Garmin GMX 200 Pilot's Manual & Reference

Also see for GMX 200: Pilot's guide Reference guide Installation Pilot's Guide & Reference Specification

Contents

36Detailed OperationADS-B TrafficADS-B equipment may be certified as an air-to-airsystem for enhancing situational awareness and as asurveillance source for air traffic services. Refer to theaircraft’s flight manual supplement for the specificaircraft installation.ADS-B enables improved surveillance services, bothair-to-air and air-to-ground, especially in areas whereradar is ineffective due to terrain or where it is imprac-tical or cost prohibitive. Initial NAS applications ofair-to-air ADS-B are for “advisory” use only, enhancinga pilot’s visual acquisition of other nearby equippedaircraft either when airborne or on the airport sur-face. Additionally, ADS-B may enable ATC and fleetoperators to monitor aircraft throughout the avail-able ground station coverage area. Other applicationsof ADS-B may include enhanced search and rescueoperations and advanced air-to-air applications such asspacing, sequencing, and merging.ADS-B avionics allow pilots to enter the aircraft’sFlight ID and Air Traffic Control (ATC)-assignedsquawk (or “4096”) code. This code should be enteredas either the transponder code on standard tran-sponders, or the ADS-B code on ADS-B equipment,depending on the installation.NOTE: Some ADS-B avionics panels are not in-terconnected to the transponder. In this case, theADS-B code entry should be disabled, so that ATCcannot receive different transponder and ADS-Bcodes from the same aircraft. There should be oneand only one place for the pilot to enter the ATCcode. Consult your installing avionics shop withquestions.Additionally, UAT systems provide a VFR mode thatmay be used by pilots when not wanting to receive airtraffic services. The “Set 1200” feature will broadcast a“VFR” Flight ID to other aircraft and ground receivers,similar to using a “1200” transponder code.ADS-B is intended to be used both in-flight and onthe airport surface. ADS-B systems should be turned“on” -- and remain “on” -- whenever operating inthe air and on the airport surface, unless a change to“standby” was requested by ATC.The ADS-B cockpit display of traffic is NOTintended to be used as a collision avoidancesystem and does not relieve the pilot’s respon-sibility to “see and avoid” other aircraft. ADS-B shall not be used for avoidance maneuversduring IMC or other times when there is no visualcontact with the other target aircraft. ADS-B isintended only to assist in visual acquisition ofother aircraft. No avoidance maneuvers are pro-vided for, nor authorized, as a direct result of anADS-B target being displayed in the cockpit.Use of ADS-B air traffic service is limited to the servicevolume of the GBT. Note that the coverage volume of GBTsis limited to line-of-sight.Traffic DescriptionYour position is located at the tip of the empty tri-angle (Ownship symbol). The other traffic is shown as alarge solid cyan (light blue) arrow pointing in its directionof travel. Next to the traffic arrow symbol is the trafficidentifier, and altitude. Altitude is selected as either Pres-sure or Relative Altitude as noted in the upper left cornerof the display.ADS-B Traffic information detail