QR 540 Coaxial Cables

u-1 pro-6

Construction Specification
 Standard 320 412 500 540
  (series) (series) (series) (series)
 Inner Conductor (mm) 1.80 2.26 2.78 3.15
Dielectric (mm) 7.45 9.30 11.50 13.03
Outer Conductor (mm) 8.12 10.50 12.70 13.72
Outer Sheath (mm) 10.03 12.50 14.70 15.30

Electrical Characteristics
 Impedance 75+/-2 ohms
 Nominal Capacitance 50 pF/m 15.2pF/ft
 Nominal Velocity of Propagation 88%
 Screen Efficiency at 5 Mhz 135Db min
 Dielectric Strength Dielectric 2.5Kv
Outer Shrath 5kV

Attenuation
Standard 320 series 412 series 500 series 540 series
f(MHz) Max. dB/100m Max. dB/100m Max.dB/100m Max. dB/100m
50 2.67 2.13 1.69 1.44
100 3.84 3.04 2.42 2.09
200 5.48 4.36 3.48 3.04
300 6.69 5.39 4.32 3.71
400 7.8 6.28 5.04 4.33
450 8.27 6.69 5.37 4.59
500 8.72 7.07 5.69 4.89
550 9.34 7.44 5.99 5.12
600 9.78 7.80 6.28 5.38
650 10.18 8.15 6.56 5.65
750 10.86 8.80 7.10 6.07
850 11.77 9.42 7.61 6.51
1000 12.76 10.30 8.34 7.12