Yaesu FTM-400XDR/DE Operating Manual page 26

Installing the Radio
Cautions
z Create a loop (slack) in the co-axial cable directly underneath the antenna and fasten it so that the
weight of the cable does not pull on the antenna or connector itself.
z Install the antenna taking into consideration the securing supports and how the guying wires are
positioned, so that the antenna does not fall over or get blown away in strong winds.
GP antenna
<Veranda Mounted Example>
26
Yagi antenna
<Roof Mounted Example>