You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

37 lines
1.4 KiB

---
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
showWordCount: 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.