Installation And Connection; Installing The Radio; Precautions During Installation; Installation Location When Used In A Mobile Unit - Yaesu FTM-400DR Operating Manual

Note the following when installing this radio.
Do not install the radio in a place where there is extreme vibration, where there is a
lot of dust, excessive humidity or high temperature, or where it is exposed to direct
sunlight.
Install the radio in a well ventilated position, so heat release is not obstructed
because the heat sink gets hot when transmitting for a long periods of time.
Do not place any objects on top of the main body.
Do not lift up or hold the controller by holding the knob or control cable.
A regulated, negative ground 13.8 V DC power supply is required for this radio.
Check that the car battery is a negative ground 12 V system when using this radio in
a mobile unit. Never connect this radio to the 24 V battery of a large vehicle.
Never connect this radio to a 120 V AC power source.
Note that there is a risk that hum and noise may be introduced, depending on the
installation condition and the external power source used.
Install the device as far away as possible from the TV and radio to avoid TV and radio
interference (TVI, BCI).
In particular, do not install this radio near indoor antenna elements.

Installation location when used in a mobile unit

●
It is recommended that the controller be installed on top of the car dash board or in front
of the center console. Refer to Page 28 on how to install the controller.
●
It is recommended that the main body be installed below the car dash board or to the
side of the center console. Refer to Page 27 on how to install the main body.
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Controller
Radio main body