Avidyne IFD440 - High Power Operations

IFD400 Series Pilot Guide
6-38 General
HIGH POWER OPERATIONS
The following actions are taken as input power is increased to the
IFD:
Input Voltage
IFD Operation Impact
32.3VDC
VHF radio shuts down to protect itself from
over-voltage events. Note that input voltage
up to 33VDC will not damage the VHF but it
will not function above 32.3VDC.†