Hi,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
I have three budget TT cards connected to a multiswitch in my attic, just a few meters cable away from my dish. Each DVB-S card is running on a different IRQ.
Is it possible, I just miswired the multiswitch?
Any idea on how to fix this problem would be greatly appreciated.
Hi Peer Oliver,
can you give us a hint what the problem is? So if you only have budget cards, what kind of frontend do you use? Need to know a bit more from your setup.
Regards, Martin
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Sonntag, 28. Januar 2007 15:43 An: VDR Mailing List Betreff: [vdr] Problems receiving couple of german channels DVB-S
Hi,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
I have three budget TT cards connected to a multiswitch in my attic, just a few meters cable away from my dish. Each DVB-S card is running on a different IRQ.
Is it possible, I just miswired the multiswitch?
Any idea on how to fix this problem would be greatly appreciated.
Hello martin,
can you give us a hint what the problem is? So if you only have budget cards, what kind of frontend do you use? Need to know a bit more from your setup.
Sorry for not being more verbose.
I am using streamdev-server on the VDR in the attic, and VLC as a frontend running downstairs on a WinXP or Ubuntu system. The problem is a totally distorted picture, like when I have thunderstorm outside with bad reception. Block artefacts etc. Sometimes it gets so bad, VLC quits from errors.
The funny thing is, it is ONLY on some of the channels.
Hi Oli,
have you installed femon? Have you had a look at the perception level? What does it say? Is there a difference when tuning to SAT.1 (which is on the same stream like Pro7).
One other thing that comes to my mind: Sat1 and Pro7 use 7.5MBit/s whereas ARD, ZDF and stuff use 15MBit, which can be a problem on poor network performance.
I also use streamdev-server a lot, over my 802.11g WLAN .. with VLC on Vista already. I use it, to watch TV in my bedroom.
Martin
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Sonntag, 28. Januar 2007 17:49 An: VDR Mailing List Betreff: Re: AW: [vdr] Problems receiving couple of german channels DVB-S
Hello martin,
can you give us a hint what the problem is? So if you only have budget cards, what kind of frontend do you use? Need to know a bit more from your setup.
Sorry for not being more verbose.
I am using streamdev-server on the VDR in the attic, and VLC as a frontend running downstairs on a WinXP or Ubuntu system. The problem is a totally distorted picture, like when I have thunderstorm outside with bad reception. Block artefacts etc. Sometimes it gets so bad, VLC quits from errors.
The funny thing is, it is ONLY on some of the channels.
Hi martin,
thanks for your help.
have you installed femon? Have you had a look at the perception level? What does it say?
I have it installed, and this is the output:
First without specific tuning to any channel
vdr:~# femon -a 0 using '/dev/dvb/adapter0/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b9b9 | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal baba | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal baba | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 1 using '/dev/dvb/adapter1/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 2 using '/dev/dvb/adapter2/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b8b8 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK
And now I switch on VLC to ARD, and receive this:
vdr:~# femon -a 2 using '/dev/dvb/adapter2/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b6b6 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b5b5 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b6b6 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 1 using '/dev/dvb/adapter1/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 0 using '/dev/dvb/adapter0/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal baba | snr b7f0 | ber 00000042 | unc 00000042 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
To me, I see a difference within the signal. But unfortunately, I can't interpret the message.
Is there a difference when tuning to SAT.1 (which is on the same stream like Pro7).
SAT.1, RTL and Pro7 look good, all the time.
One other thing that comes to my mind: Sat1 and Pro7 use 7.5MBit/s whereas ARD, ZDF and stuff use 15MBit, which can be a problem on poor network performance.
I have the ASTRA.HD channel running right now in the background (S19.2E-1-1088-21101) and it works perfect. Input-Bitrare according to VLC is ~ 19MBit.
I also use streamdev-server a lot, over my 802.11g WLAN .. with VLC on Vista already. I use it, to watch TV in my bedroom.
I also use VOMP to connect Hauppauge MediaMVPs and they have the same problem with those channels. Do you know anything else, that ARD + ZDF have in common, that is different from Pro7 and RTL? Is it possible, I have plugged the cables wrong into the Multiswitch?
Thanks for your help on a sunday afternoon :-)
Hi,
there is a plugin Femon available - much nicer output! You should check it out! Then you have clear text messages.
So, I'm no expert, but "ber" and "unc" must be zero (I'm sure you can have a look in wiki). So, as you see, you had some values there. This seems then to be a signal problem. Either your sat dish is not perfectly set up or you may have problems with v/h switching. Btw: I use femon plugin in vdr to adjust my dish. So how did you do?
Regards, Martin
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Sonntag, 28. Januar 2007 18:57 An: VDR Mailing List Betreff: Re: [vdr] Problems receiving couple of german channels DVB-S
Hi martin,
thanks for your help.
have you installed femon? Have you had a look at the perception level?
What
does it say?
I have it installed, and this is the output:
First without specific tuning to any channel
vdr:~# femon -a 0 using '/dev/dvb/adapter0/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b9b9 | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal baba | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal baba | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr b7f6 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 1 using '/dev/dvb/adapter1/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bebe | snr b7fc | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 2 using '/dev/dvb/adapter2/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b7b7 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b8b8 | snr b7fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK
And now I switch on VLC to ARD, and receive this:
vdr:~# femon -a 2 using '/dev/dvb/adapter2/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal b6b6 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b5b5 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b6b6 | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 1 using '/dev/dvb/adapter1/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
vdr:~# femon -a 0 using '/dev/dvb/adapter0/frontend0' FE: Samsung S5H1420 DVB-S (SAT) status 1f | signal baba | snr b7f0 | ber 00000042 | unc 00000042 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bbbb | snr b7f0 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
To me, I see a difference within the signal. But unfortunately, I can't interpret the message.
Is there a difference when tuning to SAT.1 (which is on the same stream like Pro7).
SAT.1, RTL and Pro7 look good, all the time.
One other thing that comes to my mind: Sat1 and Pro7 use 7.5MBit/s whereas ARD, ZDF and stuff use 15MBit, which can be a problem on poor network performance.
I have the ASTRA.HD channel running right now in the background (S19.2E-1-1088-21101) and it works perfect. Input-Bitrare according to VLC is ~ 19MBit.
I also use streamdev-server a lot, over my 802.11g WLAN .. with VLC on
Vista
already. I use it, to watch TV in my bedroom.
I also use VOMP to connect Hauppauge MediaMVPs and they have the same problem with those channels. Do you know anything else, that ARD + ZDF have in common, that is different from Pro7 and RTL? Is it possible, I have plugged the cables wrong into the Multiswitch?
Thanks for your help on a sunday afternoon :-)
Hello Martin,
there is a plugin Femon available - much nicer output! You should check it out! Then you have clear text messages.
Problem here is, I don't have access to the regular VDR OSD.
So, I'm no expert, but "ber" and "unc" must be zero (I'm sure you can have a look in wiki). So, as you see, you had some values there.
I will see what I can find.
This seems then to be a signal problem. Either your sat dish is not perfectly set up or you may have problems with v/h switching. Btw: I use femon plugin in vdr to adjust my dish. So how did you do?
The dish had been setup ages ago. So, I guess, I will have a look at the switching.
Thanks for your help.
Peer Oliver Schmidt wrote:
Hello Martin,
there is a plugin Femon available - much nicer output! You should check it out! Then you have clear text messages.
Problem here is, I don't have access to the regular VDR OSD.
I think it's worth using your ubuntu system to get to the vdr interface every now and then..
Which ubuntu are you using?
I had to download and compile xine-lib (for multiple audio streams to work), vdr-1.4.5 (for the development environment) and xineliboutput, then compiled xinelibout to run as a frontend.
(if you want, I can pack my compiled archives up of these environments and let you just run make install on them..)
vdr-sxfe xvdr://vdrserver works to get me a vdr interface and picture. You can even use a remote with it - very nice for watching tv from the bed.
On the server side, compile xineliboutput but don't run a local frontend, allow remote connections.
For windows, I found the vompclient excellent, although no support yet for multiple audio streams. Although it won't solve the problem here of testing the signal level.
So, I'm no expert, but "ber" and "unc" must be zero (I'm sure you can have a look in wiki). So, as you see, you had some values there.
I will see what I can find.
This seems then to be a signal problem. Either your sat dish is not perfectly set up or you may have problems with v/h switching. Btw: I use femon plugin in vdr to adjust my dish. So how did you do?
The dish had been setup ages ago. So, I guess, I will have a look at the switching.
Thanks for your help.
Hello Rob,
Problem here is, I don't have access to the regular VDR OSD.
I think it's worth using your ubuntu system to get to the vdr interface every now and then..
Which ubuntu are you using?
feisty
I had to download and compile xine-lib (for multiple audio streams to work), vdr-1.4.5 (for the development environment) and xineliboutput, then compiled xinelibout to run as a frontend.
(if you want, I can pack my compiled archives up of these environments and let you just run make install on them..)
I'd appreciate that. Thanks.
vdr-sxfe xvdr://vdrserver works to get me a vdr interface and picture. You can even use a remote with it - very nice for watching tv from the bed.
On the server side, compile xineliboutput but don't run a local frontend, allow remote connections.
I am using the deb packages provided by e-tobi at the moment
For windows, I found the vompclient excellent, although no support yet for multiple audio streams. Although it won't solve the problem here of testing the signal level.
I am using VOMP successfully with the Hauppauge MediaMVP. After installing the DirectX SDK the VOMP-Windows Client works ok, but as you've said, it won't solve the signal problem.
I will go and try the ubuntu route.
Thanks for your help.
Hello Rob,
there is a plugin Femon available - much nicer output! You should check it out! Then you have clear text messages.
Problem here is, I don't have access to the regular VDR OSD.
I think it's worth using your ubuntu system to get to the vdr interface every now and then..
ok, I am now running vdr-sxfe and I have the OSD. Thanks for kicking me in my behind :-)
Under http://theinternet.dyndns.org/~pos/Bildschirmfoto-VDR.png
is a screenshot displaying the signal information.
I have switched a little bit around, and a couple of the ARD channels, like EinsExtra, EinsFestival and EinsPlus work fine, ZDFtheaterkanal, ZDFdokukanal and ZDFinfokanal do exhibit the problem, that BER and UNC contains numbers != 0, not large always maximum 2 (hex)digits, but none the less.
Assuming I have crossed some high and lowband connection between the multiswitch and the dish, am I right to assume, that I would get no picture at all?
Peer Oliver Schmidt wrote:
Hi,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
I have three budget TT cards connected to a multiswitch in my attic, just a few meters cable away from my dish. Each DVB-S card is running on a different IRQ.
Is it possible, I just miswired the multiswitch?
Any idea on how to fix this problem would be greatly appreciated.
A friend of mine has problems on similar channels. We found out, that they result from interferences with his DECT wireless phone. Maybe you should check that by powering of the phones and base station?
So long,
Hello Patrick Cernko,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
[..]
A friend of mine has problems on similar channels. We found out, that they result from interferences with his DECT wireless phone. Maybe you should check that by powering of the phones and base station?
I don't have any DECT phones in the house :-), and the W-LAN APs are far away. But thanks for the tip, I will keep it mind for the future.
Another thing that comes to my mind. We eliminate everything that might cause some interaction problem.
Get rid of any multiswitch - so just one LNB directly connected to one DVB-S card. No other card in the system. Do you still see the problems?
Let me know, Martin
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 11:23 An: VDR Mailing List Betreff: Re: [vdr] Problems receiving couple of german channels DVB-S
Hello Patrick Cernko,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
[..]
A friend of mine has problems on similar channels. We found out, that they result from interferences with his DECT wireless phone. Maybe you should check that by powering of the phones and base station?
I don't have any DECT phones in the house :-), and the W-LAN APs are far away. But thanks for the tip, I will keep it mind for the future.
martin schrieb:
Another thing that comes to my mind. We eliminate everything that might cause some interaction problem.
Get rid of any multiswitch - so just one LNB directly connected to one DVB-S card. No other card in the system. Do you still see the problems?
IIRC, unfortunately, this won't work, as far as I understand the LNB. It is one of those 4-connector (I never know whether these are the Quad LNBs or Quattro LNBs) LNBs that NEEDS a multiswitch.
Or is my knowledge wrong on the above?
And BTW: kyrill moved my SAT dish .. so, why are you sure, that your dish is rocket solid?
We have had the problems for a long time ... :-)
Okay .. but you still can reduce your system down to one DVB-S card ..
So, what do you plan to prove that your multiswitch is not broken? What do you do to doublecheck, that your sat dish is correctly set up?
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 18:09 An: VDR Mailing List Betreff: Re: AW: [vdr] Problems receiving couple of german channels DVB-S
martin schrieb:
Another thing that comes to my mind. We eliminate everything that might cause some interaction problem.
Get rid of any multiswitch - so just one LNB directly connected to one
DVB-S
card. No other card in the system. Do you still see the problems?
IIRC, unfortunately, this won't work, as far as I understand the LNB. It is one of those 4-connector (I never know whether these are the Quad LNBs or Quattro LNBs) LNBs that NEEDS a multiswitch.
Or is my knowledge wrong on the above?
And BTW: kyrill moved my SAT dish .. so, why are you sure, that your dish is rocket solid?
We have had the problems for a long time ... :-)
Hello martin,
thanks for your patience.
Okay .. but you still can reduce your system down to one DVB-S card ..
Yes, that I will do.
So, what do you plan to prove that your multiswitch is not broken?
I've changed it to another one.
What do you do to doublecheck, that your sat dish is correctly set up?
Ups, this sounds like I angered you. Sorry, if I did.
If the dish is misaligned, I assume I would have problems in all channels, wouldn't I?
Off upstairs to remove all but one card, and see what happens.
Hello again,
Off upstairs to remove all but one card, and see what happens.
back to the PC.
Same problem. Removed two of DVB-cards, no change.
Moved the cable to different ports on the multiswitch, no change.
Any other idea?
http://www.flysat.com/astra19.php
Pro7, Sat1 comes Vertical ZDF,ARD,RTL comes horizontal.
If this is a pattern, can it be that you LNB is twisted? So H/V is not perfectly set up?
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 19:50 An: VDR Mailing List Betreff: Re: [vdr] Problems receiving couple of german channels DVB-S
Hello martin,
thanks for your patience.
Okay .. but you still can reduce your system down to one DVB-S card ..
Yes, that I will do.
So, what do you plan to prove that your multiswitch is not broken?
I've changed it to another one.
What do you do to doublecheck, that your sat dish is correctly set up?
Ups, this sounds like I angered you. Sorry, if I did.
If the dish is misaligned, I assume I would have problems in all channels, wouldn't I?
Off upstairs to remove all but one card, and see what happens.
Martin,
you are amazing. You put very much work into helping me. I guess one day, I will have to buy you a beer or two :-)
http://www.flysat.com/astra19.php
Pro7, Sat1 comes Vertical ZDF,ARD,RTL comes horizontal.
If this is a pattern, can it be that you LNB is twisted? So H/V is not perfectly set up?
Unfortunately, this is not the case. As written in one of my many messages, EinsPlus can be received without a problem. And if I understand the information in the channels.conf correct, it comes Horizontal as well. And RTL is looking good as well ...
Damn, there has to be a pattern/reason
Any obstacles in the way, like trees or so? There is something thats called Fresnel zone, which can be painful.
Any oscillating frequencies in your PC that may interfere the ~1GHz ZF signal?
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 21:47 An: VDR Mailing List Betreff: Re: AW: [vdr] Problems receiving couple of german channels DVB-S
Martin,
you are amazing. You put very much work into helping me. I guess one day, I will have to buy you a beer or two :-)
http://www.flysat.com/astra19.php
Pro7, Sat1 comes Vertical ZDF,ARD,RTL comes horizontal.
If this is a pattern, can it be that you LNB is twisted? So H/V is not perfectly set up?
Unfortunately, this is not the case. As written in one of my many messages, EinsPlus can be received without a problem. And if I understand the information in the channels.conf correct, it comes Horizontal as well. And RTL is looking good as well ...
Damn, there has to be a pattern/reason
Good morning martin,
Any obstacles in the way, like trees or so? There is something that’s called Fresnel zone, which can be painful.
It is possible that some trees are in the way, but I'd say the house is far enough away, and the dish is high enough. And would an obstacle create problems only on some channels and not others?
Any oscillating frequencies in your PC that may interfere the ~1GHz ZF signal?
Well, it is regular PC with most stuff on board, except graphics card and the three DVB-S boards.
Hello list,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
I've tried using szap to see if I can find the problem in one of my DVB-S cards. Unfortunately, no matter which card I use, I have bad reception for a couple of channels, and good reception for others.
Here is an excerpt from the szap log:
Bad reception (ZDF):
vdr:~# szap -a 0 -n 2 reading channels from file '/root/.szap/channels.conf' zapping to 2 'ZDF': sat 0, frequency = 11954 MHz H, symbolrate 27500000, vpid = 0x006e, apid = 0x0078 using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' status 00 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 01 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 00 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 1f | signal b9b9 | snr fffe | ber 0000e668 | unc 0000e668 | FE_HAS_LOCK status 1f | signal baba | snr fffe | ber 0000000c | unc 0000000c | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 0000000b | unc 0000000b | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 0000001d | unc 0000001d | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000021 | unc 00000021 | FE_HAS_LOCK
Good reception (RTL): vdr:~# szap -a 0 -n 5 reading channels from file '/root/.szap/channels.conf' zapping to 5 'RTL': sat 0, frequency = 12188 MHz H, symbolrate 27500000, vpid = 0x00a3, apid = 0x0068 using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' status 01 | signal b8b8 | snr fffe | ber 0000001a | unc 0000001a | status 1f | signal b7b7 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b8b8 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK
The interrupts:
vdr:~# cat /proc/interrupts CPU0 0: 2373754725 IO-APIC-edge timer 1: 9 IO-APIC-edge i8042 8: 1 IO-APIC-edge rtc 9: 0 IO-APIC-level acpi 14: 4835536 IO-APIC-edge ide0 15: 219 IO-APIC-edge ide1 50: 0 IO-APIC-level ohci_hcd:usb1 58: 0 IO-APIC-level ehci_hcd:usb2 66: 441811465 IO-APIC-level eth0 217: 298617322 IO-APIC-level saa7146 (0) 225: 265391314 IO-APIC-level saa7146 (1) 233: 271195814 IO-APIC-level saa7146 (2) NMI: 0 LOC: 2373832282 ERR: 0 MIS: 0
lshw Information for one of the cards (all identical):
*-multimedia:0 description: Multimedia controller product: SAA7146 vendor: Philips Semiconductors physical id: 6 bus info: pci@05:06.0 version: 01 width: 32 bits clock: 33MHz capabilities: bus_master configuration: driver=budget dvb resources: iomemory:da000000-da0001ff irq:217
Any and help is greatly appreciated.
Okay,
we need to put then an eye on your hardware setup - this is a problem before the DVB-S cards. You where talking about 3 DVB-S cards, but how many LNB's do you have? How have you wired the system? We have: horizontal / vertical polarization and then lower and upper band! This makes 2x2 = 4 possible areas. So, if you go with more than 2 cards - 3 or 4 or more, you need a quad LNB with maybe some additional hardware.
Martin
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 15:31 An: VDR Mailing List Betreff: Re: [vdr] Problems receiving couple of german channels DVB-S
Hello list,
I have problems receiving some channels (ARD, ZDF,N3, DMAX) in good quality. Receiving other channels (SAT.1, RTL, Pro7, Das Vierte) works just fine.
I've tried using szap to see if I can find the problem in one of my DVB-S cards. Unfortunately, no matter which card I use, I have bad reception for a couple of channels, and good reception for others.
Here is an excerpt from the szap log:
Bad reception (ZDF):
vdr:~# szap -a 0 -n 2 reading channels from file '/root/.szap/channels.conf' zapping to 2 'ZDF': sat 0, frequency = 11954 MHz H, symbolrate 27500000, vpid = 0x006e, apid = 0x0078 using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' status 00 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 01 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 00 | signal b9b9 | snr fffe | ber 00000003 | unc 00000003 | status 1f | signal b9b9 | snr fffe | ber 0000e668 | unc 0000e668 | FE_HAS_LOCK status 1f | signal baba | snr fffe | ber 0000000c | unc 0000000c | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 0000000b | unc 0000000b | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 0000001d | unc 0000001d | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000021 | unc 00000021 | FE_HAS_LOCK
Good reception (RTL): vdr:~# szap -a 0 -n 5 reading channels from file '/root/.szap/channels.conf' zapping to 5 'RTL': sat 0, frequency = 12188 MHz H, symbolrate 27500000, vpid = 0x00a3, apid = 0x0068 using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' status 01 | signal b8b8 | snr fffe | ber 0000001a | unc 0000001a | status 1f | signal b7b7 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b8b8 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal b9b9 | snr fffe | ber 00000000 | unc 00000000 | FE_HAS_LOCK
The interrupts:
vdr:~# cat /proc/interrupts CPU0 0: 2373754725 IO-APIC-edge timer 1: 9 IO-APIC-edge i8042 8: 1 IO-APIC-edge rtc 9: 0 IO-APIC-level acpi 14: 4835536 IO-APIC-edge ide0 15: 219 IO-APIC-edge ide1 50: 0 IO-APIC-level ohci_hcd:usb1 58: 0 IO-APIC-level ehci_hcd:usb2 66: 441811465 IO-APIC-level eth0 217: 298617322 IO-APIC-level saa7146 (0) 225: 265391314 IO-APIC-level saa7146 (1) 233: 271195814 IO-APIC-level saa7146 (2) NMI: 0 LOC: 2373832282 ERR: 0 MIS: 0
lshw Information for one of the cards (all identical):
*-multimedia:0 description: Multimedia controller product: SAA7146 vendor: Philips Semiconductors physical id: 6 bus info: pci@05:06.0 version: 01 width: 32 bits clock: 33MHz capabilities: bus_master configuration: driver=budget dvb resources: iomemory:da000000-da0001ff irq:217
Any and help is greatly appreciated.
Hello again martin,
we need to put then an eye on your hardware setup - this is a problem before the DVB-S cards. You where talking about 3 DVB-S cards, but how many LNB's do you have? How have you wired the system? We have: horizontal / vertical polarization and then lower and upper band! This makes 2x2 = 4 possible areas. So, if you go with more than 2 cards - 3 or 4 or more, you need a quad LNB with maybe some additional hardware.
I have four cables going from my LNB to a multiswitch. Three cables go from the multiswitch to the DVB-S cards.
If any of the four cables going to the Multiswitch were wrong, wouldn't the channels not work at all? I've looked thru the different channel settings, but could not find anything obvious, which would differentiate the good and the bad channels ...
Any ideas what else I can test?
Thanks.
Again: reduce to one DVB-S card, get rid of the switch, direct connection from dish to DVB card.
And BTW: kyrill moved my SAT dish .. so, why are you sure, that your dish is rocket solid?
-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Peer Oliver Schmidt Gesendet: Montag, 29. Januar 2007 17:37 An: VDR Mailing List Betreff: Re:[vdr] Problems receiving couple of german channels DVB-S
Hello again martin,
we need to put then an eye on your hardware setup - this is a problem
before
the DVB-S cards. You where talking about 3 DVB-S cards, but how many LNB's do you have? How have you wired the system? We have: horizontal / vertical polarization and then lower and upper band! This makes 2x2 = 4 possible areas. So, if you go with more than 2 cards - 3 or 4 or more, you need a quad LNB with maybe some additional hardware.
I have four cables going from my LNB to a multiswitch. Three cables go from the multiswitch to the DVB-S cards.
If any of the four cables going to the Multiswitch were wrong, wouldn't the channels not work at all? I've looked thru the different channel settings, but could not find anything obvious, which would differentiate the good and the bad channels ...
Any ideas what else I can test?
Thanks.
-
martin -
Patrick Cernko -
Peer Oliver Schmidt -
Rob Davis