电缆的结构尺寸
|
|
|
RG8 |
|
内导体 |
材料 |
裸铜丝 |
|
直径 |
10AWG(2.59mm) |
|
|
绝缘体 |
材料 |
发泡 PE |
|
直径 |
7.25mm |
|
|
屏蔽 |
材料 |
铝箔+镀锡铜丝编织 |
|
覆盖密度 |
35%-75% |
|
|
护套 |
材料 |
PVC/PE |
|
厚度 |
0.80mm |
|
|
直径 |
10.24mm |
电缆的电气性能
|
阻抗(Ω) |
50 |
||
|
传输速率(%) |
85 |
||
|
电容 (pF/m) |
81 |
||
|
火花试验 (VAC) |
3000 |
||
|
回波损耗(dB) |
20 |
||
|
衰减常数 |
MHz |
≤dB/100ft |
≤dB/100m |
|
5 |
0.40 |
1.31 |
|
|
10 |
0.50 |
1.64 |
|
|
50 |
1.00 |
3.28 |
|
|
100 |
1.40 |
4.59 |
|
|
200 |
1.80 |
5.9 |
|
|
400 |
2.60 |
8.52 |
|
|
700 |
3.60 |
11.8 |
|
|
900 |
4.10 |
13.44 |
|
|
1000 |
4.40 |
14.43 |
|
|
1500 |
5.50 |
18.03 |
|
|
1800 |
6.10 |
20.00 |
|
|
2000 |
6.50 |
21.31 |
|
|
2500 |
7.50 |
24.59 |
|
|
3000 |
8.30 |
27.21 |
|
|
4000 |
9.90 |
32.46 |
|
