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Coaxial Cables

 

Type of Coaxial Cables

 

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.

 

Low Loss Coaxial Cable

1. Inner conductor-Corrugated Copper tube /Copper tube/Copper Clad Aluminum wire
2. Dielectric –Foam Polyethylene
3. Outer Conductor-Corrugated Copper tube
4. Sheath- Polyethylene or Low Smoke Free Halogen compound

 

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

 

 

1/2”,7/8”,1-1/4”,1-5/8” as following :
Construction

Item

Specification

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

Specification

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

Specification

CTLLCX
1/2”
CFC-(FR)

CTLLCX
7/8”
CFC-(FR)

CTLLCX
1-1/4”
CFC-(FR)

CTLLCX
1-5/8”
CFC-(FR)

Inner conductor resistance(Ω/km)

1.6

1.0

0.6

0.8

Outer conductor resistance(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.