High Frequency Broadcasting Planning Procedure Article RR12

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High Frequency Broadcasting Planning Procedure
Article RR12

• Pham Nhu Hai
• Radiocommunication Bureau

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Agenda

• HFBC Terminology
• RR12 - Underlying principles
• RR12 - Main features
• The procedure
• HFBC software

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HFBC terminology

• Requirement
• Schedule
• Season
• Collisions

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Principles of RR12

• Equal access to the HF bands
• Equitable treatment of National and International
  requirements
• Efficient use of spectrum
• Minimise incompatibility
• Reduced cost

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Main features

• Coordination between administrations
• Bilateral and multilateral
• Regional coordination groups
• Coordination on a common technical base
• Administrations may authorise broadcasters or
  other organisations to coordinate on their
  behalf.

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The procedure

• Notification
• Publication of data
• Coordination

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Who can notify?

• Administrations
• Authorised organisations broadcasters, frequency
  managers
• Administrations must advise BR in writing
• Name
• Three letter code
• Scope of authorisation

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How to notify?

• Electronic format only
• electronic mail at brmail_at_itu.int
• computer diskettes

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What to notify?

• Must submit the WHOLE schedule for a seasonal
  period
• minimise errors
• If no change, write to BR without submitting
  schedule
• A common text format
• Any text editing software can be used to prepare
  schedules
• Currently used by many administrations,
  broadcasters

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Notification File Format

• Line 1 general information
• Season
• Notifying organisation
• Date sent
• then, one line for each requirement
• Azimuth of max radiation
• Design frequency
• use of reference tables
• simplifies notification
• reduces errors
• a notification file

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When to notify?

• 4 months before Start Date
• end of November for A season (March-October)
• end of June for B season (October-March)
• Last amendments 2 weeks before
• Any time during the season
• amendment received less than two weeks before the
  publication date will not be included
• Circular letter to all administrations

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No schedule is submitted?

• BR shall use the requirements from the previous
  corresponding season schedule
• BR advises administrations concerned
• Once only !!

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Wooden transmitters

• Requirements not actually used
• More collisions detected
• Slow down the coordination process

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How is the data published?

• CD-ROM
• to subscribers only

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What does CD-ROM contain?

• Updated schedule
• Propagation analysis of individual requirements
• Compatibility analysis
• Latest versions HFBC Software

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How often is data published?

• Two months before the start of the season
• At the start
• Every two months
• Final schedule - one month after the end

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CD-ROM publication
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Subscribe HFBC CD?

• ITU Sales and Marketing service
• Email sales_at_itu.int

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Coordination

• Regional coordination groups
• HFCC/ASBU
• ABU-HFC
• African HF
• Multi lateral coordination
• Bi lateral coordination

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HFCC/ASBU

• Open to all individuals and organisations that
  provide HF frequency management and planning.
• 60 organisations from 30 countries.
• 80 of global HF transmissions.
• Meets twice a years Feb and August
• Web site http//www.hfcc.org

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ABU-HFC

• Organised by Asian-Pacific Broadcasting Union
• Open to all members of ABU and other HF spectrum
  users
• Cyber meeting in Feb and face-to-face meeting in
  August (Kuala Lumpur, Malaysia)
• Web site http//www.abu.org.my

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African coordination groups

• President Mali
• Four sub groups
• North Algeria (VP)
• Central Cameroon (VP)
• West Ghana (VP)
• East South Uganda (VP)
• Secretariat Director, URTNA Technical Center,
  Mali

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Coordination conference

• Not your normal conference!
• Meets once or twice a year to negotiate
  frequencies to avoid interference and reduce
  chaos on the SW bands
• Establish personal contact
• Email and phone contacts follow...

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Joint meeting of coordination groups

• To be convened by the Bureau when required.
• Develop strategies
• Reduction of compatibilities.
• Application of the procedure
• Related matters

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Assistance to administrations

• Selection of frequencies
• Application of the procedure
• HFBC software training

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How is it going?

• Positive cooperation among HF spectrum users
• Improvement of coverage
• Reduction of interference
• Transfer of knowledge
• Technical and operational
• Monitoring

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HFBC Software

• Developed in consultation with and assistance
  from
• Administrations
• Broadcasters
• Frequency Managers
• Data capture HFBCREQ
• Collision analysis - ITU HFBC 4.0

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Summary

• Notify early and accurately!
• Understand the technical basis for interference
  calculation!
• Coordinate with goodwill and mutual cooperation
• Subscribe HFBC CD-ROM
• The Bureau is ready to assist!