1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2
3.. _frontend-property-cable-systems:
4
5*****************************************
6Properties used on cable delivery systems
7*****************************************
8
9
10.. _dvbc-params:
11
12DVB-C delivery system
13=====================
14
15The DVB-C Annex-A is the widely used cable standard. Transmission uses
16QAM modulation.
17
18The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It
19supports a subset of the Annex A modulation types, and a roll-off of
200.13, instead of 0.15
21
22The following parameters are valid for DVB-C Annex A/C:
23
24-  :ref:`DTV_API_VERSION <DTV-API-VERSION>`
25
26-  :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>`
27
28-  :ref:`DTV_TUNE <DTV-TUNE>`
29
30-  :ref:`DTV_CLEAR <DTV-CLEAR>`
31
32-  :ref:`DTV_FREQUENCY <DTV-FREQUENCY>`
33
34-  :ref:`DTV_MODULATION <DTV-MODULATION>`
35
36-  :ref:`DTV_INVERSION <DTV-INVERSION>`
37
38-  :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>`
39
40-  :ref:`DTV_INNER_FEC <DTV-INNER-FEC>`
41
42-  :ref:`DTV_LNA <DTV-LNA>`
43
44In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>`
45are also valid.
46
47
48.. _dvbc-annex-b-params:
49
50DVB-C Annex B delivery system
51=============================
52
53The DVB-C Annex-B is only used on a few Countries like the United
54States.
55
56The following parameters are valid for DVB-C Annex B:
57
58-  :ref:`DTV_API_VERSION <DTV-API-VERSION>`
59
60-  :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>`
61
62-  :ref:`DTV_TUNE <DTV-TUNE>`
63
64-  :ref:`DTV_CLEAR <DTV-CLEAR>`
65
66-  :ref:`DTV_FREQUENCY <DTV-FREQUENCY>`
67
68-  :ref:`DTV_MODULATION <DTV-MODULATION>`
69
70-  :ref:`DTV_INVERSION <DTV-INVERSION>`
71
72-  :ref:`DTV_LNA <DTV-LNA>`
73
74In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>`
75are also valid.
76