0001 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
0002
0003 .. _frontend-property-cable-systems:
0004
0005 *****************************************
0006 Properties used on cable delivery systems
0007 *****************************************
0008
0009
0010 .. _dvbc-params:
0011
0012 DVB-C delivery system
0013 =====================
0014
0015 The DVB-C Annex-A is the widely used cable standard. Transmission uses
0016 QAM modulation.
0017
0018 The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It
0019 supports a subset of the Annex A modulation types, and a roll-off of
0020 0.13, instead of 0.15
0021
0022 The following parameters are valid for DVB-C Annex A/C:
0023
0024 - :ref:`DTV_API_VERSION <DTV-API-VERSION>`
0025
0026 - :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>`
0027
0028 - :ref:`DTV_TUNE <DTV-TUNE>`
0029
0030 - :ref:`DTV_CLEAR <DTV-CLEAR>`
0031
0032 - :ref:`DTV_FREQUENCY <DTV-FREQUENCY>`
0033
0034 - :ref:`DTV_MODULATION <DTV-MODULATION>`
0035
0036 - :ref:`DTV_INVERSION <DTV-INVERSION>`
0037
0038 - :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>`
0039
0040 - :ref:`DTV_INNER_FEC <DTV-INNER-FEC>`
0041
0042 - :ref:`DTV_LNA <DTV-LNA>`
0043
0044 In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>`
0045 are also valid.
0046
0047
0048 .. _dvbc-annex-b-params:
0049
0050 DVB-C Annex B delivery system
0051 =============================
0052
0053 The DVB-C Annex-B is only used on a few Countries like the United
0054 States.
0055
0056 The following parameters are valid for DVB-C Annex B:
0057
0058 - :ref:`DTV_API_VERSION <DTV-API-VERSION>`
0059
0060 - :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>`
0061
0062 - :ref:`DTV_TUNE <DTV-TUNE>`
0063
0064 - :ref:`DTV_CLEAR <DTV-CLEAR>`
0065
0066 - :ref:`DTV_FREQUENCY <DTV-FREQUENCY>`
0067
0068 - :ref:`DTV_MODULATION <DTV-MODULATION>`
0069
0070 - :ref:`DTV_INVERSION <DTV-INVERSION>`
0071
0072 - :ref:`DTV_LNA <DTV-LNA>`
0073
0074 In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>`
0075 are also valid.
