Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task I. Communication and Navigation Systems

AM.II.I.K10

Knowledge

Distance measuring equipment (DME) theory, components, and operation.

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.

From the FAA library

14 CFR Part 121 — Operating Requirements: Domestic, Flag, and Supplemental Operations Open
14 CFR § 121.349 Communication and navigation equipment for operations under VFR over routes not navigated by pilotage or for operations under IFR or over the top.
Communication and navigation equipment for operations under VFR over routes not navigated by pilotage or for operations under IFR or over the top. (a) Navigation equipment requirements—General. No person may conduct operations under VFR over routes that cannot ... navigated by pilotage, or operations conducted under IFR or over the top, unless— (1) The en route navigation aids necessary for navigating the airplane along the route (e.g., ATS routes, arrival and departure routes, and instrument approach procedures, including missed…
14 CFR Part 135 — Operating Requirements: Commuter and on Demand Operations and Rules Governing Persons on Board Such Aircraft Open
14 CFR § 135.165 Communication and navigation equipment: Extended over-water or IFR operations.
Communication and navigation equipment: Extended over-water or IFR operations. capability of the single independent navigation system permitted by this paragraph at any point along the route, for proceeding safely to a suitable airport and completing an instrument approach ... suitable airport by use of the remaining navigation system, and complete an instrument approach and land. (c) VOR navigation equipment. Whenever VOR navigation equipment is required by paragraph (a) or (b) of this section, no person may operate an aircraft…