Your TV is more than 20 meters from your decoder?
20 meter is the maximum length for a HDMI cable.
However this extender will allow you to have 60 meters between your TV and your decoder.
You just have to run the required length of CAT6 UTP cable.
Supports HDMI 1.2 1.3b and 1.4, supports 3D, supports high resolution 1080P@60HZ.
Supports 225MHZ/2.25GBPS per channel(6.75GBPS all channel) bandwidth.
Supports 12bit per channel(36bit all channel)deep color.
HDCP pass through, uncompressed audio such as LPCM.
Compressed audio such as DTS digital.Dolby digital(including DTS-HD and Dolby True HD.