[linux-dvb] Video and audio pid problems with dvb-t channels in Norway

Per Thomas Jahr perja at extern.uio.no
Sat Sep 29 20:55:33 CEST 2007


Just recently the national dvb-t net with mpeg4 opened here in Norway,
but the video and audio pid for me is always 0 after a scan.

I have a Hauppauge WinTV-HVR-1110 card and a compatible antenna (Cinergy
Antenna One) on Fedora 7 (kernel I use w_scan to create the
initial scan file (see below) and after that I use scandvb to create the
channels.conf file (see below). It finds 41 services. 

But, as I wrote, I can't get any video or audio pid in this file (except
for two scrambled channels where I only get the audio pid). I've moved
the antenna around the apartment (windows/balcony) without any success.
The wiki says that the reason is probably weak signal, but AFAIK I have
almost straight view to the antenna. Also the scan completes very
quickly (like 10-15 seconds).

Could it be that they don't transmit this info or maybe they use some
new standard for dvb-t since they use mpeg4? Or am I doing something
wrong (not unlikely :-))?

Also, what tool can I use to find out if the signal is weak or not? 

Initial scan file from w_scan

# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 722000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE
T 770000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE
T 794000000 8MHz 2/3 2/3 QAM64 8k 1/8 NONE

channels.conf (scandvb initial_scan_file > channels.conf)
(see http://heim.ifi.uio.no/~perja/channels.conf)

Per Thomas Jahr

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