Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-100
26-Jul-2017
AUTOMATIC DIRECTION FINDER (ADF)
The ADF system is used to display the bearing from the aircraft to a ground station. The ground station may
either be a non-directional beacon (NDB) or a standard amplitutde modulation (AM) broadcast station sending
within the frequency range of 190.0 to 1799,5 kHz.
The CRJ has two ADF receivers ADF 1 and ADF 2 which may be operated independently.
Bearing selection is made on the pilot or copilots display control panel (DCP) whereas the bearing-to-station
data is displayed in the HSI section of the PFD or on the MFDs.