Missing channels QAM

[ceandra]

I have tried a number of ways of scanning, but cannot seem to get a few non-HD channels in clear QAM.

The channels are listed at http://www.silicondust.com/hdhomerun/lin...code=87123 under channel 123. I am mainly interested in WGN, 123-909.

I have the Aver M780 card, and am getting pretty much everything but the 123 channels. Most of the "unknown" ones listed are religious channels. I have Comcast basic cable, which is basically just the OTA channels in clear QAM, since I have mountains blocking the antennae.

I have scanned with the standard QAM.ini, with channel numbers. I have also scanned with frequencies.

When I use AverMedia, it finds all of these channels, though it lists little information. AverTV6 lists the WGN as 123.116 It finds the others as well, for example 123-904 and 123-905 are 123.111 and 123.112.

When I scan with GBPVR, I get some 123 channels, but they are repeats of some of the 125 channels. On 124, I get CSPAN (AverTV6 at 124.118), but not CSPAN2 (which does come in at 124.119 on AverTV6).

Both AverMEdia and AverTV6 find all of the channels listed on teh website above. GBPVR finds most, but seems to have real problems at 123, and some issues at 124.

Any thoughts?

When scanning by frequency, it found 125 at 799500 and 799250, and it found the repeats (123) I believe at 787500 and 787250. I do not have frequency information from AVER as to where it found 123 correctly.

I could make a small QAM.INI to quickly scan the areas of interest if the logs from such would help. I don't have the logs right now, as I re-scanned the whole range again.

Any thoughts? Any way to further cross reference the Aver stuff? I have removed AverTV6, but could re-install. It might have further detailed information if I dug into it. The Aver Media Center hides all that kind of stuff.

Thansk
Chuck

[sub]

Nothing springs to mind. I really dont know very much about AverMedia devices.

Do a scan though, then zip and attach the logs and I'll see if I can see any reason.

[ceandra]

Should I just scan 123 and 124?

[sub]

Yeah, ok.

[ceandra]

OK, I scanned channels 123 through 126. I am posting all of the logs that were new during the scan, the cache file, and the qam.ini. I also annotated a cache file with the apparent channel numbers from the website listing of available channels, where I could tell what they were. The annotations are shown as four "****", followed by the apparent channel number as listed on teh web site. The important thing is the correspondence between what was found on 125 and 123, and the fact that those on 123 on the web site don't show up at all.

If this does not help, I'll try re-loading AverTV6 (not a great program) and see if it gives more detail when it finds the channels.

Thanks
Chuck

[ceandra]

Sub:

I re-installed Aver TV6. I realized teh number after the decimal (ie, 123.116) is simply sequential, so the only number that means anything is the channel, 123. It found the channels of interest on 787250. It did not work correctly with the data already in place from a prior scan, but a re-scan found the 123 channels correctly. The re-scan by gbpvr does not.

I cannot find anything (except encrypted) that would give me more data from AVER as to the details within the channel. But, the aver software can see these channels. I don't have any problem elsewhere, ie, gbpvr finds everything else as it should.

Thanks
Chuck

[sub]

You'd probably need to find more details about the channels that were missing or I'd have no idea what to look for. It'd be ideal if you can find the PIDs it uses etc. I can see a pile of channels found in the logs, but no way to tell if this is some of the channels you're missing or not.

[ceandra]

Sub:

I realize this will be hard from a distance.
The channels in 123 in the cache that I did not comment on do not show anything. They may be encrypted for richer customers.
What is a "PID" and where do people usually look for them?
Thanks
Chuck

[sub]

Its a bit hard to describe, but basically a PID identifies one stream of data (maybe video, maybe audio, maybe data). Each channel is a combination of a few PIDs - a video PID, and one or more audio PIDs, and some meta-data PIDs.

I can see in your logs what PIDs were found, so if I knew what ones were missing, I'd have something to investigate further.

What is a "PID" and where do people usually look for them?

Some applications provide a mechanism for viewing the current channel PIDs. I have no idea whether the Aver software does or not though.

[ceandra]

I should also point out that the Aver software does not find these repeat channels in 123 and 124, only the correct place in 125. In the log for gbpvr, there are only 3 channels found (the "unknowns") in 123 that did not display, and all of the ones that display are incorrect for 123. There are about 8 that are missing, found by the website and found by Aver (and displayed).

Is it possible a bug in either gbpvr or the Aver driver could be causing a mis-tune of some sort? I can't imagine how, and I am sure you cannot answer for Aver.

Thanks
Chuck