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Title icon Cables >LMR/ CNT/ FCOM - 300 Cable Home
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LMR/ CNT/ FCOM - 300 Cable line
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Attenuation and Average Power Ratings
 
 
Frequency
MHz
Attenuation
dB /100 ft
Attenuation
dB/100 m
Average Power, kW  
         
30 1.1 3.5 2.10
50 1.4 4.5 1.60
150 2.4 7.8 0.92
220 2.9 9.5 0.76
450 4.2 13.7 0.52
900 6.0 19.7 0.36
1500 7.8 25.7 0.28
1800 8.6 28.4 0.25
2000 9.1 30.0 0.24
2500 10.3 33.9 0.21
       
Standard Conditions :

For Attenuation: VSWR 1.0, ambient temperature 20C (68F).
For Average Power: VSWR 1.0, ambient temperature 40C (104F)
Inner conductor temperature 100C (212F), sea level, dry air, atmospheric pressure, no solar loading

       
 
 
Description
 
Standard Outdoor Cable, Polyethylene Jacket

CNT-300

 
Watertight Cable, Polyethylene Jacket

CNT-300-DB

 
Fire Retardant Cable (CATVR), Non-Halogeneted Jacke

CNT-300-FR

 
Mechanical
 
Minimum Bending Radius, In (mm)
Bending Moment, lb-ft (N•m)
Cable Weight, lb/ft (kg/m)
Tensile Strength, lb (kg)
Flat Plate Crush Strength, lb/in (kg/mm)

0.88 (22.2)
0.38 (0.52)
0.055 (0.08)
120 (54.5)
30 (0.54)
 
Construction Materials
 
Inner Conductor
Dielectric
Outer Conductor
Overall Braid
Solid BC
Foam Polyethylene
Aluminum Tape
Tinned Copper
 
Dimensions
 
Diameter Inner Conductor, in (mm)
Diameter Dielectric, in (mm)
Diameter Outer Conductor, in (mm)
Diameter Overall Braid, in (mm)
Diameter over Jacket, in (mm)
0.070 (1.78)
0.190 (4.83)
0.196 (4.98)
0.225 (5.72)
0.300 (7.62)
 
Environmental
 
Storage Temperature, 0C (0F)
Installation Temperature, 0C (0F)
Operating Temperature, 0C (0F)       
-70 to +85 (-94 to +185)
-40 to +85 (-40 to +185)
-40 to +85 (-40 to +185)
 

Electrical

 
Maximum Frequency, GHz
Velocity, percent  
dc Breakdown, Volts
Peak Power Rating, kW

dc Resistance, ohms/1000 ft (1000m)
    Inner Conductor
    Outer Conductor
Jacket Spark, volts RMS    
Capacitance, pF/ft (m)
Inductance, mH/ft (m)
Shielding Effectiveness, dB
Phase Stability, ppm/0C       
24.5
85
2000
10


2.12 (6.96)
2.21 (7.25)
5000
24.1 (79.10)
0.060 (0.20)
>90
<10
 

Accessories

 
Nylon Cable Ties, Pack of 50 
Standard Weatherproofing Kit
CT-CNT
WK-CNT
 
top
 
  Interface Description Part Number Coupling Nut Inner Contact Attachment Outer Contact Attachment Finish Body/Pin
  N Male Straight 300PNM-H Hex Solder Clamp T /G
  N Male Right Angle 300 PNR-H Hex Solder Clamp T /G
  TNC Male Straight 200 PTM Hex Solder Clamp T /G
               
   
   
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