Signal quality problem (1 Viewer)

[IkeV70]

After running 1.0.0.0 for many weeks without many problems I decided to install the latest FloppyDTV firmware and upgrade to MP 1.0.1.0. At first everything seemed fine, but today unfortunately I can no longer watch encrypted TV-channels due to extreme stuttering, permanent freezing most of the time. The FTA channels are fine. I also tried the preview in TV Server config, same problem. FTA channels are fine, Encrypted channels have severe stutter problems.
Looking at the logfiles there are loads of discontinuity errors, PES problems, etc. (At the moment I don't have the logfiles available, I'll post them later).
The funny thing is: The FireDTV Viewer has no problem whatsoever displaying scrambled channels.

If I look at the MP logs I find:

**************************************************
***** SIGNAL LEVEL: 98, SIGNAL QUALITY: 98 *****
**************************************************​

on the FTA channels,

**************************************************
***** SIGNAL LEVEL: 0, SIGNAL QUALITY: 0 *****
**************************************************​

or

**************************************************
***** SIGNAL LEVEL: 32, SIGNAL QUALITY: 32 *****
**************************************************​

on the encrypted channels.


also:

2009-04-13 20:29:39.000000 [17]: FireDTV: #0/1 pmt data:0x0 0x2 0x0 0x0 0x0 0x0 0x0 0x0 0x2B 0x0 0x3 0x1 0x2 0xB0 0x29 0x0 0x1F 0xC9 0x0 0x0 0xEB 0xC3 0xF0 0x6 0x9 0x4 0xB 0x0 0xEB 0xCB 0x2 0xEB 0xC3 0xF0 0x0 0x3 0x0 0x0 .... many more 0x0 ....
2009-04-13 20:29:39.125000 [17]: FireDTV:GetCAMStatus() finished
2009-04-13 20:29:39.125000 [17]: FireDTV:cam is inserted
2009-04-13 20:29:39.125000 [17]: FireDTV:cam is valid
2009-04-13 20:29:39.125000 [17]: FireDTV:cam is ready
2009-04-13 20:29:39.125000 [17]: subch:0 cam flags:True
2009-04-13 20:29:39.125000 [17]: subch:0 SetMpegPidMapping
2009-04-13 20:29:39.125000 [17]: subch:0 pid:BC3 pcr
2009-04-13 20:29:39.125000 [17]: subch:0 pid:BC2 pmt
2009-04-13 20:29:39.125000 [17]: subch:0 pid:BC3 video type:MPEG-2
2009-04-13 20:29:39.125000 [17]: subch:0 map pid:BC3 video type:MPEG-2
2009-04-13 20:29:39.125000 [17]: subch:0 pid:BC4 audio lang: type:MPEG-1
2009-04-13 20:29:39.125000 [17]: subch:0 map pid:BC4 audio lang: type:MPEG-1
2009-04-13 20:29:39.125000 [17]: subch:0 pid:BC5 teletext type:6
2009-04-13 20:29:39.125000 [17]: subch:0 map pid:BC5 teletext type:6
2009-04-13 20:29:39.125000 [17]: FireDTV: HW Filtering disabled.
2009-04-13 20:29:39.140625 [17]: subch:0 stop tif
2009-04-13 20:29:39.140625 [17]: WaitForPMT: sending PMT to CAM took 0.15625 seconds.
2009-04-13 20:29:39.140625 [17]: dvbt: tune: Graph running. Returning TvLibrary.Implementations.DVB.TvDvbChannel
2009-04-13 20:29:39.234375 [17]: card: Tuner locked: True
2009-04-13 20:29:39.234375 [17]: **************************************************
2009-04-13 20:29:39.234375 [17]: ***** SIGNAL LEVEL: 32, SIGNAL QUALITY: 32 *****
2009-04-13 20:29:39.234375 [17]: **************************************************​

This seems ok except for maybe low signal quality, but the stuttering is unacceptable.

The FireDTV support tools reports:

Status for device 1
Model : FloppyDTV T/CI
GUID : 0x0012870025001C4D
HW Ver.: 01.25.01
FW Ver.: 1.4.1 Build 60740
Driver : 4.8.0

Frontend Status:
Frequency.: 666032 kHz, Sig.Str.: 98%, BER: 0
Locked : YES

CAM Module: Conax 4.00e​

High signal quality, BER=0.

What could be going on here?





TV-Server Version: 1.0.1.0
MediaPortal Version: 1.0.1.0
MediaPortal Skin: Black&White 1080
Windows Version: XP SP3
CPU Type: Athlon
Motherboard: Gigabyte 780G
1. TV Card: Floppy DTV T/CI
1. TV Card Type: DVB T + CONAX CAM

 

[IkeV70]

I've created a few log files. First I tuned into an encrypted channel for a few minutes, TVSserver-Encrypted.rar and MediaPortal-Encrypted.rar. Severe stuttering.

Then I cleared the logs and restarted MP and TV Server, and tuned to two FTA channels. Everything fine.

 

[IkeV70]

Problem solved.

It seems I jumped to conclusions too soon. Further experimenting showed that the problem doesn't affect all encrypted channels, but only the 5 channels on DVB-T frequency 818.00 MHz. On FireDTV Viewer these 5 channels are on a different frequency.
I found out that the channel scan picked up these 5 channels on a different frequency, maybe another freq that's used in another area. After manually editting the frequency for the 5 channels everything works like a charm.

Suggestion for the next release: An easy way to manually select frequencies for channelscans.