Manual Scan Not Working?

[fausto]

thanks for the pointer, but no go.

I found 130.ini had all the Hotbid transponders so i saved the original and then deleted all the entries apart from the lines with tp 52 and 54 (see 130.zip attached) and tried a rescan. I got an error warning (error.jpg attached) and "scanning 1 of 101, strength 0, quality 0" in red beneath the scan list box.

Is my modified ini file valid, sub?

[martint123]

You have to change the line 0=101 to say how many entries there are, so change the 101 to 2 (I think).

[fausto]

Thanks. That appears to work in that a scan of 2 takes place and stops. Strength and quality on both 11766V and 11804V are still both 0 though!

I thought I'd better go back to basics and brought a TV and my old Manhattan STB into the room where I have the GBPVR PC and dish feed. I've just connected it all up and it works fine. I can get all Italian channels from Hotbird. I'm currently watching an old black and white movie in Italian on RAI tre! So that proves my dish, LNB and cable are OK.

I sort of knew that because a full Hotbird scan on the GBPVR config has and still does produce loads of channels - just not the two transponders I want!

So the remaining question is, why would a scan not detect these two frequencies when they really are there?

[sub]

Does the Hauppauge WinTV7 software find those channels?

The tuner on your Nova-S might not be as good as your STB, and it might just be a case of it failing to lock onto these transponders.

[fausto]

Never tried WinTV7. It's a bit late here now and it's been a long day. I'll try it tomorrow and report back. The STB is nothing special though and probably older than the Nova-S.

[fausto]

Well the answer is that Hauppauge WinTV7 software can't find those channels either. At the suggestion of Hauppauge support I also tried DVB Viewer without any success.

I would suspect a faulty pci card except that it can recieve hundreds of other TV and Radio channels using GBPVR, WinTV7 or DBVViewer - just not the two transponders I am interested in. As an analogue engineer I find it hard to conceive of a fault mechanism which would only prevent reception of a couple of transponders - a notch filter maybe? How do you get one of those by accident?

[martint123]

Wierd - could it be near one of the hi/low band switch over channels? Have you been tweaking of them?
That's about all I can think of. If it was near the band edges, then maybe a tuner design fault, but not in the middle of the range.
Since I got rid of my old 6 foot dish and ancient LNB from many, many years ago, I never seemed to manage to catch up with the technicalities of LNB switching.

[fausto]

Using DVB Viewer, I am now able to receive on 11766 V and 11804 V. I had to enter these frequencies manually into the channel entries for RIA(encrypted) on 10992 V. No scans ever found anything on 11766 and 11804 but forcing these frequencies onto existing channels worked! I don't suppose there is any way I can try this with GBPVR. Is there?

I spoke to Hauppauge support, who say that the tuner in the Nova-S+ must be faulty and that it is more economical to buy a new one rather than try to get the old one fixed. OTOH I can timer record with DVB Viewer for the time being and see how it goes.......

[fausto]

Wierd - could it be near one of the hi/low band switch over channels? Have you been tweaking of them?

No, I have not tweaked. I don't know how or what effect it would have. I guess 11766 and 11804 are both near the hig/low band transition

Here is my LNB Technical Specifications
Input: Output:
Low Band: 10,7 11,7 GHz Low Band: 950-1950 MHz
High Band: 11,7 ~ 12,75 GHz High Band: 1100-2150 MHz
Frequency: Noise Figure:
Low Band: 9,75 GHz Low/High Band: 0,1 dB
High Band: 10,6 GHz Conversion Gain: 50 dB (Min) c

Does this mean that the high/low switching is faulty? I'll have to search and read up how that is done.

[martint123]

Does this mean that the high/low switching is faulty? I'll have to search and read up how that is done.

Sorry, I haven't a clue - it was just a thought that the channel giving problems was near the LNB switchover point.
However, if it is a standard Sky LNB then I think the default settings in the config/source settings should be right.
Those frequencies don't seem to be used on the Sky satellites at 28.2 so I can't check my tuner to see if it receives OK.
If you can plug the frequencies directly into DVBViewer then I'd have to say the tuner is fine.

There is a file created by the scan process in ?:\Program Files\devnz\gbpvr\BDA with a name like SCAN-nn.cache and this is a text file with the techie details of the channels that can be mapped after the scan process. For Sky in the UK, these are often shared around as one or two folk have tuners that don't scan at all.
The details of the cache file will need some investigation by you, but things like freq, polarisation, various PIDS etc. But if you work from an existing good channel, it shouldn't be too bad.