190-00607-02 Rev C
Detailed Operation
ADS-B Traffic
ADS-B equipment may be certified as an air-to-air
system for enhancing situational awareness and as a
surveillance source for air traffic services. Refer to the
aircraft’s flight manual supplement for the specific
aircraft installation.
ADS-B enables improved surveillance services, both
air-to-air and air-to-ground, especially in areas where
radar is ineffective due to terrain or where it is imprac-
tical or cost prohibitive. Initial NAS applications of
air-to-air ADS-B are for “advisory” use only, enhancing
a pilot’s visual acquisition of other nearby equipped
aircraft either when airborne or on the airport sur-
face. Additionally, ADS-B may enable ATC and fleet
operators to monitor aircraft throughout the avail-
able ground station coverage area. Other applications
of ADS-B may include enhanced search and rescue
operations and advanced air-to-air applications such as
spacing, sequencing, and merging.
ADS-B avionics allow pilots to enter the aircraft’s
Flight ID and Air Traffic Control (ATC)-assigned
squawk (or “4096”) code. This code should be entered
as 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, the
ADS-B code entry should be disabled, so that ATC
cannot receive different transponder and ADS-B
codes from the same aircraft. There should be one
and only one place for the pilot to enter the ATC
code. Consult your installing avionics shop with
questions.
Additionally, UAT systems provide a VFR mode that
may be used by pilots when not wanting to receive air
traffic 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 on
the airport surface. ADS-B systems should be turned
“on” -- and remain “on” -- whenever operating in
the air and on the airport surface, unless a change to
“standby” was requested by ATC.
The ADS-B cockpit display of traffic is NOT
intended to be used as a collision avoidance
system and does not relieve the pilot’s respon-
sibility to “see and avoid” other aircraft. ADS-
B shall not be used for avoidance maneuvers
during IMC or other times when there is no visual
contact with the other target aircraft. ADS-B is
intended only to assist in visual acquisition of
other aircraft. No avoidance maneuvers are pro-
vided for, nor authorized, as a direct result of an
ADS-B target being displayed in the cockpit.
Use of ADS-B air traffic service is limited to the service
volume of the GBT. Note that the coverage volume of GBTs
is limited to line-of-sight.
traffic description
Your position is located at the tip of the empty tri-
angle (Ownship symbol). The other traffic is shown as a
large solid cyan (light blue) arrow pointing in its direction
of travel. Next to the traffic arrow symbol is the traffic
identifier, and altitude. Altitude is selected as either Pres-
sure or Relative Altitude as noted in the upper left corner
of the display.
ADS-B Traffic information detail
