
                          Construction
                          
                            
                              Inner conductor    | 
                              Helical copper tube    | 
                              Φ17.4 mm  | 
                            
                            
                              Dielectric    | 
                              Foam PE    | 
                              Φ43.0 mm   | 
                            
                            
                              Outer conductor    | 
                              Overlapping copper foil   | 
                              Φ43.8 mm   | 
                            
                            
                              Sheath    | 
                              PE/LSOH    | 
                              Φ48.3 mm   | 
                            
                          
                          Electrical & Mechanical Characteristics
                          
                            
                              Impedance    | 
                              50±3 Ohm    | 
                            
                            
                              Nominal capacitance    | 
                              76 pF/m    | 
                            
                            
                              Velocity of propagation    | 
                              88%   | 
                            
                            
                              Insulation resistance    | 
                              >5000 Mohm.Km    | 
                            
                            
                              Inner conductor resistance    | 
                              0.85 Ohm/Km    | 
                            
                            
                              Outer conductor resistance    | 
                              1.0 Ohm/Km    | 
                            
                            
                              Installation temperature range    | 
                              -40°C - +60 °C    | 
                            
                            
                              Operating temperature range    | 
                              -55°C - +85°C    | 
                            
                            
                              Cable weight (approx.)    | 
                              1000kg/km/1150kg/km    | 
                            
                          
                          Attenuation
                          
                            
                              Frequency(MHz)    | 
                              Attenuation (dB/100 m)     | 
                              Attenuation (dB/100 ft)    | 
                            
                            
                              75   | 
                              0.83   | 
                              0.25   | 
                            
                            
                              150   | 
                              0.95   | 
                              0.29   | 
                            
                            
                              450   | 
                              1.9   | 
                              0.58   | 
                            
                            
                              800   | 
                              2.8   | 
                              0.85   | 
                            
                            
                              900   | 
                              3.2   | 
                              0.98   |