1. BR/TSD Dakar 2005 BCD Compatibility Analysis 25 – 29 April 2005 Dakar David Botha Workshop for the African Group of Countries

2. BR/TSD Dakar 2005 BCD Basis of the analysis Input data Conversion of analogue assignments from the reference situation or new requirements; Existing and planned analogue TV assignments taken into account; Existing and planned assignments to other primary services temporarily not taken into account. Workshop for the African Group of Countries

3. BR/TSD Dakar 2005 BCD Basis of the analysis Technical considerations Analogue assignment service areas calculation, multiple interference based on power sum method; Conversions indicated and taken into account; Calculation of estimated service areas based on noise limited coverage areas reduced by a margin by 3 dB; No receiving antenna directivity or polarisation discrimination for mobile and portable indoor reception; For fixed reception receiving antenna directivity and polarisation were taken into account. Workshop for the African Group of Countries

4. BR/TSD Dakar 2005 BCD Results of the analysis Coverage indication Coverage indicated relative to the IDWM national borders (both analogue TV assignments and digital broadcasting requirements; Selection of results possible; Results can be displayed without having to repeat the calculation. Workshop for the African Group of Countries

5. BR/TSD Dakar 2005 BCD Results of the analysis Detail incompatibility information Conference mode: Indicate limited worst case incompatibility; All incompatibilities are listed; Different incompatibilities cases are provided in separate output files. Named mode: Change the configuration file to enable this mode; Detail incompatibility information provided for a specific site / requirement; Information specifically useful for coordination. Workshop for the African Group of Countries

6. BR/TSD Dakar 2005 BCD Synthesis Assigning frequency resources using a structured procedure Using algorithms as methods to assign channels / frequency blocks; Requirements are anonymous; Available channels are taken into account; Incompatibilities amongst digital broadcasting requirements indicate that requirements cannot share the same channel / frequency block. Workshop for the African Group of Countries

7. BR/TSD Dakar 2005 BCD Synthesis Workshop for the African Group of Countries In the absence of a full conference-like database, the synthesis results of a limited situation are not conclusive!!!!!!

8. BR/TSD Dakar 2005 BCD Synthesis Synthesis the Swiss way Acceptable choices = Acceptable channels / frequency blocks Workshop for the African Group of Countries Dark blue Light blue Red Gold

9. BR/TSD Dakar 2005 BCD Synthesis Synthesis the Swiss way Same colour as neighbour = Incompatibilities Workshop for the African Group of Countries

10. BR/TSD Dakar 2005 BCD Workshop for the African Group of Countries

11. BR/TSD Dakar 2005 BCD Merci Thank you Workshop for the African Group of Countries