Hi,
I have multiple DVB cards, two of them are based on cx23885 (Tevii
S471).
Ever since the transponder 12207V on 23.5E increased its FEC to 5/6
(8PSK. SR 27500), with the bitrate exceeding 60 Mbps, I cannot properly
receive any channels on it with the cx23885-based cards. Other cards,
even ordinary set-top boxes, work fine.
It seems that this problem is common for all other high-FEC 8PSK
transponders on this position.
When using w_scan, I get this problem with 12207V:
(time: 02:32) (time: 02:33) signal ok:
S2 f = 12207 kHz V SR = 27500 5/6 0,35 8PSK
Info: no data from NIT(actual)
And this stuff with other transponders like this one:
(time: 02:49) (time: 02:51) signal ok:
S2 f = 12304 kHz H SR = 27500 5/6 0,35 8PSK
WARNING: received garbage data: crc = 0x0b4533eb; expected crc =
0x37a28f06
increasing filter timeout.
WARNING: received garbage data: crc = 0x17593b3f; expected crc =
0x37a28f06
WARNING: received garbage data: crc = 0xc41b44f4; expected crc =
0x37a28f06
scan-s2 is able to find channels on 12207V, but without channel names.
When playing any of the channels, I get no picture and no sound, with
the BER being reported at around ~9000 (which is also nonsense, as
confirmed by other HW).
It also seems that this problem is encountered in other devices too:
http://www.linuxtv.org/pipermail/vdr/2012-November/026868.html
Any ideas, thoughts?
Thanks!
--
Luboš Doležel
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