Appendix B: 75-Ohm CATV Cable
Page 24
InterReach Spectrum Remote Access Unit Installation Guide
©
2012
TE
Connectivity
Ltd
TECP-77-222 • Issue
1 • August
2012
Overall
Nominal
Electrical
Characteristics
Characteristic
Impedance
75.000
Inductance
0.091
H/ft.
Capacitance
Conductor
to
Shield
16.300
(pF/ft.)
Velocity
of
Propagation
83
(%)
Delay
1.220
(ns/ft.)
Conductor
DC
Resistance
2.500
@
20°C
(
/1000
ft.)
Outer
Shield
DC
Resistance
1.600
@
20°C
(
/1000
ft.)
Attenuation
Freq. (MHz) Attenuation (dB/100 ft.)
1.000
0.150
3.580
0.260
5.000
0.300
7.000
0.340
10.000
0.400
67.500
1.200
71.500
1.240
88.500
1.400
100.000
1.500
135.000
1.780
143.000
1.840
180.000
2.090
270.000
2.600
360.000
3.100
540.000
3.890
720.000
4.570
750.000
4.680
1000.000
5.500
1500.000
6.910
2000.000
8.130
2250.000
9.200
3000.000
10.200