remote sensing systems
      WP7D - Radio astronomy​
    • Related Groups (not used for ITU-R Questions)
      ​​​​CCV - Coordination Committee for Vocabulary
      CPM - Conference Preparatory Meeting
      ​SC - Special Committee on Regulatory/Procedural Matters
      JTG4567 - Joint Task Group 4-5-6-7 (WRC-15 Agenda items 1.1 and 1.2)
  • ​​​Approval​​ year (Approval year of the ITU-R Questions)
  • Target year (Target year of the ITU-R Questions)
  • Question category (used to identify the priority and urgency of Questions to be studied) Please refer to Resolution ITU-R 5.
    • ​C: Conferen​ce-oriented Questions associated with work related to specific preparations for, and decisions of, world and regional radiocommunication conferences:​
      • ​C1: very urgent and priority studies, required for the next World Radiocommunication Conference
      • C2: urgent studies, expected to be required for other radiocommunication conferences
    • S: Questions which are intended to respond to:​
         - matters referred to the Radiocommunication Assembly by the Plenipotentiary Conference, any other conference, the Council, the Radio Regulations Board
         - advances in radiocommunication technology or spectrum management
         - changes in radio usage or operation
      • S1: urgent studies which are intended to be completed within two years
      • S2: important studies, necessary for the development of radiocommunications
      • ​S3: required studies, expected to facilitate the development of radiocommunications