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.

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 2024-09-28T23:48:06+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.