DVB-T Interference from Graphics Card

[NumberFive]

Hi,

Can anyone advise. Since I installed a new graphics card, I am getting interference on one of my DVB-T multiplexes. It is Mux 2 that I lose ( C33- 569.8MHz ).

- My graphics card is an ASUS ATI HD 5450.
- My DVB-T card is a Hauppauge Nova-T-500 PCI (new model, solid state tuners).

The TV tuner actually sits at 90 degrees to the graphics card due to the orientation of the PC case (it's a Dell). It works fine if the lid of the case is off, but as soon as the lid goes on the DVB-T signal breaks up.

My solution to continued reception is to put a 23dB amp on the input of the DVB-T card and add a sheet of tin foil to the back of the graphics card to give it a ground plane.

Anyone have any better ideas?

Thanks

[DanielP]

Might the problem not be heat and ventilation of the DVB-T card in the small form factor Dell case?

Daniel

[pBS]

it also may be the card is hitting or getting very near the metal lid, causing interference...
ground plane may be only solution...make sure card is grounded well at screw/rail...