transition procedures jan-peter bengtsson, chapter 6 rapporteur [email protected]
TRANSCRIPT
Transition:
The process of going from analogue to all-digital broadcasting
A D
Challenges• Viewers to receive programmes without disruption• Analogue services will remain for quite a long time
in many countries• Enough digital services needed already in the
introductory phase to stimulate consumer uptake• Allowing for different time scales in different
countries or areas, safeguarding equitable access• Ensure appropriate protection of analogue services
while allowing digital broadcasting to be introduced in viable conditions
Compatibility during transition
• Constraints imposed by analogue services may cause limitations on digital stations
• Any incompatibilities within a country is a national issue
• At the end of the transition period in a given country all its analogue transmitters will be switched off
Approaches to transition
• Simulcast-the same service simultaneously in analogue and digital form-additional frequencies needed, not feasible everywhere-the simulcast period should be rather short
• Analogue switch-off-analogue services instantaneously replaced by digital-digital receivers must be available-may be possible if limited number of analogue viewers
Planning scenario 1
Easy transition but limited number of digital services
A D
Full protection and compatibility
New digital services added
Analogue services retained
Planning scenario 2
Each administration can decide for itself when to bring digital services into operation
A D
Full compatibility with existing services
D
New digital services added
Analogue assignments converted to
digital
Planning scenario 3
Co-ordination during the implementation phase required
A
Protection of neighbour’s analogue
services may be needed during transition
Additional digital requirements
D
No protection of analogue in the planning
process
Analogue assignments converted as appropriate
Planning scenario 4
Complex transition process
Suitable where free channels can be made available
Protection of existing analogue services generally needed during transition
Digital requirements
D
No account of analogue services
is taken in the planning process
Associated Procedures
• Principles and criteria to be applied in coordination of transitional arrangementsIn particular needed for planning scenario 3 and 4
• Conversion of an allotment into assignment(s)If the digital Plan is based on allotments
• Addition or modification of digital entries in the PlanFor future development and, if needed, temporary channels
• Addition or modification of analogue assignments in the PlanE. g. for re-channeling of (low power) analogue services in order to facilitate the digital introduction
Stepwise transition
• A stepped approach via interim plans agreed at multilateral level could be used during the transition phase
• Ultimately the digital Plan, as agreed at the Conference, is implemented
Interim 2 Final PlanInterim 1Analogue