CUTBACKS AND CONNECTIONS

COM-TECH Rigid Line System is available with different Cutbacks (offset between the outer and inner conductor):

  • FastLine Zero (Flush) Cutback, for convenient and simple installations
  • Recessed (Offset) Cutbacks, for compatibility with NAX/WX and legacy cutbacks

COM-TECH Rigid Line System is available with two different types of connections:

  • FastLine Socket-Plug system for more compact, more efficient, and cheaper connections
  • Traditional Flanged connections for compatibility with EIA systems

MATERIALS

FastLine has been developed with an innovative choice of materials:

  • Inner conductor: Highly Conductive ETP Copper for low losses (as the Insertion Losses depends mainly on the inner conductor)
  • Outer conductor: Highly Conductive Hardened Aluminum, for better mechanical properties (flexibility, and lightness) and cost reduction

The benefits are:

  • Optimal temperature compensation between Outer and Inner conductors: the highest temperature of the inner conductor is compensated by the lower coefficient of expansion of Copper
  • Full galvanic compatibility between metals, as Copper is matched to Copper (or compatible metal, as silver plated copper alloy), whereas Aluminum is connected to Aluminum

POWER RATINGS

Power ratings for COM-TECH Connectors and Rigid Lines:

Type UHF (700 MHz) VHF B.III (230 MHz) VHF B.I (88 MHz) FM (108 MHz)
N 500 W 900 W 1.4 kW 1.3 kW
7-16 2.0 kW 3.5 kW 5.6 kW 5.1 kW
  Rigid Line Components and R.L. Painted Rigid Line Components and R.L. Painted Rigid Line Components and R.L. Painted Rigid Line Components and R.L. Painted
7/8” 2.2 kW 2.7 kW 3.8 kW 4.7 kW 6.1 kW 7.6 kW 5.5 kW 6.9 kW
1+5/8” 5.6 kW 7.0 kW 9.8 kW 12.0 kW 16.0 kW 20.0 kW 14.0 kW 18.0 kW
3+1/8” 20.0 kW 25.0 kW 35.0 kW 44.0 kW 57.0 kW 71.0 kW 52.0 kW 65.0 kW
4+1/16” 28.0 kW 35.0 kW 49.0 kW 61.0 kW 79.0 kW 99.0 kW 71.0 kW 89.0 kW
4+1/2” 30.0 kW 37.0 kW 52.0 kW 65.0 kW 84.0 kW 105.0 kW 76.0 kW 95.0 kW
RL-120 38.0 kW 48.0 kW 66.0 kW 83.0 kW 107.0 kW 134.0 kW 97.0 kW 121.0 kW
6+1/8” 59.0 kW 74.0 kW 104.0 kW 130.0 kW 168.0 kW 210.0 kW 151.0 kW 189.0 kW

Notes

  • Maximum Operating Temperature (Outer Conductor): 70°C (158°F); Recommended: < 65°C (149°F)
  • Power referred to 1.500 m (4.900 ft.). See Altitude Thermal Derating
  • “R.L. Painted”: Painting applied after Rigid Line installation: water-based, matte black, 80°C (176°F) resistant