[linux-dvb] TT-1500 / TDA10046

Nicholas Fearnley nfearnley at dmpip.tv
Wed Feb 21 15:40:03 CET 2007


In the UK I'm pretty sure its QAM 16 / 3_4 for 4 multiplexes, and QAM  
64 2_3 for two others, but I will triple check just in case.

I normally use AUTO params but I have been told previously on this  
topic that the TT cards need the params and don't handle auto.

I will try though and see.

Thanks

On 21 Feb 2007, at 13:39, Nico Sabbi wrote:

> Chris Malarky wrote:
>
>> Hi Nick,
>>
>> On Tue, 2007-02-20 at 23:37 +0000, Nicholas Fearnley wrote:
>>
>>> I have had real problems getting the TT-1500 (DVB-T) working.
>>>
>>> I have been using dvbtune for some diagnostics.
>>>
>>> The following should yield BBC Multiplex on my local transmitter
>>>
>>> dvbtune -c 0 -qam 16 -gi 32 -cr 3_4 -bw 8 -tm 2 -f 722000
>>>
>
> 16? are you sure?
> wiith tuners like yours specifying the correct parameters is
> even more important than usual. If in doubt use -auto, instead.
>
>>> It does not, I tried adding 166Khz (722166) but no luck.  So I  
>>> tried  just working my way through some frequencies.  I can get  
>>> the  FE_STATUS to report FE_HAS_SIGNAL on some frequencies.  I  
>>> even get  FE_HAS_CARRIER on occasion but never any more than that.
>>>
>>
>> Sorry, I haven't had the time to chase this one up, but I haven't  
>> had a
>> peep out of my T-1500 since I tried using dvbtune instead of the
>> dvb-apps tools.
>>
>> I had no luck at all with dvbtune, and now I can't get a picture  
>> out of
>> it.
>>
>> The behaviour is very strange - doing all the things that used to  
>> work
>> perfectly - scan gives me all the channels I would expect, tzap  
>> gets a
>> lock, and dvbtraffic is reporting a plausible amount of data.  But  
>> when
>> I try and capture the output with dvbstream I get nothing.
>>
>> I suspect that I am doing something Very Stupid, so will probably  
>> rip it
>> all apart and try again :-/
>>
>> Cheers,
>> Chris
>>
>
> maybe it won't change anything, but try a fresh cvs checkout of  
> dvbtune/stream
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