- Contact Person : Mr. Zhang Dongfan
- Company Name : Chengdu Kangbo Photoelectric Engineering Technology Co., Ltd.
- Tel : 0086-28-85362901
- Fax : 0086-28-85374201
- Address : Sichuan,Chengdu,1-213, 9 WUKE EAST 3 ROAD, WUHOU DIST, CHENGDU CITY, CHINA
- Country/Region : China
- Zip : 610045
QR540 Messenger Cable TV coaxial cable
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Test items | Unit | Limits | ||
Center conductor | Material | Copper aluminum | ||
Composition | Inches | Mm | ||
0.124 | 3.15±0.03 | |||
Dielectric | Material | Gas expanded pe | ||
Nom.diameter | Inches | Mm | ||
0.5137 | 13.05±0.2 | |||
Outer conductor | al tape | Material | Solid al tube | |
Nom.diameter | Inches | Mm | ||
0.0137 | 0.35 | |||
Messenger steel | Nom.diameter(mm) | 2.77±0.03 | ||
PE Jacket | Nom.thickness(mm) | Inches | Mm | |
0.0433 | 1.1 | |||
Nom.diameter | Inches | Mm | ||
0.621 | 15.78±0.2 | |||
Attenuation 68°f.(20) | Frequency | Maximum (dB/100ft) | Maximum (dB/100m) | |
50MHz | 0.49dB↓ | 1.60 dB↓ | ||
200MHz | 0.98 dB↓ | 3.20dB↓ | ||
550MHz | 1.65 dB↓ | 5.40dB↓ | ||
800MHz | 2.01dB↓ | 6.60 dB↓ | ||
1000MHz | 2.56dB↓ | 8.40dB↓ | ||
High voltage | Ac/min | 1,000↑ | ||
Capacitance | Pf/min | 50±3 | ||
Return loss | dB | 20↑ | ||
Characteristics impedance | Ω | 75±2.0 | ||
Velocity of propagation | % | 87 | ||
QR540 Messenger Cable TV coaxial cable
