Data Sheet: GORE® Coaxial Cable - Optimized RG400

United States

Data Sheet for GORE® Optimized RG400 Coaxial Cable; includes description, features, benefits, and technical specifications.


GORE Optimized RG400 Coaxial Cable is designed to be a direct replacement for RG400 cable. Gore’s cable is 60% lighter weight and 30% smaller diameter compared to standard RG400 cable. The cable is suitable for use in commercial and military aircraft and is an ideal choice for aircraft electronics retrofits because it is small, flexible, and easy to route. Typical applications include navigation, communications, box-to-antenna, and in-flight entertainment.

Technical Specifications

GORE Optimized RG400 Coaxial Cable meets the stringent requirements of both EN 4604-003 and FAR25.853. The 50 ohm cable meets and exceeds the electrical requirements of MIL-C-17. Designed for use in aircraft electrical systems, the cable has an operating temperature range of -65°C to +200°C. The maximum operating frequency is greater than 3 GHz and the outer jacket of the cable is UV-laser printable.

A special cable design provides enhanced performance allowing GORE Optimized RG400 Coaxial Cable to have 10% lower attenuation. Environmental protection is achieved with the use of a FEP outer jacket.

GORE Optimized RG400 Coaxial Cable offers significant weight savings. If the GORE™ Cable replaced all of the standard RG400 cable on a typical large cabin business jet, expectations of weight savings is approximately 42 lbs (19kg). When GORE Optimized RG400 Coaxial Cable replaced standard RG400 cable on the Airbus 330/340 in-flight entertainment system, the weight savings was 48 lbs (22 kg) from that one application.

Maximum frequency >3 GHz
Impedance 50 ±2 Ω
Capacitance- max 88 pF/m
Velocity of propagation- min. 75% Co
Transfer impedance- max. 30 mΩ at 1 MHz to 3 GHz
Attenuation at 200 MHz 0.17 dB/m nominal
0.19 dB/m maximum
Attenuation at 400 MHz 0.25 dB/m nominal
0.28 dB/m maximum
Attenuation at 1000 MHz 0.43 dB/m nominal
0.47 dB/m maximum
Attenuation at 3000 MHz 0.80 dB/m nominal
0.90 dB/m maximum
CW power handling- 50 MHz 1100 W
CW power handling- 400 MHz 450 W
CW power handling- 3000 MHz 150 W


Outer diameter- nominal 3.5 mm (0.137 in)
Outer diameter- maximum 3.7 mm (0.146 in)
Weight- nominal 26 g/m or 17 lb/1000 ft
Weight - maximum 30 g/m or 20 lb/1000 ft
Minimum bend radius- static 35 mm (1.38 in)
Minimum bend radius- dynamic 1 100 mm (3.94 in)
Operating temperature -65 °C to +200 °C
Outer jacket color White


Part Number Test Specification
GSC-03-81748-00 Passes European Norm 4604-003
DXN400 Passes Federal Aviation Regulations (USA) 25.853


GORE Optimized RG400 Coaxial Cable is 60% lighter and 30% smaller.

Key Features

  • Lightweight
  • Small size
  • Low attenuation
  • Superior shielding effectiveness
  • Qualified to EN 4604-003 and FAR25.853

Key Benefits

  • Significant weight savings
  • Less space required
  • Increased electrical performance
  • Easy to route

Gore Optimized RG400 vs. Standard RG400

Gore Optimized RG400 vs. Standard RG400

Gore Optimized RG400 Cable Schematic

Gore Optimized RG400 Cable Schematic
Connector Style Part Number Manufacturer
N straight plug R 161 073 020 Radiall
N straight plug 172332 Amphenol
N right angle plug R 161 173 020 Radiall
N bulkhead jack R 161 342 020 Radiall
TNC straight plug R 143 095 020 Radiall
TNC straight plug 122952 Amphenol
TNC right angle plug R 143 182 020 Radiall
TNC bulkhead jack R 143 342 020 Radiall
BNC straight plug R 141 095 020 Radiall
BNC straight plug 112988 Amphenol
BNC right angle plug R 141 195 020 Radiall
BNC bulkhead jack R R 141 325 020 Radiall
SMA straight plug 132374 Amphenol


Contact Gore for other connector options.

GORE and design are trademarks of W. L. Gore & Associates, Inc. ©2006 W. L. Gore & Associates, Inc. 11-2006