Low Loss Coaxial Cable
Application
Wireless transmission included mobile phone systems and microwave communication systems.
The transmission media must be low transmission loss and high efficiency. The cable laid at radio base station to connect central office to antenna for radio transmission. The cable also installs at the places in which radio signal can not reach, such as tunnel, railway station or basement with antenna for auxiliary communication.
Construction
Low Loss Coaxial Cable
1Inner conductor-Corrugated Copper tube /Copper tube/Copper Clad Aluminum wire
2Dielectric –Foam Polyethylene
3Outer Conductor-Corrugated Copper tube
4Sheath- Polyethylene or Low Smoke Free Halogen compound
Property
- Low transmission loss
- Low reflection loss
- Characteristic impedance is 50 ohm
- Outer Conductor which uses corrugated Copper tube makes the cable flexible.
- Light weight , easy to delivery and installation
- With low smoke, halogen free and flame retardant performance
Specification
Construction
1/2”,7/8”,1-1/4”,1-5/8” as following
| Item | CTLLCX 1/2" CFC-(FR) |
CTLLCX 7/8" CFC-(FR) |
CTLLCX 1-1/4" CFC-(FR) |
CTLLCX 1-5/8" CFC-(FR) |
|
|---|---|---|---|---|---|
| Inner conductor | Material | Copper Clad Aluminum wire | Copper tube | Copper tube | Corrugated Copper tube |
| Dia(mm) | 4.9 | 9.1 | 13.2 | 17.3 | |
| Dielectric | Material | Foam Polyethylene | |||
| Dia(mm) | 12.5 | 22.5 | 32.5 | 42.5 | |
| Outer conductor | Material | Corrugated Copper tube | Corrugated Copper tube | Corrugated Copper tube | Corrugated Copper tube |
| Dia(mm) | 14.0 | 25.0 | 36.0 | 46.5 | |
| Sheath | Material | Polyethylene or Low Smoke Free Halogen | |||
| Dia(mm) | 16.0 | 28.0 | 39.0 | 50.0 | |
| Cable weight (kg/m) | 0.28 | 0.60 | 1.20 | 1.70 | |
| Cable marking | 1/2”：”PACIFIC CTLLCX 1/2” CFC-50 OHM” and length 7/8”：”PACIFIC CTLLCX 7/8” CFC-50 OHM” and length 1-1/4”：”PACIFIC CTLLCX 1-1/4” CFC-50 OHM” and length 1-5/8”：”PACIFIC CTLLCX 1-5/8” CFC-50 OHM” and length |
||||
＊ CTLLCX：Name of PEWC low loss coaxial cable product
＊ 7/8”：Size of cable,approximate the dielectric diameter.
＊ CFC：Material of inner conductor、dielectric and outer conductor.
1st code ”C”：Inner conductor material is copper.
2nd code ”F”：Dielectric material is foam polyethylene.
3rd code ”C”：Outer conductor material is copper.
＊ FR：Sheath material is flame retardant and low smoke free halogen compound.
Mechanical properties
| Item | CTLLCX 1/2" CFC-(FR) |
CTLLCX 7/8" CFC-(FR) |
CTLLCX 1-1/4" CFC-(FR) |
CTLLCX 1-5/8" CFC-(FR) |
|---|---|---|---|---|
| Min. Bending radius(mm) | 125 | 250 | 380 | 500 |
| Max. Tensile force(kgf) | 110 | 140 | 170 | 200 |
| Clamp spacing(M) | 0.6 | 0.83 | 1.0 | 1.2 |
| Temperature range | -40℃~+60℃ | -40℃~+60℃ | -40℃~+60℃ | -40℃~+60℃ |
Electrical properties（at 20℃)
| Item | CTLLCX 1/2" CFC-(FR) |
CTLLCX 7/8" CFC-(FR) |
CTLLCX 1-1/4" CFC-(FR) |
CTLLCX 1-5/8" CFC-(FR) |
|---|---|---|---|---|
| Inner conductor (Ω/km) | 1.6 | 1.0 | 0.6 | 0.8 |
| Outer conductor (Ω/km) | 1.9 | 1.0 | 0.4 | 0.3 |
| Insulation resistance(MΩ-km) | ＞1500 | ＞1500 | ＞1500 | ＞1500 |
| Capacitance(pF/m) | 75 | 75 | 75 | 75 |
| Velocity of propagation (%) | 88 | 88 | 88 | 88 |
| Impedance(Ω) @200MHz | 50 | 50 | 50 | 50 |
Return loss(dB)
@824~960MHz @1710~1880MHz @1915~2165MHz |
>20.8 | >20.8 | >20.8 | >20.8 |
| Attenuation(dB/100m) | Table 1 | Table 1 | Table 1 | Table 1 |
Table 1 Attenuation(nominal)
| Freq.(MHz) | 1/2" | 7/8" | 1-1/4" | 1-5/8" |
|---|---|---|---|---|
| 30 | 1.17 | 0.641 | 0.444 | 0.356 |
| 150 | 2.67 | 1.47 | 1.03 | 0.834 |
| 300 | 3.83 | 2.13 | 1.50 | 1.22 |
| 450 | 4.75 | 2.65 | 1.87 | 1.53 |
| 824 | 6.56 | 3.69 | 2.63 | 2.17 |
| 890 | 6.85 | 3.87 | 2.76 | 2.28 |
| 900 | 6.90 | 3.90 | 2.78 | 2.30 |
| 960 | 7.12 | 4.02 | 2.87 | 2.38 |
| 1700 | 9.74 | 5.56 | 4.04 | 3.35 |
| 1800 | 10.10 | 5.75 | 4.16 | 3.52 |
| 1900 | 10.40 | 5.95 | 4.28 | 3.60 |
| 2000 | 10.70 | 6.11 | 4.43 | 3.71 |
| 2200 | 11.20 | 6.46 | 4.70 | 3.88 |
| 2300 | 11.50 | 6.63 | 4.82 | 4.05 |
※The maximum value shall not exceed 115% of nominal value.