| .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
| |
| .. _frontend-property-cable-systems: |
| |
| ***************************************** |
| Properties used on cable delivery systems |
| ***************************************** |
| |
| |
| .. _dvbc-params: |
| |
| DVB-C delivery system |
| ===================== |
| |
| The DVB-C Annex-A is the widely used cable standard. Transmission uses |
| QAM modulation. |
| |
| The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It |
| supports a subset of the Annex A modulation types, and a roll-off of |
| 0.13, instead of 0.15 |
| |
| The following parameters are valid for DVB-C Annex A/C: |
| |
| - :ref:`DTV_API_VERSION <DTV-API-VERSION>` |
| |
| - :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` |
| |
| - :ref:`DTV_TUNE <DTV-TUNE>` |
| |
| - :ref:`DTV_CLEAR <DTV-CLEAR>` |
| |
| - :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` |
| |
| - :ref:`DTV_MODULATION <DTV-MODULATION>` |
| |
| - :ref:`DTV_INVERSION <DTV-INVERSION>` |
| |
| - :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>` |
| |
| - :ref:`DTV_INNER_FEC <DTV-INNER-FEC>` |
| |
| - :ref:`DTV_LNA <DTV-LNA>` |
| |
| In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>` |
| are also valid. |
| |
| |
| .. _dvbc-annex-b-params: |
| |
| DVB-C Annex B delivery system |
| ============================= |
| |
| The DVB-C Annex-B is only used on a few Countries like the United |
| States. |
| |
| The following parameters are valid for DVB-C Annex B: |
| |
| - :ref:`DTV_API_VERSION <DTV-API-VERSION>` |
| |
| - :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` |
| |
| - :ref:`DTV_TUNE <DTV-TUNE>` |
| |
| - :ref:`DTV_CLEAR <DTV-CLEAR>` |
| |
| - :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` |
| |
| - :ref:`DTV_MODULATION <DTV-MODULATION>` |
| |
| - :ref:`DTV_INVERSION <DTV-INVERSION>` |
| |
| - :ref:`DTV_LNA <DTV-LNA>` |
| |
| In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>` |
| are also valid. |
