2016 CCTV CATV hot salel best price 75ohm coaxial cable qr540 with messenger
1) Construction | ||
Center Conductor: | 3.15±0.01mm CU/CCA | |
Dielectric: | 13.03±0.1mmFoam PE | |
Out Conductor: | 13.72mm Al tube | |
Jacket: | 15.49±0.1mm PE | |
Jelly/APD | Per Customer’ Special Requirement | |
2) Characteristics | ||
Sparker Test: | 4000VAC | |
Impedance: | 75±3 Ohm | |
Capacitance: | 50±3pF/m | |
Velocity of Propagation: | 88% | |
Return Loss: | 20dB min (30-470MHz) | |
| 20dB min (470-1000MHz) | |
Attenuation | [@68o F. (20o C.)] | |
Frequency (MHz) | Maximum (dB/100 ft.) | Maximum (dB/100 m) |
5 | 0.14 | 0.46 |
55 | 0.47 | 1.54 |
250 | 1.03 | 3.38 |
450 | 1.4 | 4.59 |
550 | 1.56 | 5.12 |
750 | 1.85 | 6.07 |
865 | 2 | 6.56 |
1000 | 2.17 | 7.12 |