50 ohms radiating coaxial cable is mainly used in tunnels, mines, subways, high buildings and highways where there is no direct or good radio wave as signal transmission and transmitting and receiving antennas duplex functions. The cable is characterized with low attenuation, low VSWR, high power capacity, good signal coupling and corrosion resistance.
The cable is manufactured on argon arc welding, corrugating and slotting production line with the most advanced technology by slotting the holes along outer conductor axis. So the evenly-distributed relatively strong radiating signal in the close vicinity of the cable along ts axis make it possible signal transmission, across long distance in uncovered ared. |
|
|
Construction (mm)
|
Item
|
1/2"
|
7/8"
|
1-1/4"
|
1-5/8"
|
| Inner conductor |
Material
|
Copper clad aluminum/
smoothly copper tube
|
smoothly copper tube/
helically corrugated copper tube
|
|
Diameter
|
4.83
|
9.00
|
13.10
|
17.27
|
| Dielectric |
Material
|
Foamed polyethylene
|
|
Diameter
|
12.00
|
22.00
|
32.00
|
42.00
|
| Outer conductor |
Material
|
Annularly corrugated copper tube
|
|
Diameter
|
13.84
|
24.94
|
35.80
|
46.50
|
| Jacket |
Material
|
PE
|
|
Diameter
|
16.40
|
28.80
|
40.70
|
51.20
|
|
| Performance |
|
Item
|
1/2"
|
7/8"
|
1-1/4"
|
1-5/8"
|
| Min.bending radius (mm) [many times] |
250
|
500
|
760
|
1020
|
|
Operating temperatrue (℃)
|
Standard jacket |
－40℃～＋70℃
|
| Halogen-free/Fire-retardant jacket |
－25℃～＋70℃
|
| Construction weight (kg/m） |
Standard jacket |
242
|
595
|
1050
|
1525
|
| Halogen-free/Fire-retardant jacket |
261
|
635
|
1130
|
1615
|
| Flat plate crush resistance (kg/mm2) |
|
|
|
|
| Max.pulling (kg) |
45
|
90
|
150
|
180
|
| DC resistance (Ω/km) |
Inner conductor(CCA) |
1.65
|
1.09
|
0.69
|
0.88
|
| Outer conductor |
2.38
|
1.20
|
0.57
|
0.42
|
| Insulation resistance (MΩ/Km) |
10000
|
| Dielectric strength (DC.V) |
4000
|
6000
|
9000
|
11000
|
| Velocity of propagation (%) |
88
|
88
|
88
|
87
|
| Peak power rating (kw) |
|
|
|
|
| Max.operating frequency (MHZ) |
3000
|
| Characteristic impedance (Ω) |
50±2
|
| V.S.W.R (1M～3GHZ, Max) |
1.2
|
|
| Attenuation(@20℃) db/100m |
|
Frequency
|
1/2"
|
7/8"
|
1-1/4"
|
1-5/8"
|
|
150MHz
|
3.3
|
1.8
|
1.3
|
0.8
|
|
450MHz
|
6.6
|
3.6
|
3.0
|
2.0
|
|
900MHz
|
9.5
|
5.3
|
4.3
|
2.7
|
|
1800MHz
|
13.1
|
7.6
|
5.6
|
4.4
|
|
2400MHz
|
15.7
|
9.2
|
6.9
|
5.6
|
|
| Average power rating(@Ambient 40℃,Inner conductor 100℃) KW |
|
Frequency
|
1/2"
|
7/8"
|
1-1/4"
|
1-5/8"
|
|
150MHz
|
58
|
62
|
64
|
71
|
|
450MHz
|
63
|
72
|
75
|
80
|
|
900MHz
|
68
|
72
|
77
|
79
|
|
1800MHz
|
73
|
84
|
84
|
89
|
|
2400MHz
|
73
|
76
|
76
|
89
|
|
|
|
|
|
|
