Fcom Technology A Unit of Frontier Trading Company  
  Heliax Cables
LMR Series Cables
 
   
Connecting People, Through Technology


Ground Plane Antennas
 
LMR 400-75  
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LMR 400-75
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Mechanical Specifications
 
Minimum Bend Radius 1.0 in 25.4 mm
Weight 0.09 lb/ft 0.137 kG/m
 
Construction Specifications
Part Designation Material Inches mm
       
Inner Conductor Solid Bare Copper 0.065 1.65
Dielectric Foam Polythylene 0.285 7.24
Outer Conductor Aluminum Tape 0.291 7.39
Overall Braid Tinned Copper 0.320 8.13
Standard Jacket Black Polyethylene 0.405 10.30
 
Electrical Specifications
Characteristic English Units Metric Units
   
Impedance 75 Ohms 75 Ohms
Capacitance 15.9pF/ft 52.2 pF/m
Velocity of Propagation 85% 85%
Attenuatino @ 30 MHz 0.6 dB/100 ft 2.0 dB/100 m
  50 MHz 0.8 dB/100 ft 2.6 dB/100 m
  150 MHz 1.4 dB/100 ft 4.9 dB/100 m
  220 MHz 1.8 dB/100 ft 5.9 dB/100 m
  450 MHz 2.6 dB/100 ft 8.5 dB/100 m
  900 MHz 3.7 dB/100 ft 12.1 dB/100 m
  1500 MHz 4.9 dB/100 ft 16.0 dB/100 m
  2000 MHz 5.7 dB/100 ft 18.7 dB/100 m
  2500 MHz 6.5 dB/100 ft 21.3 dB/100 m
       
       
  30 MHz 1.3dB/100 ft 4.30 dB/100 m
* Consult factory for applications over 6GHz
 
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Standard conditions: For attenuation. VSWR 1.0, ambient temperature 20’C (68’F) For Average power. VSWR 1.0 ambient temperature 40’C (104’F) Inner conductor temperature 100’C(212’F), no solar loading
     
Cables : RF Coaxial & Microwaves Cables : Heliax Cable : LDF 1-50 Cable: LDF 2-50 Cable : LDF 4-50 Cable:
LDF 4-5.50 Cable: LDF 5-50A Cable: VXL 5-50A Cable : FSJ Series Cables: FSJ 1-50A Cable: FSJ 2-50A Cable: FSJ 4-50B Cable:
LMR Series Cables LMR - 100A Cable: LMR - 195 Cable: LMR 200 Cable: LMR 240 Cable:
LMR 240-75 Cable : LMR 400A Cable: LMR 400-75 Cable: LMR 500 Cable: LMR 600 Cable: LMR 900 Cable: LMR 1200 Cable:
LMR 1700 Cable
     


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