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1.4 KiB
1.4 KiB
| title | summary | date | lastmod | showBreadcrumbs | showReadingTime | showWordCount |
|---|---|---|---|---|---|---|
| Coax Cables | A quick comparison of the three coax types that I use. | 2024-03-02T09:55:35+01:00 | 2024-03-31T11:02:44+0000 | true | false | false |
Comparison
| Name | ∅ [mm] | Impedance [Ω] | Lenght [m] | Loss [dB] | Loss/100m [dB] | Weight/m [kg] |
|---|---|---|---|---|---|---|
| H-155 | 5.50 | 50.44 | 10.18 | 0.329 | 3.232 | 0.38 |
| RG-174 | 2.79 | 50.70 | 6.03 | 0.775 | 12.850 | 0.01 |
| RG-316 | 2.59 | 49.45 | 5.15 | 0.568 | 11.025 | 0.01 |
Measurements have been made with a NanoVNA-H (HW version 3.4) version 1.2.19 (Build time: Jan 31 2023 - 16:06:06) at 14.020 MHz (because that is around the frequency that I use mainly at my home QTH).
What cable to use?
I usually use the H-155 at home because the 10m are a good fit from my terrace to the table in the living room and it has the least loss and weight is not a factor when deploying at home.
For portable operation I use the RG-316 because it is very leightweight and is "not so lossy" than the RG-174.
I'd take the RG-174 when I'm not sure about what lenght the antenna cable should be because I have two cables with 6m with the appropriate connectors already on the cables.