AUTOMATIC DEPENDENT SURVEILLANCE REBROADCAST (ADS-R)

Definition

• A datalink translation function of the ADS−B ground system required to accommodate the two separate operating frequencies (978 MHz and 1090 MHz). The ADS−B system receives the ADS−B messages transmitted on one frequency and ADS−R translates and reformats the information for rebroadcast and use on the other frequency. This allows ADS−B In equipped aircraft to see nearby ADS−B Out traffic regardless of the operating link of the other aircraft. Aircraft operating on the same ADS−B frequency exchange information directly and do not require the ADS−R translation function.

References

• Pilot Controller Glossary, Federal Aviation Administration, 2023