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!Coax Cables

March 2024 · 1 minute read



## 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.


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