Electronic Communications Act, 2005 (Act No. 36 of 2005)ICASAFinal Radio Frequency Spectrum Assignment Plan for the Frequency Band 470 to 694 MHz5. Transmit Configuration for DVB-T2 |
| 6.1 | The DTT Frequency Plan in Annexure J of the Terrestrial Broadcasting Plan 2013, is designed with the Transmit Configuration for DVB-T2 (Fixed Reception). The Terrestrial DTT Frequency Plan which was developed for South Africa is based on the following transmit configuration: |
Technology: |
DVB-T2 |
Constellation: |
256 QAM |
FEC/Code Rate: |
3/5 |
Guard Interval |
1/8 |
Location Probability: |
95% |
FFT size |
32Ke |
Block length |
64800 |
Effective minimum usable field strength (CH21): |
49.873 dBuV/m |
Capacity |
30.01Mb/s |
Pilot Pattern |
PP2 |
| 6.2 | The transmit configuration is the most optimum transition configuration preferred. However, if the guard interval is smaller than the specified GI, this will lead to self-interference in the network. The Authority therefore emphasise that the transmission parameters should comply to the specified transmission configuration above even though 3 Mbit/s may be compromised. |
| 6.3 | The following transmit configuration or similar is possible, however, caution should apply as self-interference may result on the network thus making the SFN(s) unimplementable. See below transmit configuration: |
Constellation: |
256 QAM |
FEC/Code Rate: |
3/5 |
Guard Interval |
1/16 |
Location Probability: |
95% |
FFT size |
32Ke |
Block length |
64800 |
Effective minimum usable field strength (CH21): |
49.375 dBuV/m |
Capacity |
33.27 Mb/s |
Pilot Pattern |
PP4 |