---
title: "Coax Cables"
summary: A quick comparison of the three coax types that I use.
date: 2024-03-02T09:55:35+01:00
lastmod: 2024-03-31T11:02:44+0000

showBreadcrumbs: true
showReadingTime: false
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---

## 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.