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| OTA HD5500 Channel Scan: No Tables on certain channels only? http://forums.linhes.org/viewtopic.php?f=6&t=14605 |
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| Author: | jmacmythtv [ Sat Mar 17, 2007 5:38 pm ] |
| Post subject: | OTA HD5500 Channel Scan: No Tables on certain channels only? |
Hi everyone, I have a pair of HD5500 working well with OTA HD signals that I receive from the US (NBC, CBS, 2xPBS, FOX). However, there are a couple of channels that I can't tune that are broadcast locally (CBC and SRC in Montreal). When I perform a scan in mythsetup, I get a signal lock, then it tells me that there are "no tables". Running a scan in ssh with a couple of -v's shows that there are "filter timeouts". I also increased the filter timeout with the -5 option to no avail. Not really sure where to go from here however, after adding the channel, myth shows the "L___" and tells me it can't lock. I don't think that this is a signal strength issue since I am in Montreal close to these broadcast points (relative to the US channels that I pick up). Any thoughts / guidance would be very much appreciated. I am running R5E50. tks! |
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| Author: | Too Many Secrets [ Sat Mar 17, 2007 7:50 pm ] |
| Post subject: | |
I have the same issue with one channel. Won't Lock consistantly. I have not been able to resolve with an outdoor antenna. I can get a 99% signal but no Lock. Do you sometimes get lowercase letters within the ( )s? This Docmight help. |
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| Author: | jmacmythtv [ Sun Mar 18, 2007 6:25 am ] |
| Post subject: | |
Thanks for the link ... Now that you mention it, yes, my "L" is lowercase ... however, this is all that I ever get (none of the other letters). Is the channel that you have problems with located close to you? Are you downtown with lots of buildings? I have read that with 8VSB, reflections and scatter can be very problematic and that a low powered directional antenna may be necessary. This is what I get when I scan for the problematic local channels: scan -vvvvv -5 cbcrc-ATSC scanning cbcrc-ATSC using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' >>> tune to: 503028615:8VSB >>> tuning status == 0x1f add_filter:1377: add filter pid 0x1ffb start_filter:1317: start filter pid 0x1ffb table_id 0xc8 update_poll_fds:1297: poll fd 4 add_filter:1377: add filter pid 0x0000 start_filter:1317: start filter pid 0x0000 table_id 0x00 update_poll_fds:1297: poll fd 5 update_poll_fds:1297: poll fd 4 WARNING: filter timeout pid 0x0000 remove_filter:1385: remove filter pid 0x0000 stop_filter:1363: stop filter pid 0x0000 update_poll_fds:1297: poll fd 4 WARNING: filter timeout pid 0x1ffb remove_filter:1385: remove filter pid 0x1ffb stop_filter:1363: stop filter pid 0x1ffb dumping lists (0 services) Done. or using dtvscan: dtvscan -dvb 0 -fm -c 19:21 -o cbcrc.dtvscan dtvscan ver 1.0.4 - by Jack Kelliher (c) 2002,2005,2006 Opened FE:/dev/dvb/adapter0/frontend0 3 Opened DMX:/dev/dvb/adapter0/demux0 4 Opened DVR:/dev/dvb/adapter0/dvr0 5 channel = 19 VSB_8 Signal: 7103 look for sync Unable to recieve valid packets no pid or atsc tables found channel = 20 VSB_8 channel = 21 VSB_8 Thanks! |
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