High quality, triple-shielded coaxial cable with inner conductor made of copper wire. The conductor is covered with physically foamed nitrogen (N) polyethylene, which has particularly effective dielectric insulation. Shielding is made in accordance with the Trishield standard, which uses triple conductor protector. The first of them is a layer of AL/PET aluminium foil, second one is aluminium wire braiding with optical coverage 98% and the last one is another layer of AL/PET aluminium foil. The outer sheath is made of black polyethylene (PE), which protects against mechanical damage and external atmospheric conditions. NS113TRI HQ cable has a high shielding efficiency, confirmed by class A/A+.