[linux-dvb] twinhan 1025 sat-express

stonewall at inebraska.com stonewall at inebraska.com
Thu Jul 21 19:00:54 CEST 2005

Marc - did you try to use "h" on your polarity?  Most modern LNB/LNAs require 
a min of 15VDC to kick in, and your 12VDC may not be enough.  Thus your line 
power makes things work, and your card doesn't.

For instance, in an szap config, "v" just powers it at 12VDC or 13VDC, and "h" 
for polarity kicks it to 18VDC.  Configuring with an "h" will generate a lot 
more heat at the tuner . . . but if it's what is required, you simply need to 
make sure you are getting plenty of vent throughout your computer.


On Thursday 21 July 2005 16:56, Marc Dirix wrote:
> > The sat-express cards have _very_ bad tuners. I had two of those cards
> > and sold both again, because they couldn't get a lock most of the times
> > due to low signal. The driver works.
> Trying 2.6.12 later on, but isn't it possible my tuner is broken?
> If I don't use a receiver in between te line, I don't get any signal at
> all. As if the 12V power supply was broken or something.
> If I hookup the receiver, and turn it on, signal is ok, and the card can
> lock.
> /Marc
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