Order 7110.65P, Air Traffic Control, with changes

Pilot/Controller Glossary 2/17/05RADIO DETECTION AND RANGING−(See RADAR.)RADIO MAGNETIC INDICATOR− An aircraftnavigational instrument coupled with a gyro compassor similar compass that indicates the direction of aselected NAVAID and indicates bearing with respectto the heading of the aircraft.RAIS−(See REMOTE AIRPORT INFORMATIONSERVICE.)RAMP−(See APRON.)RANDOM ALTITUDE− An altitude inappropriatefor direction of flight and/or not in accordance withFAAO 7110.65, Para 4−5−1, VERTICAL SEPARA-TION MINIMA.RANDOM ROUTE− Any route not established orcharted/published or not otherwise available to allusers.RC−(See ROAD RECONNAISSANCE.)RCAG−(See REMOTE COMMUNICATIONSAIR/GROUND FACILITY.)RCC−(See RESCUE COORDINATION CENTER.)RCO−(See REMOTE COMMUNICATIONS OUTLET.)RCR−(See RUNWAY CONDITION READING.)READ BACK− Repeat my message back to me.RECEIVER AUTONOMOUS INTEGRITY MON-ITORING (RAIM)− A technique whereby a civilGNSS receiver/processor determines the integrity ofthe GNSS navigation signals without reference tosensors or non-DoD integrity systems other than thereceiver itself. This determination is achieved by aconsistency check among redundant pseudorangemeasurements.RECEIVING CONTROLLER− A controller/facilityreceiving control of an aircraft from another controller/facility.RECEIVING FACILITY−(See RECEIVING CONTROLLER.)RECONFORMANCE− The automated process ofbringing an aircraft’s Current Plan Trajectory intoconformance with its track.REDUCE SPEED TO (SPEED)−(See SPEED ADJUSTMENT.)REIL−(See RUNWAY END IDENTIFIER LIGHTS.)RELEASE TIME− A departure time restrictionissued to a pilot by ATC (either directly or through anauthorized relay) when necessary to separate adeparting aircraft from other traffic.(See ICAO term RELEASE TIME.)RELEASE TIME [ICAO]− Time prior to which anaircraft should be given further clearance or prior towhich it should not proceed in case of radio failure.REMOTE AIRPORT ADVISORY (RAA)− A remoteservice which may be provided by facilities,which are not located on the landing airport, but havea discrete ground−to−air communication frequencyor tower frequency when the tower is closed,automated weather reporting with voice available tothe pilot at the landing airport, and a continuousASOS/AWOS data display, other direct readinginstruments, or manual observation is available to theAFSS specialist.REMOTE AIRPORT INFORMATION SERVICE(RAIS)− A temporary service provided by facilities,which are not located on the landing airport, but havecommunication capability and automated weatherreporting available to the pilot at the landing airport.REMOTE COMMUNICATIONS AIR/GROUNDFACILITY− An unmanned VHF/UHF transmitter/receiver facility which is used to expand ARTCCair/ground communications coverage and to facilitatedirect contact between pilots and controllers. RCAGfacilities are sometimes not equipped with emergencyfrequencies 121.5 MHz and 243.0 MHz.(Refer to AIM.)REMOTE COMMUNICATIONS OUTLET− Anunmanned communications facility remotely controlledby air traffic personnel. RCOs serve FSSs.RTRs serve terminal ATC facilities. An RCO or RTRmay be UHF or VHF and will extend the communicationrange of the air traffic facility. There are severalclasses of RCOs and RTRs. The class is determinedby the number of transmitters or receivers. Classes Athrough G are used primarily for air/ground purposes.RCO and RTR class O facilities are nonprotectedPCG R−4