Coaxial Cables > TELESCOPE CABLES
500 Series Cable Construction & Dimensions
|
| Component |
Standro |
Trishield |
QuadShield |
| Diameter of Inner conductor (mm) |
2.77 ± 0.03 |
2.77 ± 0.03 |
2.77 ± 0.03 |
| Diameter of Dielectric (mm) |
11.5 ± 0.30 |
11.5 ± 0.30 |
11.5 ± 0.30 |
| Diameter of 1st outer conductor <= (mm) |
11.90 |
12.80 |
12.80 |
| Thickness >= |
/ |
0.64 |
0.35 |
| Diameter of 2nd outer conductor <= (mm) |
12.20 |
/ |
/ |
| Diameter of Jackets <= (mm) |
15.00 |
15.40 |
15.20 |
| Approximate Weight (Kg / Km) |
120(170) |
174 |
144 |
| Diameter of messenger steel wire (mm) |
2.77 |
2.77 |
2.77 |
| Steel wire weight (Kg / Km) |
47 |
47 |
47 |
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Note :
- Material of 1st out conductor is bonded foil, non-bonded foil, Thickness of extruding Aluminium tube is 0.64mm.
- Thickness of welding Aluminium tube is 0.35mm.
- Coverage of 2nd outer conductor is 40%, 50%, 60%. We can provide special demand for client.
|
500 Attenuation
| Frequence(Mhz) |
Max Value (dB/100m) |
| 5 |
0.60 |
| 50 |
1.90 |
| 55 |
2.05 |
| 200 |
3.90 |
| 211 |
4.03 |
| 300 |
4.80 |
| 400 |
5.60 |
| 450 |
5.90 |
| 550 |
6.70 |
| 600 |
7.06 |
| 750 |
7.90 |
| 800 |
8.32 |
| 860 |
8.46 |
| 1000 |
9.20 |
| 1350 |
10.90 |
| 1750 |
12.41 |
| 2150 |
13.26 |
|
|
500 Electrical Performance
| DC Resistance of Inner Conductor (ohms/km) |
4.6 CCA 2.9BC |
| DC Resistance of Outer Conductor (ohms/km) |
19 AL 12TC |
| Impedance (ohms) |
75±2.0 |
| Capacitance(pF/m) |
50±3.0 |
| Wave velocity rate% |
86% |
| Return Loss (>=db) |
VHF 5-300 MHz >= |
20dB |
| UHF 300-960 MHz >= |
18dB |
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