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RADAR and Communications. Overview. Radar Aircraft Equipment FAA Radar systems VFR services available Terminal information systems Radio Procedures Lost Communications Emergencies Lost procedures. References. Jeppesen Private Pilot Manual Ch. 5 AIM Chapter 4, Sections 1 and 2
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Overview • Radar • Aircraft Equipment • FAA Radar systems • VFR services available • Terminal information systems • Radio Procedures • Lost Communications • Emergencies • Lost procedures
References • Jeppesen Private Pilot Manual • Ch. 5 • AIM • Chapter 4, Sections 1 and 2 • Pilots Handbook of Aeronautical Information • Chapter 12, section 8
Objectives • Know what equipment you need in your aircraft for two way communications and to be picked up by ATC Radar • Be familiar with the Radar, ATC and FSS services available to VFR Pilots • Be able to use proper phraseology on the radio • Understand proper radio procedures when operating around airports • Know where to find proper frequencies for use in certain areas • Know what to do and expect in the event of lost communications or another emergency in flight • Know what you would do if you were to find yourself lost
Radar • Radio Detection and Ranging • Uses synchronized radio transmitter and receiver to emit radio waves and process their reflections for display • Primary radar is a ground based system used by ATC which transmits radio waves in a narrow beam by a rotating antenna • When the radio waves strike your aircraft some of the waves are reflected back to the antenna and processed to provide a display, or echo, which shows your aircrafts location on a radarscope
Radar • Range: distance from antenna • Determined by measuring the time it takes for the radio waves to reach your aircraft and return to the receiving antenna • Azimuth: angle of your aircraft from radar site • Determined by the position of the rotation antenna and then reflected portion of the radio wave is received. • Measured clockwise from north on horizontal plane.
Transponder • Must be inspected every 24 calendar months (controlled airspace)
Transponder • Codes • 7700: Emergency • 7600: Communication Failure • 7500: Hijacking
FAA Radar Systems • Airport Surveillance Radar (ASR) • Direction and coordination of IFR traffic • Specific Terminal areas • Approach and Departure • Terminal Radar Approach Facilities (TRACON) • Radar and non radar services at major airports • Ensure safe operation of aircraft transitioning from departure to cruise flight or from cruise to a landing approach • Automated Radar Terminal Systems (ARTS) • Busiest terminals in the country • Various Configuration • Provides continuous display of position, altitude, groundspeed, and other pertinent information • Must have MODE C transponder and altitude encoding altimeter • Direct altitude readout allows for more traffic handling
Air Route Surveillance Radar • Air Route Surveillance Radar (ARSR) • Long range radar equipment used in controlled airspace to manage traffic • About 100 throughout the country • Detect aircraft within 200 – 600 miles • Air route traffic control centers (ARTCCs) • Direction and coordination of IFR traffic • Workload permitting, controllers can provide traffic advisories and course guidance if requested to VFR traffic • Can assist if lost or disoriented
VFR Radar Services • Radar traffic Information Service • Flight Following • Must have Mode C to know altitude
Safety Alerts • Safety Alert • ATC may issue safety alerts when they feel it is necessary • Terrain, other traffic, obstructions • Minimum safe altitude warning • MSAW • Alerts controller when an aircraft is in unsafe proximity to terrain or obstructions • May request if you have Mode C
Terminal VFR Radar Service • National program extending from terminal radar services for IFR to VFR aircraft • Services (Check AFD) • Basic radar service • Safety alerts, traffic advisories, limited radar vectoring • Terminal radar service area • Class C • Class B
Automatic Terminal Information Service • Automatic Terminal Information service (ATIS) • High activity terminal areas • Prerecorded and broadcast continually • May be one for departing and one for arriving • Labeled (Alpha, Bravo, etc) • Weather, frequency, runway, and other general airport information
Flight Service Stations • Flight Service Station (FSS) • ATC facilities • Weather briefings, enroute communication, VFR search and rescue services • Lost aircraft • Emergencies • Relay clearances • NOTAMs • Receive and Process flight plans
Radio Procedures • VHF Communication Equipment • Line of sight
Coordinated Universal Time • Zulu Time • Prime meridian/Greenwich, England • 24 hour clock plus your time zone difference • GFK: Add 6 hours or 5 hours during daylight savings time
Common Traffic Advisory Frequency • Uncontrolled airports • Traffic Information • Pilot-controlled lighting • A/FD, Sectional or FSS
Unicom • Aeronautical Advisory Frequency • Privately owned • CTAF may be Unicom at some airports • Services (FBO)
Airport Advisory Areas • Local Airport advisory service (LAA) provided at selected uncontrolled airports with FSS on field • CTAF frequency • Extends out to 10 statute miles • May provide • Wind direction • Favored runway • Altimeter • NOTAMS • Etc.
Self Announcing • MULTICOM for airports with no FSS, UNICOM or CTAF • 122.9
CTAF • Initial call 10 miles out from airport • Report entering downwind, base and final legs of traffic pattern • Exiting runway or environment • Monitor from taxi to 10 miles out
ATC • Initial call - up • Facility name • Full aircraft identification • Information (if applicable) • Always restate your identification and request • May be asked to “ident”
Radar Facilities • Departure • Clearance Delivery • Ground Control • Progressive taxi • Tower • Arrival
Lost Communication Procedures • squawk 7600 • Check: • Frequency • Volume • Switch position • Hand held mike • Alternate transceiver if available • Call last frequency you could talk to if still in range
Lost Communication Procedures • No Luck? • Remain Outside or above airspace until you have determined traffic flow • Maintain visual contact with tower
Emergency Procedures • Distress: Condition of being threatened by serious and or imminent danger and requiring immediate assistance • Emergency Frequency: 121.5 • “MAYDAY” Commands radio silence of frequency in use • “PAN-PAN” • Urgent situation in progress has priority over all other communications and warns other stations nto to interfere with transimissions
LOST • 5 C’s • Climb • Radio Reception/Radar coverage • Visibility • Communicate • Any available facility • Confess • Admit it, your lost • Comply • Assistance instructions • Conserve • Fuel
ELT • Emergency Locator Transmitter • Required for most general aviation airplanes • Transmit distinctive tone on 121.5 MHz (VHF) and 243.0 MHz (UHF) • Operate continuously for 48 hours • False Signals • Hard landings • Ground crew • Aircraft maintenance • Replace Batteries • 1 hour continuous use • 50%