DVB-T Broadcast

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All talks are also broadcast via DVB-T stream on a public frequency.

Contents

Required hardware

For reception you need a common DVB-T receiver stick that is attached to a USB port at your notebook or PC. Alternatively you can use a TV set with integrated DVB-T tuner and decoder or a DVB-T set top box.

Stream content

The stream contains four programs:

  • Live video/audio from room 1
  • Live video/audio from room 2
  • Live video/audio from room 3
  • ChaosTV with upcomming events

Transmission parameters

Channel       22
Frequency     482.000 MHz
Modulation    COFDM
Constellation QAM-16
Mode          8K
Bandwidth     8MHz
FEC           3/4
Guardinterval 1/8

Configuration

Windows: When you're using Windows-based DVB-T software (probably the stuff that came with the stick...), just do a scan on channel 22 or on 482.000 MHz. The software should detect all programs within the stream and display the program names.

Linux: Most Linux DVB players need a configuration file called "channels.conf", which contains a list of all receivable programs.

24C3 Track 1:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:257:258:1
24C3 Track 2:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:513:514:2
24C3 Track 3:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:769:770:3
24C3 Auxiliary:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1025:1026:4

If you want to the scan yourself, dvbscan needs the following line in a configuration file:

T 482000000 8MHz 3/4 NONE QAM16 8k 1/8 NONE
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