
ZTT offers a comprehensive copper leaky cable, capable of producing 1/2″, 7/8 “, 1-1/4”, 1-5/8 “. ZTT has won the single championship for leaky cable and has the first simulation tunnel testing system in China.
Construction of Cable
|
Item |
Diameter(mm) | Material |
| Inner conductor | 17.3 ±0.20 |
Copper tube |
|
Insulation |
43.0±0.30 | Foamed polyethylene |
| Outer copper conductor | 44.0±0.30 |
Overlapping corrugated copper foil |
|
Jacket |
48.0±0.40 |
PE / LSZH flame retardant polyolefin |
Mechanical Characteristics
|
Item |
Unit | Nominal value |
| Min. static bending radius | mm |
500 (Single bend) |
|
Installation temperature |
℃ | -25~+60 ℃ |
| Operation temperature | ℃ |
-20~+85 ℃ |
|
Storage temperature |
℃ | -55~+85 ℃ |
| Recommended clamp spacing | m |
0.8-1.2 |
Electrical Characteristics
| Item | Specification |
| Characteristics impedance | 50±2Ω |
| Capacitance | 75.0(pF/m) |
| Velocity | 89% |
| Min. insulation resistance | 5000 MΩ·km |
| Operation frequency | 800~1000MHz, 1700~2700MHz |
| Optimum operating Frequency Band | 700-2700MHz |
| Stop bands | 1100-1200MHz&2200-2300MHz |
| Dielectric strength | 15000V( DC,1 min.) |
| Jacket spark test voltage | 10000V(AC) |
| VSWR | 1.30@75-150MHz |
| 1.30@450-500MHz | |
| 1.30@800-960MHz | |
| 1.30@1700-2025MHz | |
| 1.30@2110-2170MHz | |
| 1.30@2300-2700MHz |
Note: The tolerance of VSWR shall be ±3%.
Attenuation
|
Frequency(MHz) |
Attenuation(dB/100m) | Coupling loss
(50%/95%,2m) |
| 75 | 0.63 |
70/79 |
|
100 |
0.84 | 70/81 |
| 150 | 0.94 |
78/90 |
|
450 |
1.50 | 81/90 |
| 500 | 1.60 |
82/90 |
|
700 |
1.95 | 74/77 |
| 800 | 2.16 |
70/74 |
|
900 |
2.37 | 69/73 |
| 1800 | 3.70 |
64/67 |
|
2000 |
4.22 | 63/66 |
| 2100 | 4.50 |
62/65 |
|
2400 |
5.15 | 61/65 |
| 2700 | 6.20 |
63/66 |
Note: The tolerance of Attenuation shall be ±10%.The tolerance of Coupling loss shall be ±5dB.
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