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DVB-S2 muxes

Added by Vitaly Kh about 13 years ago

Hi,
I installed TVHeadend on Ubuntu 11.04
But it can't find any service at DVB-S2 muxes.
It find muxes, but Frontend status Unknown and qullity decrease with the lapse of time.
Then,
Nov 13 12:50:58 dvb: "/dev/dvb/adapter0" tuning via s2api to "11,842,000 kHz Left (Default)" (1092000, 27500000 Baud, 3/4, SYS_DVBS2, PSK_8)
Nov 13 12:51:05 dvb: "11,842,000 kHz Left (Default)" on adapter "STB0899 Multistandard", status changed to No signal
Nov 13 12:51:20 dvb: "/dev/dvb/adapter0" tuning via s2api to "TricolorTV: 11,804,000 kHz Left (Default)" (1054000, 27500000 Baud, 3/4, SYS_DVBS2, PSK_8)
Nov 13 12:51:27 dvb: "TricolorTV: 11,804,000 kHz Left (Default)" on adapter "STB0899 Multistandard", status changed to No signal

Dvbstream can read stream.
Some samples.

Media:~# dvbstream -o:file2.ts -n 5 -D 0 -f 11842000 -s 27500 -p H 8192
dvbstream v0.7 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Adding whole transport stream to map n. 0
Open file file2.ts
Tuning to 11842000 Hz
Using DVB card "STB0899 Multistandard", freq=11842000
tuning DVB-S to Freq: 1242000, Pol:H Srate=27500000, 22kHz tone=off, LNB: 0, SLOF 11700, LOF1: 9750, LOF2: 10600
Setting only tone ON and voltage 18V
DISEQC SETTING SUCCEDED
Getting frontend status
Event: Frequency: 11842000
SymbolRate: 27500000
FEC_inner: 9

Bit error rate: 0
Signal strength: 258
SNR: 200
FE_STATUS: FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC

MAP 0, file file2.ts: From -1 secs, To -1 secs, 2 PIDs - 0 8192
dvbstream will stop after 5 seconds (0 minutes)
Streaming 1 stream
Program n. 19101, name: 'Da Vinci'
Program n. 19102, name: 'TV1000'
Program n. 19103, name: 'TV1000 Action'
Program n. 19104, name: 'TV1000 ▒▒▒▒▒▒▒ ▒▒▒▒'
Program n. 19105, name: 'Viasat Explorer'
Program n. 19106, name: 'Viasat History'
Program n. 19107, name: 'Viasat Nature'
Program n. 19108, name: 'Viasat Sport'

Media:~# dvbstream -o:file2.ts -n 5 -D 0 -f 11804000 -s 27500 -p H 8192
dvbstream v0.7 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Adding whole transport stream to map n. 0
Open file file2.ts
Tuning to 11804000 Hz
Using DVB card "STB0899 Multistandard", freq=11804000
tuning DVB-S to Freq: 1204000, Pol:H Srate=27500000, 22kHz tone=off, LNB: 0, SLOF 11700, LOF1: 9750, LOF2: 10600
Setting only tone ON and voltage 18V
DISEQC SETTING SUCCEDED
Getting frontend status
Event: Frequency: 11804000
SymbolRate: 27500000
FEC_inner: 9

Bit error rate: 0
Signal strength: 267
SNR: 197
FE_STATUS: FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC

MAP 0, file file2.ts: From -1 secs, To -1 secs, 2 PIDs - 0 8192
dvbstream will stop after 5 seconds (0 minutes)
Streaming 1 stream
Program n. 1, name: 'Lybid_TV'

img1.jpg (69.7 KB) img1.jpg
img2.jpg (53.5 KB) img2.jpg

Replies (28)

RE: DVB-S2 muxes - Added by Seven NL about 12 years ago

Hi,

I am atm setting up my sat config with a diseqc multiswitch and 4 LMB's.
Setting up the card is done, setup the 4 LMB to Astra 19->0 Astra 28 ->1 Astra 23 ->2 Hotbord 13 ->3
As i was adding the LMB to the DVB networks i noticed Astra 19.2E showed Muxes:1 Muxes awaiting initial scan:1 so i added my second DVB network Astra 28.
Currently tuned to: changed immediately to Astra 23 with Muxes:89 and Muxes awaiting initial scan: starting to countdown.
My question is do I need to wait longer between adding DVB networks to let tvheadend scan the whole range of the satellite or can I just add all 4 and they will be correctly scanned anyway ?
It's just a bit confusing and may be the issue i had with the Astra 19 only showing 1 frequency.

Small update: I found the problem of the Astra 19.2 only finding 1 frequency, the file /home/<user>/tvheadend/data/dvb-scan/dvb-s/Astra 19.2E only contains 1 frequency.
I am assuming these are the files tvheadend looks at when scanning.
I renamed Astra-19.2E and Hotbird-13.0E as .backup files and replaced them with the files found in this post: https://www.lonelycoder.com/redmine/issues/1237#change-5505
A rejected [bug] but at least it contains the Astra 19.2E frequencies i am missing. ( same for updated frequencies for Hotbird 13.0E.

Second update: As i read more i get now that you use an online source to retrieve the mux information. As such the remote host has incomplete and/or outdated data and is the case of the single frequency on astra 19.2E and 5 error readings on Astra 23.5E.
I am skipping mux detection for 19.2E for now, disabled the 5 faulty frequencies on 23.5E restarted tvheadend to re-scan to see if i can get an enabled Map DVB services to channels.

cheers,
Bart

RE: DVB-S2 muxes - Added by MrRepel Joooow about 12 years ago

Bert Santema wrote:

No improvement I'm afraid. But the fact that the "Muxes awaiting initial scan" stops at 5 is probably related to the last 5 log messages that mention "Front configuration failed -- Invalid argument, frequency: 140733195449032". I don't know if it is relevant, but I'm using a duo lnb from CanalDigitaal (Netherlands). I created one extra satellite config entry. Both are set to "Universal" LNB type, one for switchport 0, the other for port 1. But my guess is only one is correctly working as I only Astra 23.5 yields multiple muxes, Astra 19.2 only one.

This is the log from the console (the output in the browser is not different from earlier):
[...]

Please let me know if there is anything else I can try and thanks for the help.

Hi Santema,

In the past i used the same LNB from canaaldigitaal. You have to set switchport 1 for astra 3 and switchport 2 for astra 1. I have a cineS2 miniPCI tuner.

RE: DVB-S2 muxes - Added by Seven NL about 12 years ago

I finally got a full scan from 4 LMB's after installing the tvheadend_3.0_i386.deb ( I needed to instal the 32 bit version as it failed to recognize my version as 64 bit which i checked it is with uname -m )
Message: error processing tvheadend_3.0_amd64.deb (--install): package architecture (amd64) does not match system (i386)

Gonna chill for tonight, tomorrows's another day.

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