Dvbv5scan Initial File ((new)) Now
/usr/share/dvb/dvb-legacy/ (Older format, requires conversion)
Defines the broadcast standard. Valid entries include DVBT , DVBT2 , DVBS , DVBS2 , DVBC_ANNEX_A , and ATSC .
Here, the frequency is typically listed in kHz, polarization is specified (H for horizontal, V for vertical), and FEC (Forward Error Correction) rates are defined.
Here is a practical example for a UK DVB-T transmitter, taken from a sample initial tuning data file for the Emley Moor station: dvbv5scan initial file
To scan for over-the-air DVB-T channels in Sydney, Australia, using an initial file and saving the resulting channel list:
: How the data is encoded onto the frequency (e.g., QAM/64 , QAM/256 , QPSK , PSK/8 ). Using AUTO is highly recommended if your hardware support allows it. Where to Find Existing Initial Files
Save the file with a descriptive name, such as us-ATSC-local-start or uk-Rowridge-DVBT2 . No specific file extension is required, though .conf or no extension is standard. Running dvbv5-scan with Your File Here is a practical example for a UK
Once you have your initial tuning file ready, use it to generate a final channel map. Basic Syntax dvbv5-scan /path/to/initial_file -o channels.conf Use code with caution. Real-World Example (Terrestrial TV)
The LinuxTV wiki is an excellent resource for DVB-related information. It hosts a collection of initial tuning data files for users to share and download. For instance, a page for the UK provides a sample initial tuning data file for a specific transmitter (Emley Moor). Searching for your country or region on the LinuxTV wiki is highly recommended.
For satellite systems, you might see entries like: No specific file extension is required, though
An initial tuning file is a plain text configuration file. It contains the exact technical parameters of at least one known, functional transponder (or multiplex/mux) for a specific broadcasting location or satellite.
Most Linux distributions ship with a pre-packaged library of initial tuning files maintained by the LinuxTV community. Step 1: Install the DVB Utilities
: (For DVB-S/C) The symbol rate in symbols per second. Example DVB-T Entry: