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TechnoTrend S2-3200 CAM / CI

linux-dvb manu 1 participant 1 message May 26, 2008 1 message not in the archive Media (V4L/DVB)

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manu

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Quoted 30 lines · Jelle De Loecker

manu schreef:

Quoted 4 lines · Jelle De Loecker
Quoted 3 lines

All I want to know is: is it as simple as inserting the CAM in my Technotrend's CI? Will the hardware do everything, or does

Multiproto

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and VDR have some work, too?

I have a Canalsat (in the caribbean) subscription and, with MythTV

at

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least I just had to plug in the cam, put the subscription card in

it

Quoted 7 lines

and voila!
The TV application must "talk" to the cam; also there are some cams which are known not to work well/reliably with the TT CI. For my part I am more than happy with my aston crypt CAM which can decrypt two streams simultanueously, which means you can watch 2 channels (on different PC or using PIP) or record two, or watch one record one, just one restriction though: they have to be on the

same

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transponder.

I believe TV Vlaanderen uses SECA - Any problems with that one?

Oh, talking about multiple streams, what exactly describes a transponder? For example, when I use dvbstream to tunnel a DVB signal into VLC I can select a few other channels (6-7, on some BBC streams even 7-8 or more) from the "navigation" menu, is this the content of a

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transponder? (Because that would mean there are on average about 6-7 channels on one transponder)
Or is it actually more?

Well I am no expert but the channels are dispatched on several transponders, how many depend on the bandwidth needed by each channel (I mean you can put more SD channels than HD channels). A dvb card receives the whole stream of one transponder and can, depending on hardware including the CAM if there is encryption, decode all channels. This is when you have only one tuner; indeed one tuner can tune on only one frequency, that is only one transponder. So if you want to be able to watch/record several channels without restriction, you need several cards.

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Btw, what MythTV revision were you using again? (I badly want to get MythTV to work!)

I have been using the 0.21-fixes branch since a while. I know that it is not easy to compile it with the latest multiproto, hence mine is 2 months old I think. One more trick: I hacked the code to add 4MHz to the tuning frequency to be able to get good locks (this is not because of mythtv, scan/szap need that also).

HTH
Bye
Manu

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