Order 7110.65P, Air Traffic Control, with changes

2/19/04Pilot/Controller GlossaryRADAR SERVICE− A term which encompasses oneor more of the following services based on the use ofradar which can be provided by a controller to a pilotof a radar identified aircraft.a. Radar Monitoring− The radar flight-followingof aircraft, whose primary navigation is beingperformed by the pilot, to observe and note deviationsfrom its authorized flight path, airway, or route.When being applied specifically to radar monitoringof instrument approaches; i.e., with precision approachradar (PAR) or radar monitoring of simultaneousILS/MLS approaches, it includes advice andinstructions whenever an aircraft nears or exceeds theprescribed PAR safety limit or simultaneous ILS/MLS no transgression zone.(See ADDITIONAL SERVICES.)(See TRAFFIC ADVISORIES.)b. Radar Navigational Guidance− Vectoring aircraftto provide course guidance.c. Radar Separation− Radar spacing of aircraft inaccordance with established minima.(See ICAO term RADAR SERVICE.)RADAR SERVICE [ICAO]− Term used to indicatea service provided directly by means of radar.a. Monitoring− The use of radar for the purpose ofproviding aircraft with information and advice relativeto significant deviations from nominal flightpath.b. Separation− The separation used when aircraftposition information is derived from radar sources.RADAR SERVICE TERMINATED− Used by ATCto inform a pilot that he/she will no longer beprovided any of the services that could be receivedwhile in radar contact. Radar service is automaticallyterminated, and the pilot is not advised in thefollowing cases:a. An aircraft cancels its IFR flight plan, exceptwithin Class B airspace, Class C airspace, a TRSA,or where Basic Radar service is provided.b. An aircraft conducting an instrument, visual, orcontact approach has landed or has been instructed tochange to advisory frequency.c. An arriving VFR aircraft, receiving radar serviceto a tower-controlled airport within Class Bairspace, Class C airspace, a TRSA, or wheresequencing service is provided, has landed; or to allother airports, is instructed to change to tower oradvisory frequency.d. An aircraft completes a radar approach.RADAR SURVEILLANCE− The radar observationof a given geographical area for the purpose ofperforming some radar function.RADAR TRAFFIC ADVISORIES− Advisories issuedto alert pilots to known or observed radar trafficwhich may affect the intended route of flight of theiraircraft.(See TRAFFIC ADVISORIES.)RADAR TRAFFIC INFORMATION SERVICE−(See TRAFFIC ADVISORIES.)RADAR VECTORING [ICAO]− Provision of navigationalguidance to aircraft in the form of specificheadings, based on the use of radar.RADAR WEATHER ECHO INTENSITY LEV-ELS− Existing radar systems cannot detect turbulence.However, there is a direct correlation betweenthe degree of turbulence and other weather featuresassociated with thunderstorms and the radar weatherecho intensity. The National Weather Service hascategorized radar weather echo intensity for precipitationinto six levels. These levels are sometimesexpressed during communications as “VIP LEVEL”1 through 6 (derived from the component of the radarthat produces the information− Video Integrator andProcessor). The following list gives the “VIP LEV-ELS” in relation to the precipitation intensity withina thunderstorm:a. Level 1. WEAKb. Level 2. MODERATEc. Level 3. STRONGd. Level 4. VERY STRONGe. Level 5. INTENSEf. Level 6. EXTREME(Refer to AC 00-45, Aviation Weather Services.)RADIAL− A magnetic bearing extending from aVOR/VORTAC/TACAN navigation facility.RADIO−a. A device used for communication.b. Used to refer to a flight service station; e.g.,“Seattle Radio” is used to call Seattle FSS.RADIO ALTIMETER− Aircraft equipment whichmakes use of the reflection of radio waves from theground to determine the height of the aircraft abovethe surface.RADIO BEACON−(See NONDIRECTIONAL BEACON.)PCG R−3