A Tech-Tip tutorial created by Paul Peters, VE7BZ.

This tutorial applies to LMR-400 coax cable and the Times Microwave EZ400 connector series

The best crimp connectors for LMR-400 cable are made by Times Microwave. While a little pricey, the EZ400 connector group is the ideal solution to your LMR-400 connector issues. These connectors are very easy to install (with the correct tool set) and the fit to LMR-400 cable is superb!

To make the EZ400 crimps, you need the HX-4 piston crimping tool with the Y1719 die, the DBT-01 de-burring tool and the ST-400EZ rotary stripping tool -- or you could buy the TK-400EZ kit. Here is a page from the Times Microwave catalog showing these tools.

The three most common EZ400 connectors

EZ-400 NMH D (Type N male)
Installation video (28.5MB)

EZ-400 NF (Type N female)

The EZ-400 UM (PL259)

Note: The Times Microwave site has more connector installation videos. Files are large, and may be slow to download.

EZ-400-NMH Connector Installation Procedure on LMR-400

All three connectors in this series (shown above) use exactly the same install procedure. Just follow the images below for perfect connectors on LMR-400 cable. Source: Times Microwave pictorials

The Orca DX and Contest Club receives no goods or services in kind or any form of advertising revenue from Times Microwave in exchange for the references to their EZ400 product line shown on this webpage.