Coaxial Cable
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How To
- http://www.hometech.com/tools/coax.html
- http://www.hometech.com/learn/coaxterm.html
- http://www.hometoys.com/htinews/aug99/articles/karas/karas.htm
- http://www.broadbandutopia.com/coaxial.html
- http://www.interstateelectronics.com/howto/coaxterm.html
Impedance
Video
Type Imped. Core Comments RG-6/U 75 Ω 1.0 mm low loss at high frequency for cable television, satellite television and cable modems RG-11/U 75 Ω 1.63 mm Used for long drops and underground RG-59/U 75 Ω 0.81 mm used to carry baseband video in closed-circuit television
HAM
Type Imped. Core Loss Comments RG-58/U 50 Ω 0.9 mm loss is 5 dB/100 feet common. used for radiocommunication and amateur radio RG-8/U 50 Ω 2.17 mm common. used for amateur radio RG-213/U 50 Ω 7×0.0296 in Cu loss is 3 dB/100 feet lower losss than RG-58 RG-218/U 50 Ω 0.195 in Cu loss is 1 dB/100 feet
Coax Cable Attenuation Details
Coax Cable Attenuation Details:
Coax Cable Signal Loss (Attenuation) in dB per 100ft* |
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Loss @ |
RG-174 |
RG-58 |
RG-8X |
RG-213 |
RG-6 |
RG-8U | RG-11 |
RF-9914 |
RF-9913 |
1MHz |
1.9dB |
0.4dB |
0.5dB |
0.2dB |
0.2dB |
0.1dB | 0.2dB |
0.3dB |
0.2dB |
10MHz |
3.3dB |
1.4dB |
1.0dB |
0.6dB |
0.6dB |
0.4dB | 0.4dB |
0.5dB |
0.4dB |
50MHz |
6.6dB |
3.3dB |
2.5dB |
1.6dB |
1.4dB |
1.1dB | 1.0dB |
1.1dB |
0.9dB |
100MHz |
8.9dB |
4.9dB |
3.6dB |
2.2dB |
2.0dB |
1.5dB | 1.6dB |
1.5dB |
1.4dB |
200MHz |
11.9dB |
7.3dB |
5.4dB |
3.3dB |
2.8dB |
2.1dB | 2.3dB |
2.0dB |
1.8dB |
400MHz |
17.3 B |
11.2dB |
7.9dB |
4.8dB |
4.3dB |
3.2dB | 3.5dB |
2.9dB |
2.6dB |
700MHz |
26.0dB |
16.9dB |
11.0dB |
6.6dB |
5.6dB |
4.2dB | 4.7dB |
3.8dB |
3.6dB |
900MHz |
27.9 B |
20.1dB |
12.6dB |
7.7dB |
6.0dB |
5.7dB | 5.4dB |
4.9dB |
4.2dB |
1000MHZ |
22.0dB |
21.5dB |
13.5dB |
8.3dB |
6.1dB |
5.9dB | 5.6dB |
5.3dB |
4.5dB |
Impedance |
50ohm |
50ohm |
50ohm |
50ohm |
75ohm |
50ohm | 75ohm |
50ohm |
50ohm |
Chart is based on 100 feet of coax. |
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