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LMR 900 line
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LMR 900 line
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Frequency
MHz
Attenuation
dB /100 ft
Attenuation
dB/100 m
Average Power, kW  
         
30 MHz 0.29 0.9 8.9
50 MHz 0.37 1.2 6.9
150 MHz 0.66 2.2 3.9
220 MHz 0.80 2.6 3.2
450 MHz 1.17 3.8 2.2
900 MHz 1.70 5.6 1.5
1500 MHz 2.24 7.4 1.1
1800 MHz 2.48 8.2 1.0
2000 MHz 2.63 8.6 1.0
2500 MHz 2.98 9.8 0.9
5800 MHz 4.90 16.0 0.52
 
 
 
Mechanical Specifications
 
Minimum Bend Radius 3.0 in 76.2 mm
Bending Moment 9 ft-lb 12.20 N-m
Weight 0.266 lb/ft 0.40 kG/m
Tensile Strength 750 lb 340.5 kG
Flat Plate Crush 100 lb/in 1.79 kG/mm
 
Construction Specifications
Part Designation Material Inches mm
       
Inner Conductor BC Tube 0.262 6.65
Dielectric Foam Polythylene 0.680 17.27
Outer Conductor Aluminum Tape 0.686 17.42
Overall Braid Tinned Copper 0.732 18.59
Standard Jacket Black Polyethylene 0.870 22.10
 
Electrical Specifications
 
Cutoff Frequencey 6.9 GHz
Velocity of Propagation 87%
Voltage Withstand 5000VDC
Peak Power 62 kW
DC Resistance  
Inner Conductor,ohms 0.54/1000' 1.77/km
Outer Conductor,ohms 0.55/1000' 1.80/km
Jacket Spark 8000VRMS
Impedance 50ohms
Capacitance 23.4pF/ft 76.8pF/m
Inductance 0.058uH/ft 0.19uH/m
Shielding Effectiveness >90dB  
Phase Stability <10ppm/C  
* Consult factory for applications over 6GHz
 
    LMR 900
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
   
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Keywords Heliax Cable, LDF Cable, Collinear Antenna , Yagi Antenna , Seling Antenna , XLR Connectors , RF Coaxial Connectors Links | Design Credits : adesigncafe.com