I have learnt to ignore the myth OSD signal strength. If I add attenuation to my line the % goes up, if I add an amp the % goes down.( inverse to what I would expect) This is on a Leadtek Winfast DTV2000H. 
You could be overdriving the input to your server's cards, a case of more is not always better. Try adding some attenuation to the input on one card and compare to the other one.



> Paul <thannet@gmail.com> wrote:
> 
> Hi Mike, yes so have I sadly.
> 
> Server in the roof, dist amp in the roof about 3 feet from aerial which
> is out side. Amp then splits of to Tv's round the house, two separate
> feeds, new cables, from dist amp to the two Nova-T's in the server, I am
> beginning to wonder if the cards are just plain deaf anyway, have to
> admit I have real problems here with signal strength even on normal TV,
> sadly there is nothing that can be done, it's the location.
> 
> Paul.
> 
> On Sat, 2008-03-08 at 12:29 +0000, Mike Perkins wrote:
> > Paul wrote:
> > > Anyone have any idea how I can confirm the pre amp is working ? 
> Reason I
> > > ask is that I two other DVB tuner based TV's with perfect pictures, 
> and
> > > 100% digital signal. However according to Myth on the Front ends the
> > > strength never goes about about 37 % and I am getting a lot of 
> digital
> > > drop out. Oh forgot to mention I have two Nova-T's in the Myth 
> backend
> > > server. Did have a problem a while back when there was a Kernel 
> update
> > > for Ubuntu Gutsy, and had real problems with the firmware name, it 
> was
> > > supposed to have changed, however mine did not like the new 
> filename,
> > > and I had to manually change the filename of the firmware back to 
> the
> > > old name. Hope that makes sense ? 
> > > 
> > If your TVs are good, and your Myth setup is indifferent (or worse), 
> then the 
> > first thing you have to check is your aerial cabling. Good cable 
> > joints/connectors? Good quality cable? Myth receiver a longer distance 
> away from 
> > the splitter than TVs? How many splitters between aerial and TVs? How 
> many 
> > (more) splitters between aerial and Myth tuners? How recent is the 
> cable from 
> > the aerial to the splitter? Possibility of water in the down cable?
> > 
> > TVs can often get a picture where a tuner card refuses to. You need a 
> good 
> > quality path all the way from bird perch to Myth box.
> > 
> > Been there, done that. <sigh> Had to renew the lot.
> > 
> > Mike Perkins
> 
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