Installation and Operation
Scope of Functionality
DV16401.03 Issue 04 May 2021 BD406/PBD406 19
Power Supply - BD406
BD406 has an operational power range of 9...32 VDC but start-up (power-on) of the device requires
10.5...32V DC. Once the device is operational the power supply can be reduced to 9 VDC.
Power Supply - PBD406
PBD406 power is supplied from an internal 12.0 V maintenance-free rechargeable, sealed dry acid
battery. The internal power module, installed inside the chassis, operate in a range of 9...36 VDC.
Estimated charge time for a depleted battery is approximately 8 hours. The charger can also be used
as an external power supply; therefore there is no need to disconnect the charger when the battery is
fully charged. The charger can be safely left plugged in. The nominal operating time on full battery
charge is no less than 5 hours.
The battery is protected against a deep discharge – PBD406 will not operate/start when battery
voltage is < 10.5 V.
The battery should be charged every six months for long term inactive storage periods of more than
six months.
Notice: Operating time of PBD406 can decrease for ambient temperatures < 0 °C.
Audio Outputs
The receiver has two audio outputs: headphone and speaker.
Headphone rated output power: 300 mW into 150 Ω.
Speaker rated output power: 4 W into 4 Ω.
Illumination
BD406/PBD406 with control head:
The illumination of LCD and push buttons can be controlled internally from the front panel knob or
externally via the dimming inputs.
With external dimming the illumination curve (brightness to voltage relation) can be adjusted in the
installation setup.
For BD406-(011) / PBD406-(011) the illumination curve cannot be set.
In case of PBD406-(001) and PBD406-(011) - DIMMING INPUT must be set in installation setup in a
range of 0…14 V (see "Dimming Input" page 65).
Notice: Illumination of BD406-(XX1) / PBD406-(XX1) is automatically off when the power
supply voltage is below 10.5V.
Audio Notifications
BD406 have a voice notification system that informs the user about:
• Incoming COSPAS/SARSAT messages, homing – distance and bearing to the selected
target (message is triggered on demand by rotary knob or related discrete input), the
device failure. Details "Audio Notification" page 85.
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