[mythtv-users] Missing channels from Astra 28.2E
Another Sillyname
anothersname at googlemail.com
Tue May 11 16:51:02 UTC 2010
On 11 May 2010 17:10, Chris Dennis <cgdennis at btinternet.com> wrote:
> Terjesen Jens Peder wrote:
>>
>> Chris Dennis wrote:
>> ________________________________________
>> Hello MythTV people
>>
>> This is a problem which I've had for a year or more, but I haven't had
>> time until now to investigate it fully.
>>
>> Basically, my list of channels is incomplete, whether I use MythTV's
>> scanning, or DVB-utils' 'scan' command.
>>
>> I'm using a Hauppauge Nova-S-Plus card, which shows up in lspci as:
>> 00:08.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3
>> PCI Video and Audio Decoder [MPEG Port] (rev 05)
>>
>> The output of this command
>>
>> scan -a 0 -x -1 -t 7 -U -o zap -l UNIVERSAL ./Astra-28.2E
>>
>> when ./Astra-28.2E contains this
>>
>> S 10773000 H 22000000 5/6
>>
>> is this (heavily edited)
>>
>> scanning ./Astra-28.2E
>> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>> initial transponder 10773000 H 22000000 5
>> >>> tune to: 10773:h:0:22000
>> DVB-S IF freq is 1023000
>> 0x0000 0x18af: pmt_pid 0x0000 BSkyB -- BBC THREE (not running)
>> 0x0000 0x18bb: pmt_pid 0x0101 BSkyB -- BBC 1 NI (running)
>> 0x0000 0x18bf: pmt_pid 0x010b BSkyB -- FIVE (running)
>> 0x0000 0x189d: pmt_pid 0x0100 BSkyB -- BBC 1 London (running)
>> 0x0000 0x189e: pmt_pid 0x0102 BSkyB -- BBC 2 England (running)
>> 0x0000 0x18a2: pmt_pid 0x0104 BSkyB -- ETV (running)
>> 0x0000 0x18a5: pmt_pid 0x0000 BSkyB -- BBC TES 2 (not running)
>> 0x0000 0x18ab: pmt_pid 0x0103 BSkyB -- BBC TES 3 (running)
>> 0x0000 0x18ac: pmt_pid 0x0000 BSkyB -- BBC FOUR (not running)
>> 0x0000 0x18ad: pmt_pid 0x0106 BSkyB -- CBBC Channel (running)
>> 0x0000 0x18ae: pmt_pid 0x0105 BSkyB -- CBeebies (running)
>> Network Name 'ASTRA'
>> ... [lots of lines snipped]
>> >>> tune to: 11953:h:0:27500 (tuning failed)
>> DVB-S IF freq is 1353500
>> WARNING: >>> tuning failed!!!
>> ... [lots more lines snipped]
>>
>> In other words, it finds some channels and not others. Specifically,
>> the information on pages such as
>> http://www.lyngsat.com/astra2b.html
>> and
>> http://www.digital-kaos.co.uk/forums/f39/bbc-1-2-missing-40088/
>> suggests that BBC Radio 4 (and others) should be available on
>> 11953:h:027500, but I've never been able to get it.
>>
>> I can get other radio stations, such as BBC R5L on 10802:h:0:22000.
>>
>> Has anyone else experienced this?
>>
>> Is it likely to be the fault of the tuner card, or the LNB, or the
>> direction the dish is pointing in?
>>
>> cheers
>>
>> Chris
>> --
>> Chris Dennis cgdennis at btinternet.com
>> Fordingbridge, Hampshire, UK
>> _______________________________________________
>>
>> Hi.
>>
>> I guess you are using an universal LNB?
>>
>> It looks like you are only getting the low-band channels?
>> >>> tune to: 10773:h:0:22000
>> DVB-S IF freq is 1023000
>> I.e. 10733 Mhz - 9750 Mhz = 1023 Mhz -> OK
>> >>> tune to: 11953:h:0:27500 (tuning failed)
>> DVB-S IF freq is 1353500
>> I.e. 11953 Mhz - 10600 Mhz = 1353 Mhz -> NOK.
>>
>> It that is the case it would mean that the tone-switching on your card is
>> broken.
>>
>> I bought a Hauppauge Nova-S-Plus a few years ago that functioned as it
>> should for a few months, then the tone-switching stopped working.
>>
>> Fortunatly for me the webshop replaced it with a Hauppauge HVR-4000 at no
>> extra charge.
>>
>> Jens
>
> Aha! That's an interesting thought. I was wondering why the -tone option
> of dvbtune made no difference.
>
> In fact I've got two Nova-S-Plus cards in the backend -- maybe both of them
> have failed in this way. I'll try them one at a time at the weekend.
> They're a couple of years old, so not within warranty.
>
> Which are good DVB-S PCI cards these days?
>
> cheers
>
> Chris
> --
> Chris Dennis cgdennis at btinternet.com
> Fordingbridge, Hampshire, UK
> _______________________________________________
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> mythtv-users at mythtv.org
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>
I use the Hauppauge DVB-S2 so that if the HD channels start to
transmit on S2 as is rumoured I don't need to replace the card again.
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