Tutor Platform
Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

Sign in to generate a study note

From the FAA library

  • Chapter 11: Communication & Navigation › Radio Navigation › Automatic Direction Finder (ADF)

    Automatic Direction Finder (ADF) An automatic direction finder (ADF) operates off of a ground signal transmitted from a NDB. Early radio direction finders (RDF) used the same principle.A vertically polarized antenna was used to transmit LF frequency radio waves…

  • Chapter 16: Navigation › Angle of Intercept › Automatic Direction Finder (ADF)

    Automatic Direction Finder (ADF) Many general aviation-type aircraft are equipped with ADF radio receiving equipment. To navigate using the ADF, the pilot tunes the receiving equipment to a ground station known as a nondirectional radio beacon…

  • Chapter 9: Navigation Systems › Space Wave › Disturbances to Radio Wave Reception

    automatic direction finder (ADF) and LORAN (LOng RAnge Navigation) ,are particularly subject to static disturbance. Using very high frequency (VHF) and ultra-high frequency (UHF) frequencies avoids many of the discharge noise effects. Static noise heard on navigation or communication ... autopilot. • High-pitched squeal on audio. • Motorboat sound on audio. • Loss of all avionics. • Inoperative very-low frequency (VLF) navigation system. • Erratic instrument readouts. • Weak transmissions and poor radio reception. • St. Elmo’s Fire…

  • Appendix B: Acronyms

    Users Page AC—Advisory Circular ACARS—Aircraft Communications Addressing and Reporting System ADCs—Air Data Computer ADDS—Aviation Digital Data Services ADF—Automatic Direction Finder ADS—Automatic Dependent Surveillance ADS-B—Automatic Dependent Surveillance-Broadcast AEG—Aircraft Evaluation Group A/FD ... Actual Navigation Performance AOC—Aircraft Operational Communications APT WP—Airport Waypoint APV—Approach with Vertical Guidance ARINC—Aeronautical Radio Incorporated A-RNAV—Advanced Area Navigation ARTCC—Air Route Traffic Control Center ARTS—Automated Radar Terminal System ASDA—Accelerate-Stop Distance…