Lots of channels no TV and No EPG (Freesat over SAT>IP)

[satforall]

I’d check your Ethernet cable first. Swap in a new Ethernet cable first and make sure there’s nothing out of the ordinary dragging down on your LAN.

What version of the Digibit Twin do you have. You can check on the underside of the box to see that.

[mvallevand]

The '-t 60' seems to mess things up. Are you sure it is in seconds?

I figured this out, after 59 you need to add the minute so it should be  -t 1:00

Martin

[PaulMc]

I’d check your Ethernet cable first. Swap in a new Ethernet cable first and make sure there’s nothing out of the ordinary dragging down on your LAN.

What version of the Digibit Twin do you have. You can check on the underside of the box to see that.

Thanks for the suggestions. I swapped out the network cable and it made no difference. The rest of the LAN is running at 2.5G (I know this device only operates at 100M) so I'm pretty sure that's OK. There are no other issues apart from the fact that the QNAP sometimes gets busy doing backups etc. Most recordings are done outside of office hours when it should be "idle" i.e. all the scheduled tasks are during office hours and most recordings are done in the evening.

Below is a photo of the label you mentioned. 

After reading some reviews on Amazon and elsewhere this unit does appear to vary in quality between the two tuners so I'm fairly confident that it's not my end. Swapping the cables made no difference.

The other screen shot shows a typical moment while TVHeadend is scanning. It varies quite a lot but signal quality never reaches 100%. The difference between the two tuners is fairly consistent. Tuner 1 always appears around 10% lower than tuner 2.

[PaulMc]

The '-t 60' seems to mess things up. Are you sure it is in seconds?

I figured this out, after 59 you need to add the minute so it should be  -t 1:00

Martin

Thanks Martin. If sub needs any more scans I will make that mod.

[satforall]

There’s three versions of the Digibit Twin. Version 1 is a write off. Version 2 has an issue with the tuning chip and overheats and shuts down. They eventually got things right with Version 3. I noted yours is Version 3. Assuming your dish is correctly aligned and all your cabling will is correctly connected up it could be a failing tuner at fault.

[PaulMc]

There’s three versions of the Digibit Twin. Version 1 is a write off. Version 2 has an issue with the tuning chip and overheats and shuts down. They eventually got things right with Version 3. I noted yours is Version 3. Assuming your dish is correctly aligned and all your cabling will is correctly connected up it could be a failing tuner at fault.

Thanks. I borrowed a sat tester when the cable and socket was originally installed and the results were good so I'm hoping that things haven deteriorated since then and are the current cause of signal loss. I don't have access to the tester any more so I don't know how it is at the moment. I'm looking for an alternative to the Digibit Twin as I feel that's the culprit. However, there doesn't seem to be a lot out there at a reasonable price.

[satforall]

Yes you’ve got that right. For price/performance you won’t beat the Digibit Twin. Everything else in that category is €400+.

I have to say that with the odd green screen moment and sync issue it’s performing well here. One thing that it is vital is that you have a continuously steady signal feeding the Digibit Twin.

Not sure what your setup is but I’ve got a 1.2m motorised dish with a quad feed LNB. One feed goes to the USALS motor and back to a set top box. That doubles as positioner. Two of the remaining three feeds from the LNB go directly to the Digibit Twin.

What I’d do now if I was you was check all my cabling and connections from the LNB to the Digibit Twin particularly if there are any switches involved along the line. Pick the lowest performing mux and ensure your dish and LNB skew are perfect and everything is optimally aligned.

[PaulMc]

Yes you’ve got that right. For price/performance you won’t beat the Digibit Twin. Everything else in that category is €400+.

I have to say that with the odd green screen moment and sync issue it’s performing well here. One thing that it is vital is that you have a continuously steady signal feeding the Digibit Twin.

Not sure what your setup is but I’ve got a 1.2m motorised dish with a quad feed LNB. One feed goes to the USALS motor and back to a set top box. That doubles as positioner. Two of the remaining three feeds from the LNB go directly to the Digibit Twin.

What I’d do now if I was you was check all my cabling and connections from the LNB to the Digibit Twin particularly if there are any switches involved along the line. Pick the lowest performing mux and ensure your dish and LNB skew are perfect and everything is optimally aligned.

Thanks again, yes, that was my plan. The location of the dish is a bit awkward to check though. I'm probably going to have to pay for someone to come out and check/realign things. This is a 12 year old Sky Quad LNB. I've two cables running from the LNB along the outside wall through to a socket on the inside. I've then a second cable (pair) running from the socket to the Digibit Twin. I've checked everything on the inside and it is a good as it can be as far as I can see. I did spot one thing today which surprised me. In TVHeadend there is a setting for "Idle scan:" which was ticked on both tuners. I could see the the lights toggle on and off as the software cycles through the muxes looking for changed channels. One thing I noticed was that if I tune one tuner to a channel and view that on screen then the idle scan will only be applied to the other tuner. This other tuner then acquires and releases the tuner every few seconds and continues with the scanning procedure. (Nearly) every time a new frequency was tuned there would be a tiny bit of interference on the picture and the log showed entries like the following:

Code:

2024-01-15 17:04:57.841 [WARNING] tsfix: transport stream H264, DTS discontinuity. DTS = 189090, last = 75690
2024-01-15 17:05:24.465 [   INFO] mpegts: 11225V in SatIP scan complete
2024-01-15 17:05:36.719 [WARNING] TS: SatIP/11225V/NHK World HD: H264 @ #2315 Continuity counter error (total 1)

The question is how I spend the money - a new receiver or getting the dish and LNB checked. It could end up with both needing to be replaced.

[satforall]

As promised a dvbv5-scan file of Astra 28.2 carried out on an Hauppauge HVR4000 pci card. While I have this system set up just let me know if you need anything further. For anyone else who wants to do a dvb5-scan of any satellite this will be the basic command format you will need. I noticed another user straggling with this command

dvbv5-scan -l extended /usr/share/dvb/dvb-s/Astra-28.2E

[satforall]

Yes you’ve got that right. For price/performance you won’t beat the Digibit Twin. Everything else in that category is €400+.

I have to say that with the odd green screen moment and sync issue it’s performing well here. One thing that it is vital is that you have a continuously steady signal feeding the Digibit Twin.

Not sure what your setup is but I’ve got a 1.2m motorised dish with a quad feed LNB. One feed goes to the USALS motor and back to a set top box. That doubles as positioner. Two of the remaining three feeds from the LNB go directly to the Digibit Twin.

What I’d do now if I was you was check all my cabling and connections from the LNB to the Digibit Twin particularly if there are any switches involved along the line. Pick the lowest performing mux and ensure your dish and LNB skew are perfect and everything is optimally aligned.

Thanks again, yes, that was my plan. The location of the dish is a bit awkward to check though. I'm probably going to have to pay for someone to come out and check/realign things. This is a 12 year old Sky Quad LNB. I've two cables running from the LNB along the outside wall through to a socket on the inside. I've then a second cable (pair) running from the socket to the Digibit Twin. I've checked everything on the inside and it is a good as it can be as far as I can see. I did spot one thing today which surprised me. In TVHeadend there is a setting for "Idle scan:" which was ticked on both tuners. I could see the the lights toggle on and off as the software cycles through the muxes looking for changed channels. One thing I noticed was that if I tune one tuner to a channel and view that on screen then the idle scan will only be applied to the other tuner. This other tuner then acquires and releases the tuner every few seconds and continues with the scanning procedure. (Nearly) every time a new frequency was tuned there would be a tiny bit of interference on the picture and the log showed entries like the following:

Code:

2024-01-15 17:04:57.841 [WARNING] tsfix: transport stream H264, DTS discontinuity. DTS = 189090, last = 75690
2024-01-15 17:05:24.465 [   INFO] mpegts: 11225V in SatIP scan complete
2024-01-15 17:05:36.719 [WARNING] TS: SatIP/11225V/NHK World HD: H264 @ #2315 Continuity counter error (total 1)

The question is how I spend the money - a new receiver or getting the dish and LNB checked. It could end up with both needing to be replaced.

I can't over emphasize enough that a direct feed from the LNB to the tuner rules out any possibility of deterioration in signal. in your case it sounds like your cable feed is running to a socket and then in turn to the Digibit. The required configuration will be one LNB output directly to Tuner 1 on the Digibit and another LNB output directly to Tuner 2 on the Digibit and nothing in between. I strongly suggest at minimum to replace your LNB and cabling. You didn't mention your dish size. Is it zone 1 or zone 2. Take this troubleshooting process in small steps. Start with the cheapest option first