[mythtv-users] DVB-S2 PCI-express cards

Emmanuel eallaud at gmail.com
Fri Sep 30 13:03:44 UTC 2011

On 28/09/2011 07:26, James Courtier-Dutton wrote:
> Hi,
> In addition to the great feedback I have seen so far, I can only find
> one manufacturer that explicitly states in their datasheet the
> sensitivity of the tuner.
> The problem with some sat setups, is that the cable form the dish to
> the receiver might be long.
> The longer the cable gets, the more attenuation it gets. There is also
> more attenuation during weather storms.
> So, more sensitive tuners will work with longer cables and better in
> bad weather.
> I could only find the specification on TBS DVB cards.
> For example, the TBS 6980/6981,6920 has  "Input level: -65~-25dBm ",
> but a newer TBS 6984,6921,6922 has "Input Level: -69~23dBm".
> So, the newer cards might work better with longer cables and bad weather.
> Has anyone found this sensitivity information for Hauppauge, Octopus,
> Mystique SaTiX, or TeVii cards?
I can confirm that TBS 6921 is very sensitive and only real bad weather 
can break the reception (but my cable is rather short).
But I thought they would release the source code for the frontend blob, 
but this has yet to happen.

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