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