Appendix
LD900 Installation and Oper ations M anual
83
8.2 Summary Specification of Cabling
VERIPOS typically provide with the system pre-terminated cables and tails for use with both L-band and GNSS
antennas (see the
Delivery note
). VERIPOS recommend the use of Times Microwave coaxial LMR cable for
installation of all antennas.
8.2.1 Times LMR 400 Coaxial cable
8.2.1.1
Electrical Specifications
Performance Property
Units
US
(metric)
Attenuation @1.5GHz:
30.77m (100f t.)
5.1dB
100m
16.8dB
Velocity of propagation
%
85
Dielectric constant
N/A
1.38
Time delay
nS/f t (nS/m)
1.20
(3.92)
Impedance
50
Capacitance
pF/f t (pF/m)
23.9
(78.4)
Inductance
uH/f t (uH/m)
0.060
(0.20)
Shielding effectiveness
dB
>90
DC resistance
Inner conductor
Outer conductor
/1000 f t (/km)
/1000 f t (/km)
1.39
1.65
(4.6) (5.4)
Voltage withstand
VDC
2500
Jacket spark
Vrms
8000
Peak power
kW
16
8.2.1.2
Mechanical Specifications
Performance Property
Units
US
(metric)
Bend radius, installation
in. (mm)
1.00
(25.4)
Bend radius repeated
in. (mm)
4.0
(101.6)
Bending moment
f t-lb (N-m)
0.5
(0.68)
Weight
lb/f t (kg/m)
0.068
(0.10)
Tensile strength
lb (kg)
160
(72.6)
Flat plate crush
lb/in. (kg/mm)
40
(0.71)
8.2.1.3
Environmental Specifications
Performance Property
°F
°C
Installation temperature range
-40 to +185
-40 to +85
Storage temperature range
-94 to +185
-70 to +85
Operating temperature range
-40 to +185
-40 to +85
