Making RF phasing cables

To get the best results from a multi yagi array you need to accurately phase the 4 yagi's (or more or less) together using phasing cables of the same electrical length.

Use this easy way to make repeat cuts of the same length of coax. In my case I use 13mm M&P coax but this will work with all sizes of coax. Click here for details

I use the SDR kits Vector Network Analyzer - DG8SAQ VNWA3  to determine my cables electrical length. I use the S11 phase measurement at the desired frequency. For more info click here

Phasing 4 antenna together requires 4 cables of the same electrical length (or 8 cables for a 4 yagi X-pol H/V system). Select two groups of 4 cables (for the H-pol and V-pol) system using a list like this one. Click here