Digital TV in South Africa
Test DVB-T2 transmissions were started in Stellenbosch a while ago. I managed to get hold of a receiver and I am testing the system currently.
It seems like the technical specifications for the transmissions in Stellenbosch are:
- System: DVB-T2
- Video: H.264 | 720x576 | 15:11
- Audio: AAC
- Frequency: 610 MHz
- Net ID: 8902
- Transport stream ID: 12289
- Service ID: 101-107 (TV), ... (radio)
- Modulation: QAM256
The free to air multiplex is received by a PCTV 290e, streamed by dvblast in linux using multicast IP. This is received by VLC after transcoding to deinterlace and correct the encoding. It is then streamed on HTTP and load balanced via a few servers. Links to view the video can be found on www.jpmeijers.com/tv.
The 'scan' utility in linux was used to scan the multiplex transmitted on 610MHz. It showed a total of 7 television stations, 19 radio stations and 1 unknown channel. The output of the scan can be seen in the comments of this post.
The DVB transmission was down today from roughly 11:00 till 13:15. It is still trial runs so these outages should be expected.
It seems like the DVB transmissions in Stellenbosch stopped this morning around 8:00. A complete frequency scan revealed that the DSTV Mobile service is still running, but absolutely nothing else in the air. Neither free-to-air nor encrypted. - (15:00)
At 5:30 this morning the transmissions on 610MHz started again. See the comment for the scan results. We can see from this that all the channels are back, but they are transmitted without any channel names. It seems that there are however still something wrong as no video or audio can be received on that multiplex.
It is now 14:00 and the streams seem to be working again, including the EPG data.