Hi,

this are some trivial zapping applications explaining how to use the frontend
and demux API. They are also pretty useful to test your hardware.

For DVB-S, Astra Channel config file:

$ ./szap -c channels.conf-dvbs-astra n24

will tune to N24. For DVB-C, Berlin Cable channel config:

$ ./czap -c channels.conf-dvbc-berlin Arte

For DVB-T, Berlin Config:

$ ./czap -c channels.conf-dvbt-berlin phoenix

By default the MPEG stream is routed to a hardware decoder. If you want to 
record the stream to disk you will route it to the DVR device by using the 
'-r' option:

$ ./czap -c channels.conf-dvbt-berlin phoenix -r
[keep it running in one console]
$ cat /dev/dvr/adapter0/dvr0 > /tmp/recording.ts
[in a second console, will dump the MPEG transport stream to /tmp/recording.ts]

The status messages have the following meaning:

status 0x1f              --- The demodulator status bits.
			      0x1f means all bits set, everything ok.

signal [0x0000...0xffff] --- Signal Strength. Values above 0x8000 should be ok.

snr [0x0000...0xffff]    --- Signal/Noise Ratio. Values above 0x8000 are ok.

ber [0...0xffffffff]     --- Bit Error Rate. The less the better.

unc [0...0xffffffff]     --- Number of Uncorrectable Blocks.
			     Small numbers are Preferable.

If everything is alright and all frontend circuits are working stable 
(are locked) you should see a FE_HAS_LOCK in the rightmost line.

Good luck,

Holger

n-tables.git/diff/dvbv5_isdb-t/br-sp-SaoSebastiao?follow=1'>diff</a><a href='/dtv-scan-tables.git/stats/dvbv5_isdb-t/br-sp-SaoSebastiao'>stats</a></td><td class='form'><form class='right' method='get' action='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-sp-SaoSebastiao'>
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<div class='path'>path: <a href='/dtv-scan-tables.git/log/?showmsg=1&amp;follow=1'>root</a>/<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t?showmsg=1&amp;follow=1'>dvbv5_isdb-t</a>/<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-sp-SaoSebastiao?showmsg=1&amp;follow=1'>br-sp-SaoSebastiao</a> (<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-sp-SaoSebastiao?showmsg=1'>unfollow</a>)</div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/dtv-scan-tables.git/log/dvbv5_isdb-t/br-sp-SaoSebastiao?follow=1'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2024-01-31 13:08:32 +0100'>2024-01-31</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Tocantinopolis?id=e810c267c3a6960c8d57935bb1a9b334026038ed&amp;follow=1'>isdb-t: Update Brazil channel lists</a></td><td>Mauro Carvalho Chehab</td><td>1935</td><td><span class='deletions'>-11312</span>/<span class='insertions'>+70605</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Use the current lists from portalbsd.com.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:34:57 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Trksat-3A4A-42.0E?id=76c5a9110f7ee40fd1c63eca8ca84b125a0ac11e&amp;follow=1'>dvb-s: drop transponders that aren't there at Lyngsat anymore</a></td><td>Mauro Carvalho Chehab</td><td>50</td><td><span class='deletions'>-20357</span>/<span class='insertions'>+0</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those transponders may have been renamed or decommissioned. So,
drop them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:31:26 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-601-49.0E?id=118e8c00436b524273499b6c01b0c4e77083a4b5&amp;follow=1'>dvb-s: update from today's Lyngsat report</a></td><td>Mauro Carvalho Chehab</td><td>196</td><td><span class='deletions'>-15543</span>/<span class='insertions'>+15859</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2024-01-30 17:06:37 +0100'>2024-01-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/uk-WinterHill?id=fca403cc92717328bccb3b2a4c747a474632c0da&amp;follow=1'>dtv-scan-tables: full uk transmitter update</a></td><td>Simon Liddicott</td><td>81</td><td><span class='deletions'>-500</span>/<span class='insertions'>+163</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
updates all transmitter files, removes discontinued muxes

Link: https://lore.kernel.org/linux-media/20230216010528.5921-1-simon@liddicott.com
Signed-off-by: Simon Liddicott &lt;simon@liddicott.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-11-25 11:46:20 +0000'>2022-11-25</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-c/hu-Digikabel?id=833d4cc1dddb3560e93ef7dc6951ab5c204b5c13&amp;follow=1'>dtv-scan-tables: hu-Digikabel changes</a></td><td>Hrotkó Gábor</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+26</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Modifications by: https://digi.hu/tv/csatornalista

         FREQUENCY = 121000000

Link: https://lore.kernel.org/linux-media/8c632dad-d428-402e-a171-baf7234f2d85@gmail.com
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-04-30 16:02:58 +0100'>2022-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/pt-All?id=57ed2982275045ea5e92ef2a40b9fa58255852e5&amp;follow=1'>pt-All: fix modulation</a></td><td>Mauro Carvalho Chehab</td><td>1</td><td><span class='deletions'>-10</span>/<span class='insertions'>+10</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-04-30 15:50:08 +0100'>2022-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/pt-All?id=5f7b549da3c7ed1e9dfe4fcbbda742a9d7ee5aec&amp;follow=1'>pt-All: Update Portugal channels</a></td><td>Mauro Carvalho Chehab</td><td>1</td><td><span class='deletions'>-34</span>/<span class='insertions'>+70</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
There were some changes at Portugal channel frequencies, mostly
in 2020. Update the DVB-T channel list accordingly, in order to
reflect the current list of emitters.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-03-07 17:34:29 +0100'>2022-03-07</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Palmas?id=e403f83644167e240668c0668a8de04532060683&amp;follow=1'>Update Brazilian ISDB-T tables</a></td><td>Mauro Carvalho Chehab</td><td>549</td><td><span class='deletions'>-2923</span>/<span class='insertions'>+13860</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-03-07 17:05:00 +0100'>2022-03-07</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Intelsat-38-45.1E?id=0eb034356d9699799ed8633ac3fe01622d39e6ff&amp;follow=1'>Update satellite channel lists from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>54</td><td><span class='deletions'>-1882</span>/<span class='insertions'>+2326</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-12-14 12:36:28 +0100'>2021-12-14</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-t/uk-WinterHill?id=5acecf65ccd5633c50b8c199cce50fb734635097&amp;follow=1'>dtv-scan-tables: latest UK changes</a></td><td>Simon Liddicott</td><td>4</td><td><span class='deletions'>-24</span>/<span class='insertions'>+24</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
only includes transmitters where there have been changes

Link: https://lore.kernel.org/linux-media/20210128234622.75009-1-simon@liddicott.com
Signed-off-by: Simon Liddicott &lt;simon@liddicott.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 21:33:05 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/isdb-t/br-to-Tupirama?id=25ee9e0ce4bbacdb278d4cff306ceb6528c4f548&amp;follow=1'>update Brazilian scan files</a></td><td>Mauro Carvalho Chehab</td><td>2476</td><td><span class='deletions'>-12805</span>/<span class='insertions'>+69312</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Data updated according with https://portalbsd.com.br/.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 13:29:02 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal201-90.0E?id=66ec1eabbf6a596b42f6d4802b6aead3e8ba1ad5&amp;follow=1'>Remove legacy entries</a></td><td>Mauro Carvalho Chehab</td><td>129</td><td><span class='deletions'>-24898</span>/<span class='insertions'>+0</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
There are several entries that used to be at Lyngsat.
Several of them were merged with other entries.
On others, there's no TV signal anymore.

So, drop them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 13:28:58 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-601-49.0E?id=f46e7874dd45f03f47b31e8cd56108f3f10711f8&amp;follow=1'>Add new satellites from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>75</td><td><span class='deletions'>-21</span>/<span class='insertions'>+29721</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those are are new satellite descriptions that didn't use to
exist on Lyngsat. Add them.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 10:31:15 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Intelsat-38-45.1E?id=137a4b9176f8fb074c955a49ae97865d2fb85095&amp;follow=1'>Rename a few satellites with two names and update frequencies</a></td><td>Mauro Carvalho Chehab</td><td>2</td><td><span class='deletions'>-283</span>/<span class='insertions'>+182</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Those two satellites have two names. Use Just one of them.

While here, update their frequencies from Lyngsat.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-30 10:29:42 +0200'>2021-04-30</span></td><td class='logsubject'><a href='/dtv-scan-tables.git/commit/dvb-s/Yamal-402-54.9E?id=cf6e4b502139112c82f092001eb6b9ac3912182a&amp;follow=1'>Update frequencies from Lyngsat</a></td><td>Mauro Carvalho Chehab</td><td>188</td><td><span class='deletions'>-12304</span>/<span class='insertions'>+12666</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;


</td></tr>