Arch Linux

starfry

Member

From: Surrey, UK

Registered: 2010-08-18

Posts: 238

UK/London Crystal Palace DVB data post-switchover

Hi, good morning. Just posting this here in case it helps anyone based in the London area.

The UK digital switch over in the London area happened on 4th April (today) so you'll need to re-scan your dvb. For this to detect the new PSB1 (BBCA) mux you'll need to modify your "initial-tuning-data-file" that is passed to the "scan" command.

I found adding the following line into the file /usr/share/dvb/dvb-t/uk-CrystalPalace worked for me:

T 490000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE

You'll need to re-scan. This is what I do (I'm using the Arch VDR package):

scan -o vdr -e 3 -p -x 0 -t 3 -u -U -q -q /usr/share/dvb/dvb-t/uk-CrystalPalace > /var/lib/vdr/channels.conf

I hope this saves someone a few minutes' frustration

The below information is for use following DSO phase 2 (i.e. from April 18th):

# Digital Frequences After Digital Switch Over (DSO) April 2012

# C23  PSB1 BBCA 490.0 MHz   DVB-T  64QAM 200kW
T 490000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE

# C26  PSB2 D3+4 514.0 MHz   DVB-T  64QAM 200kW
T 514000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE

# C30- PSB3 BBCB 545.833 MHz DVB-T2 256QAM 200kW (Freeivew HD)
# I could not get DVB-T2 (for HD) to work with my hardware 
#T 545833000 8MHz 2/3 NONE QAM256 8k 1/128 NONE 

# C25  COM4 SDN  506.0 MHz   DVB-T  64QAM 200kW
T 506000000 8MHz 3/4 NONE QAM64 8k 1/32 NONE

# C22  COM5 ArqA 482.0 MHz   DVB-T  64QAM 200kW
T 482000000 8MHz 3/4 NONE QAM64 8k 1/32 NONE

# C28- COM6 ArqB 528.833 MHz DVB-T  64QAM 200kW
T 529833000 8MHz 3/4 NONE QAM64 8k 1/32 NONE

Last edited by starfry (2012-04-18 10:33:46)

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: UK/London Crystal Palace DVB data post-switchover

Or you could use w_scan [1] and do without an initial scan file altogether. However there are cases where the card/driver will not play well with w_scan and quit working mid scan. 

[1] https://aur.archlinux.org/packages.php?ID=12028

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R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

starfry

Member

From: Surrey, UK

Registered: 2010-08-18

Posts: 238

Re: UK/London Crystal Palace DVB data post-switchover

Yeah, I couldn't get w_scan to work (installed from AUR this morning).

ERROR: Sorry - i couldn't get any working frequency/transponder
 Nothing to scan!!