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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-17 09:45:48 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-17 09:45:48 -0200 |
| commit | a34e2a784f8d5b4d26fb3cc378e04296cdc7ad23 (patch) | |
| tree | a099c7af36c228f5f318aa9b76b56b7c0e0144a2 /Documentation | |
| parent | 3b6a567afa3250abf280ef535000dc0dc3ed9d52 (diff) | |
[media] DocBook/dvbproperty.xml: Fix the units for DTV_FREQUENCY
The units for DTV_FREQUENCY are kHz for satellital delivery systems
(DVB-S/DVB-S2/DVB-TURBO/ISDB-S). Fix it at the API spec.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/media/dvb/dvbproperty.xml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index ffee1fbbc001..049664192bb7 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -163,14 +163,16 @@ get/set up to 64 properties. The actual meaning of each property is described on <section id="DTV-FREQUENCY"> <title><constant>DTV_FREQUENCY</constant></title> - <para>Central frequency of the channel, in HZ.</para> + <para>Central frequency of the channel.</para> <para>Notes:</para> - <para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. + <para>1)For satellital delivery systems, it is measured in kHz. + For the other ones, it is measured in Hz.</para> + <para>2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of the channel which is 6MHz.</para> - <para>2)As in ISDB-Tsb the channel consists of only one or three segments the + <para>3)As in ISDB-Tsb the channel consists of only one or three segments the frequency step is 429kHz, 3*429 respectively. As for ISDB-T the central frequency of the channel is expected.</para> </section> |