Chinese English
Wireless HDMI/SDI
Video Wall Controller
HDBaseT Extender
HDBaseT Matrix
HDBaseT Splitter
HDMI Extender
HDMI Wallplate Extender
HDMI Extender Over IP
HDMI Extender Over Fiber
HDMI Matrix
HDMI Splitter
HDMI Switch
HDMI Converter
DVI Splitter
SDI Splitter/Repeater
SDI Converter
DVI Extender
SDI Extender Over Fiber
VGA Extender
KVM Extender
R&D Capability
OEM/ODM service
Home - Support
How to choose the shielding material of HDMI cable?
Date:2013-4-17 23:55:59
Electromagnetic shielding of HDMI cable is used to enclose the electromagnetic susceptible circuit with metal shielding material to reduce internal electromagnetic field strength below the permitted value. The outermost layer is metal weaving net, of which the shielding performance is relying on the density and material. The higher the density is, the better it shields. Theoretically, the shielding ratio is 85%-90% (so called 100% and above is purely fiction). HDMI cable of good quality usually uses tinned copper wire as the metal material. The second and third aluminum foil shielding layer is spirally winded. Related with the purity, thickness and overlapping, the overlapping rate of aluminum foil in good HDMI cable shall be more than 30%.

Tel:+86 755 8351 5526   Fax:+86 755 8351 3509