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Double shielding – Class A

Conventional coaxial cables Double shielding – Class A


Double-shielded Class A coaxial cable

With 2 shielding layers, these cables provide an outstanding shielding thanks to a high-coverage braid.

They belong in EN 50117 standard Class A, according to their structural properties:

  • For 5 MHz - 30 MHz => TI < 5 mΩ/m
  • For 5 MHz - 1000 MHz => SA > 85 dB
  • For 1000 MHz - 2000 MHz => SA > 75 dB
  • For 2000 MHz - 3000 MHz => SA > 65 dB

Where the transfer impedance (TI) defines how effective the shielding is at low frequencies, while the shielding attenuation (SA) defines it in the 30 MHz-to-3000 MHz range.

Copper / copper

Copper inner and outer conductors

  • The copper inner conductor provides low electric resistance and an excellent response both for low and high frequencies
  • The copper braid has a lower electric resistance and an outstanding shielding efficiency