[linux-dvb] Re: scan file for uk-CrystalPalace

Christoph Pfister christophpfister at gmail.com
Fri Apr 27 15:52:10 CEST 2007


Hi,

Am Sonntag, 15. April 2007 13:53 schrieb Stephan Bourgeois:
> Christoph Pfister wrote:
> > Hi,
> >
> > "Some" time ago you had a proposal for an updated uk-CrystalPalace
> > tuning file. However it doesn't seem clear to me which values are
> > correct.
> >
> > Can you please give me advice how to deal properly with that file?
>
> The reason why I proposed the new file was that:
> 1. with a Freecom DVB-T USB stick, the original file simply didn't work.
> It was tuned to a channel used for HDTV test transmissions. At the time
> (December 2006) that channel was sometimes off the air.
> 2. with a file listing a single frequency, the tuning takes so much longer.
> 3. I got a reply that the file I was proposing was "incorrect" and that
> the previous file was using "offsets". Please ask the group what is
> "incorrect" about my file.
>
> The latest version of the file I am using is the following:
>
> # Crystal Palace - last update 06 Dec 2006
> # details can be found on:
> # http://www.ukfree.tv/txdetail.php?a=TQ339712
> # T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
> T 506000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #Mux1, Ch25
> T 482000000 8MHz 2/3 NONE QAM64 2k 1/32 NONE  #Mux2, Ch22
> T 562000000 8MHz 2/3 NONE QAM64 2k 1/32 NONE  #MuxA, Ch32
> T 530000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxB, Ch28
> T 578000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxC, Ch34
> T 538000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxD, Ch29
>
> This file is missing the current BBC HDTV and ITV HDTV test
> transmissions, and will probably need to be updated at the digital
> switchover sometime in 2012.
> I hope this helps,
> Yours, Stephan.

Okay - applying a corected version (according to 
http://www.ofcom.org.uk/static/reception_advice/digital_trans_guide/show_transmitter.asp-siteID=66.html).

Christoph
-------------- next part --------------
# Crystal Palace - last update 06 Dec 2006
# details can be found on:
# http://www.ukfree.tv/txdetail.php?a=TQ339712
# http://www.ofcom.org.uk/static/reception_advice/digital_trans_guide/show_transmitter.asp-siteID=66.html
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 505833000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #Mux1, Ch25
T 481833000 8MHz 2/3 NONE QAM64 2k 1/32 NONE  #Mux2, Ch22
T 561833000 8MHz 2/3 NONE QAM64 2k 1/32 NONE  #MuxA, Ch32
T 529833000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxB, Ch28
T 578167000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxC, Ch34
T 537833000 8MHz 3/4 NONE QAM16 2k 1/32 NONE  #MuxD, Ch29


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