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LMR-300

LMR-300

Flexible Low Loss Communications Coax
Ideal for…

• Jumper Assemblies in Wireless Communications Systems
• Short Antenna Feeder runs
• Any application (e.g. WLL, GPS, LMR, WLAN, WISP, WiMax,
SCADA, Mobile Antennas) requiring an easily routed, low loss RF cable

Part Description Stock
Part Number Application Jacket Color Code
LMR-300 Outdoor PE Black 54086
LMR-300-DB Outdoor/Watertight PE Black 54114
LMR-300-FR Indoor/Outdoor Riser CMR FRPE Black 54087
LMR-300-FR-PVC Indoor/Outdoor Riser CMR FRPVC Black 54108
LMR-300-PVC General Purpose PVC Black 54217
LMR-300-PVC-W General Purpose PVC White 54203
Environmental Specifications
Performance Property oF oC
Installation Temperature Range -40/+185 -40/+85
Storage Temperature Range -94/+185 -70/+85
Operating Temperature Range -40/+185 -40/+85

 

Construction Specifications
Description Material In. (mm)
Inner Conductor Solid BC 0.070 (1.78)
Dielectric Foam PE 0.190 (4.83)
Outer Conductor Aluminum Tape 0.196 (4.98)
Overall Braid Tinned Copper 0.225 (5.72)
Jacket (see table) 0.300 (7.62)
Electrical Specifications
Performance Property Units US   (metric)
Velocity of Propagation % 82    
Dielectric Constant NA 1.38    
Time Delay nS/ft (nS/m) 1.20   (3.92)
Impedance ohms 50    
Capacitance pF/ft (pF/m) 23.9   (78.4)
Inductance uH/ft (uH/m) 0.060   (0.20)
Shielding Effectiveness dB >90    
DC Resistance        
Inner Conductor ohms/1000ft (/km) 2.12   (7.0)
Outer Conductor ohms/1000ft (/km) 2.21   (7.3)
Voltage Withstand Volts DC   2000  
Jacket Spark Volts RMS   5000  
Peak Power kW   10  

 

Attenuation vs. Frequency (typical)
Frequency (MHz) 30 50 150 220 450 900 1500 1800 2000 2500 5800 8000
Attenuaton dB/100 ft 1.1 1.4 2.4 2.9 4.2 6.1 7.9 8.7 9.2 10.4 16.5 19.8
Attenuaton dB/100 m 3.5 4.5 7.9 9.6 13.8 19.9 26.0 28.7 30.3 34.2 54.2 65.0
Avg. Power kW 2.09 1.62 0.92 0.76 0.52 0.36 0.28 0.25 0.24 0.21 0.13 0.11