Aviation Dictionary

Relative bearing indicator (RBI)

Also known as the fixed- card ADF, zero is always indicated at the top of the instrument and the needle indicates the relative bearing to the station.

Dictionary Term

Relative bearing indicator (RBI)

Definition

Also known as the fixed- card ADF, zero is always indicated at the top of the instrument and the needle indicates the relative bearing to the station.

References

Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023