Signal quality slowly decreasing

Added by Martijn de Munnik almost 13 years ago

Hi,

I'm trying to use tvheadend with the dutch Digitenne network (dvb-t). I've got 4 tuners in my pc (3 x DiBcom 3000MC/P, 1 x Philips TDA10046H) and they are connected to a Glomex Panorama antenna. I used professional cables and a professional splitter but unfortunately I'm not able to get a good signal quality. When I restart tvheadend and attach the antenna I got 100% signal quality almost everywhere. But after some minutes the signal quality start to decrease and most mulitplexes get below 30% signal quality. I tried to attach only one tuner to the antenna but this doesn't make any difference. I am sure the signal quality should be quiet good. I'm currently in Nijmegen on the river Waal with a clear view around the boat.

Any ideas?

thanks,
Martijn

Replies (7)

RE: Signal quality slowly decreasing - Added by Hein Rigolo almost 13 years ago

Probably a driver issue. Did you disable the monitor signal quality option? If the quality is good at the start the it will be okee, but some how your drivers/hardware is reporting that itgets worse.

So try this and see what happens.

RE: Signal quality slowly decreasing - Added by Alex . almost 13 years ago

Hein Rigolo wrote:

Probably a driver issue. Did you disable the monitor signal quality option? If the quality is good at the start the it will be okee, but some how your drivers/hardware is reporting that itgets worse.

So try this and see what happens.

Indeed,I can confirm what Hein says with Dibcom7000 receiver :I had a similar problem : DibCom7000 ,Digitenne, decreasing signal quality.
Switching off "monitor signal quality" solved it for me.
Also i noticed that for Digitenne it is best to add your specific muxes manually (instead of using the build-in function)

RE: Signal quality slowly decreasing - Added by daniel magnusson almost 13 years ago

Alex. _ wrote:

Switching off "monitor signal quality" solved it for me.

This helped my with same issue, with Afatech AF9013 adapter.

Thanks

RE: Signal quality slowly decreasing - Added by Martijn de Munnik almost 13 years ago

Hi,

After I added all the muxes and the adapter scanned them all, I removed all the muxes which didn't have a muxid. All adapter now have the same 5 muxes. I also disabled the option "Monitor signal quality" on all cards. Still my recordings are with a lot of glitches. I enabled debug output in the logging for a sort amount of time. Does anyone know why the transport errors occur?

Loglevel debug: enabled
Feb 07 22:13:50 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: Transport error indicator
Feb 07 22:13:50 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: Transport error indicator
Feb 07 22:13:50 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2VIDEO #1031: Continuity counter error Feb 07 22:13:50 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: TELETEXT #1033: Continuity counter error
Feb 07 22:13:50 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2AUDIO #1032: Continuity counter error Feb 07 22:13:50 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2VIDEO #3021: Continuity counter error
Feb 07 22:13:50 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: TELETEXT #3023: Continuity counter error Feb 07 22:13:50 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2AUDIO #3022: Continuity counter error
Feb 07 22:13:51 dvb: "Digitenne: 554,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Bursty FEC
Feb 07 22:13:51 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 3", status changed to Constant FEC
Feb 07 22:13:52 cwc: Sending ECM section=0/0, for service RTL 7 (seqno: 1340) PID 1039
Feb 07 22:13:53 cwc: Received ECM reply for service "RTL 7" even: e1.72.d7.2a.ce.06.f2.c6 odd: 8a.30.e3.9d.4a.e7.0c.3d (seqno: 1340 Req delay: 1095 ms)
Feb 07 22:13:53 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to OK
Feb 07 22:13:53 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 3", status changed to Bursty FEC
Feb 07 22:13:54 cwc: Sending ECM section=0/0, for service RTL 8 (seqno: 1341) PID 3029
Feb 07 22:13:55 cwc: Received ECM reply for service "RTL 8" even: 61.30.16.a7.1e.b0.f2.c0 odd: af.cf.8d.0b.38.7b.ab.5e (seqno: 1341 Req delay: 1077 ms)
Feb 07 22:13:57 dvb: "/dev/dvb/adapter0" tuning to "Digitenne: 754,000 kHz" (Autoscan)
Feb 07 22:13:59 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 1", status changed to Bursty FEC
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: Transport error indicator
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: Transport error indicator
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2VIDEO #1031: Continuity counter error Feb 07 22:14:01 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: TELETEXT #1033: Continuity counter error
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: CA #3029: Continuity counter error Feb 07 22:14:01 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: CA #1039: Continuity counter error
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2AUDIO #1032: Continuity counter error Feb 07 22:14:01 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2VIDEO #3021: Continuity counter error
Feb 07 22:14:01 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: TELETEXT #3023: Continuity counter error Feb 07 22:14:01 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2AUDIO #3022: Continuity counter error
Feb 07 22:14:02 cwc: Sending ECM section=0/0, for service RTL 7 (seqno: 1342) PID 1039
Feb 07 22:14:02 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to Bursty FEC
Feb 07 22:14:03 cwc: Received ECM reply for service "RTL 7" even: 2f.d3.93.95.47.18.d6.35 odd: 8a.30.e3.9d.4a.e7.0c.3d (seqno: 1342 Req delay: 1049 ms)
Feb 07 22:14:04 cwc: Sending ECM section=0/0, for service RTL 8 (seqno: 1343) PID 3029
Feb 07 22:14:06 dvb: "/dev/dvb/adapter3" tuning to "Digitenne: 570,000 kHz" (Autoscan)
Feb 07 22:14:06 cwc: Received ECM reply for service "RTL 8" even: c3.7e.ee.2f.4b.2d.4f.c7 odd: af.cf.8d.0b.38.7b.ab.5e (seqno: 1343 Req delay: 1746 ms)
Feb 07 22:14:10 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: Transport error indicator, 1 duplicate log lines suppressed
Feb 07 22:14:10 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2VIDEO #3021: Continuity counter error, 2 duplicate log lines suppressed Feb 07 22:14:10 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2AUDIO #3022: Continuity counter error, 1 duplicate log lines suppressed
Feb 07 22:14:10 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: TELETEXT #3023: Continuity counter error, 2 duplicate log lines suppressed Feb 07 22:14:10 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: CA #1039: Continuity counter error, 1 duplicate log lines suppressed
Feb 07 22:14:10 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2VIDEO #1031: Continuity counter error, 1 duplicate log lines suppressed Feb 07 22:14:10 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: TELETEXT #1033: Continuity counter error, 1 duplicate log lines suppressed
Feb 07 22:14:10 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2AUDIO #1032: Continuity counter error, 1 duplicate log lines suppressed Feb 07 22:14:10 dvb: "Digitenne: 570,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Constant FEC Feb 07 22:14:10 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to Constant FEC Feb 07 22:14:10 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 3", status changed to Constant FEC Feb 07 22:14:10 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 1", status changed to Constant FEC Feb 07 22:14:12 cwc: Sending ECM section=0/0, for service RTL 7 (seqno: 1348) PID 1039 Feb 07 22:14:13 cwc: Received ECM reply for service "RTL 7" even: 2f.d3.93.95.47.18.d6.35 odd: d3.db.b0.5e.cf.91.f9.59 (seqno: 1348 Req delay: 1067 ms) Feb 07 22:14:14 cwc: Sending ECM section=0/0, for service RTL 8 (seqno: 1349) PID 3029 Feb 07 22:14:15 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to Bursty FEC Feb 07 22:14:15 cwc: Received ECM reply for service "RTL 8" even: c3.7e.ee.2f.4b.2d.4f.c7 odd: ee.6f.c5.22.b4.9c.76.c6 (seqno: 1349 Req delay: 1037 ms) Feb 07 22:14:16 dvb: "Digitenne: 570,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Bursty FEC Feb 07 22:14:17 dvb: "/dev/dvb/adapter0" tuning to "Digitenne: 786,000 kHz" (Autoscan) Feb 07 22:14:19 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 1", status changed to Bursty FEC Feb 07 22:14:20 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: Transport error indicator Feb 07 22:14:20 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: Transport error indicator Feb 07 22:14:20 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2VIDEO #1031: Continuity counter error
Feb 07 22:14:20 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: TELETEXT #1033: Continuity counter error Feb 07 22:14:20 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: MPEG2AUDIO #1032: Continuity counter error
Feb 07 22:14:20 TS: DiBcom 3000MC/P - 2/Digitenne: 786,000 kHz/RTL 7: CA #1039: Continuity counter error Feb 07 22:14:20 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2AUDIO #3022: Continuity counter error
Feb 07 22:14:20 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: MPEG2VIDEO #3021: Continuity counter error Feb 07 22:14:20 TS: DiBcom 3000MC/P - 3/Digitenne: 754,000 kHz/RTL 8: TELETEXT #3023: Continuity counter error
Feb 07 22:14:21 dvb: "Digitenne: 570,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Constant FEC
Feb 07 22:14:21 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to Constant FEC
Feb 07 22:14:22 cwc: Sending ECM section=0/0, for service RTL 7 (seqno: 1350) PID 1039
Feb 07 22:14:22 dvb: "Digitenne: 570,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Bursty FEC
Feb 07 22:14:22 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 1", status changed to Constant FEC
Feb 07 22:14:22 dvb: "Digitenne: 786,000 kHz" on adapter "DiBcom 3000MC/P - 2", status changed to Bursty FEC
Feb 07 22:14:23 cwc: Received ECM reply for service "RTL 7" even: 56.fe.6f.c3.56.37.bc.49 odd: d3.db.b0.5e.cf.91.f9.59 (seqno: 1350 Req delay: 1027 ms)
Feb 07 22:14:23 dvb: "Digitenne: 754,000 kHz" on adapter "DiBcom 3000MC/P - 3", status changed to Bursty FEC
Feb 07 22:14:24 cwc: Sending ECM section=0/0, for service RTL 8 (seqno: 1351) PID 3029
Feb 07 22:14:25 cwc: Received ECM reply for service "RTL 8" even: fb.82.65.e2.ea.4f.bd.f6 odd: ee.6f.c5.22.b4.9c.76.c6 (seqno: 1351 Req delay: 1044 ms)
Feb 07 22:14:26 dvb: "/dev/dvb/adapter3" tuning to "Digitenne: 754,000 kHz" (Autoscan)
Loglevel debug: disabled

RE: Signal quality slowly decreasing - Added by Alex . almost 13 years ago

Martijn de Munnik wrote:

Hi,

After I added all the muxes and the adapter scanned them all, I removed all the muxes which didn't have a muxid. All adapter now have the same 5 muxes. I also disabled the option "Monitor signal quality" on all cards. Still my recordings are with a lot of glitches. I enabled debug output in the logging for a sort amount of time. Does anyone know why the transport errors occur?

Hi Martijn,

I had similar errors (continuity errors with glitches) when watching without enough bandwidth; (Watching via WiFi might not be good enough if you have a few Mb/s per channel...)

Maybe two checks:

LAN
- Are you watching on the same machine that TV headend is installed on ? This would be a good check if your LAN network plays a role.

Signal

- Did you check your antenna-configuration on a regular digitenne-tuner? Although the signal in your area should be good, having many splitters will reduce the amount of signal significantly. Is the antenna in a good spot ?
NB: To determine if you have the right muxes for digitenne in your area you can look here ( but it looks ok as far as i can see right now):
http://radio-tv-nederland.nl/dvbt/digitenne-kpntv.html

Alex.

Ps In the end I added the muxes manually, starting with the Free-to-air mux with NL 1,2,3 to check if all works ok.

RE: Signal quality slowly decreasing - Added by Martijn de Munnik over 12 years ago

~~When I enable debug I get a lot of these lines too, I don't know what they mean?~~

~~Mar 26 22:25:47 dvb: "Digitenne: 786,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Constant FEC~~
~~Mar 26 22:25:48 dvb: "Digitenne: 786,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to Bursty FEC~~
~~Mar 26 22:26:37 dvb: "Digitenne: 786,000 kHz" on adapter "Philips TDA10046H DVB-T", status changed to OK~~

Sorry wrong topic

RE: Signal quality slowly decreasing - Added by Mario Zivkovic over 11 years ago

I have the same issue, and disabling the monitoring signal does not help.
My Tv-Card: Philips TDA-10023 DVB-C

Anyone other ideas?

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