Freeview dvb-t scan gives "tuning failed!!!" after 18th April switchover

April 18, 2012 [Tech]

Usually when the channel lineup changes, I just have to do this:

$ scan /usr/share/dvb/dvb-t/uk-CrystalPalace > ~/.mplayer/channels.conf

But this time it is failing with:

>>> tune to: 505833000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 505833000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!

(snip)

However, a more low-level scan with w_scan seems to be working today:

$ sudo apt-get install w-scan     # Install w_scan
$ w_scan -X > ~/.mplayer/channels.conf

I still can't see BBC Four at the moment...

UpdateIt looks like I have to scan when the channels are actually on air. I did this:

$ cd ~/.mplayer
$ w_scan -X > channels.conf.morning    # I ran this in the morning
$ w_scan -X > channels.conf.evening    # I ran this in the evening
$ cat channels.conf.morning channels.conf.evening | sort | uniq > channels.conf

Now I have both BBC Four and CBeebies, which pretty much covers us!

Comments

Another way to scan DVB channels: w_scan | The Angry Technician 2013-05-08

[…] messages after that, and no scan results. I’m not sure exactly what is causing this yet, but somebody else in the UK noticed this too, and suspects it began right after a very recent transmitter retune. Luckily, he also had a […]

Myatu 2012-06-12

Two words: THANK YOU! :)