User's Manual

Appendix B: 75-Ohm CATV Cable
Page 18 InterReach Spectrum Remote Access Unit Installation Guide
©
2011 ADC Telecommunications, Inc ADCP-77-168 • Issue 2 • 07/2011
Overall Nominal Electrical Characteristics
Characteristic Impedance 75.000
Inductance 0.103 H/ft.
Capacitance Conductor to Shield 16.100 (pF/ft.)
Velocity of Propagation 82 (%)
Delay 1.240 (ns/ft.)
Conductor DC Resistance 6.400 @ 20°C (/1000 ft.)
Outer Shield DC Resistance 2.800 @ 20°C (/1000 ft.)
Attenuation
Freq. (MHz) Attenuation (dB/100 ft.)
1.000 0.240
3.580 0.450
5.000 0.550
7.000 0.650
10.000 0.750
67.500 1.740
71.500 1.780
88.500 1.940
100.000 2.100
135.000 2.400
143.000 2.500
180.000 2.800
270.000 3.400
360.000 4.000
540.000 5.200
720.000 6.100
750.000 6.200
1000.000 7.300
1500.000 9.200
2000.000 10.900
2250.000 11.600
3000.000 13.700