Avionics News January 2021 - 61

expanding air traffic control coverage that would be
impractical with a ground-based option.
For example, an evaluation of space-based ADS-B
in Caribbean airspace could lead to use of space-based
ADS-B in oceanic airspace controlled by the FAA's
Miami, New York, and other air route traffic control
centers. The region was chosen for this evaluation
primarily due to recurring reliability issues with main
radar for the region on the Grand Turks.
So space-based ADS-B is under consideration by other
air navigation service providers, among them COCESNA
- the Corporación Centroamericana de Servicios de
Navegación Aérea - the air navigation services provider
for most of Central America, including Belize, Costa
Rica, El Salvador, Guatemala, Honduras, and Nicaragua.
Additionally, COCESNA has voiced interest in becoming
the service provider for a large, no-flight-information
region, airspace where air traffic services are not available.
Next up: uAvionix tailBeaconX -
a 1090ES solution with diversity
In mid-February 2020, uAvionix unveiled its latest
multifunction offering with a new ADS-B transponder
for both general aviation and urban air mobility
machines: the tailBeaconX.
This new option for a 1090 MHz Mode S Extended
Squitter ADS-B Out transponder addresses global air
traffic surveillance system requirements for current
and future ADS-B mandates, including those requiring
diversity - that is, top- and bottom-mounted antennae.
uAvionix's tailBeaconX integrates with the uAvionix
AV-20-E and AV-30-E electronic flight instrument
systems to provide transponder control on most popular
multifunction displays. Once again, uAvionix took the
same path it employed with its original skyBeacon and
tailBeacon ADS-B transponders by using the existing
aircraft lighting locations for mounting and access to
aircraft power.
tailBeaconX sports an LED rear-position light that
replaces the original tail-position light in a package that
makes the 1090 MHz Mode S Extended Squitter ADS-B
Out transponder an integral part of the package - along
with the antennae.
tailBeaconX is also uAvionix's first commercially
available avionics solution designed to meet the needs of
urban air mobility aircraft. Electric takeoff and landing
aircraft, powered by batteries and alternative fuels, require
radically different solutions than those that exist today.
tailBeaconX weighs only 90 grams, takes no critical

volume from an internal avionics bay, incorporates its own
antennas, and draws only 3 watts of power. This results
in longer flight times and higher payload capacity for the
next generation of battery-powered airborne mobility.
Further, tailBeaconX is the first transponder
specifically evaluated by Aireon and Nav Canada for
compatibility with Aireon's space-based satellite ADS-B
system. The tests showed promise toward meeting
performance requirements for ATC-quality surveillance
data for general aviation aircraft.
" A solution like tailBeaconX will expand the proven
safety and operational benefits of ADS-B through a
space-based service to the general aviation community, "
said Cyriel Kronenburg, vice president of aviation
services for Aireon. " We're pleased to collaborate
on these types of innovative avionics solutions with
uAvionix as various global ADS-B mandates take effect
in the coming months and years. "
One of the aspects of the tailBeaconX generating
particularly big excitement involves the control options
available for the tailBeaconX. In addition to the AV-30-E
EFIS and AV-20-E MFD options for transponder control
functionality, a host of cockpit retrofit upgrade options
are available to maximize cockpit panel real estate by
including added functionality such as attitude indicator,
directional gyro, angle of attack, bus voltage, and others.
Finally, tailBeaconX is also available as a remotely
controlled unit compatible with many existing EFIS displays
that implement a serial transponder control function such as
MGL and GRT displays, as well as UAM autopilot control.
Tracking requirements
Some of the world's air traffic service providers
have shown more flexibility than the FAA in the U.S.,
alternatively postponing effective dates for equipping
with ADS-B Out and rescheduling the dates by which
operators will need to comply.
And the arrival of the Aireon option for satellite-based
surveillance opened the door to more countries making
ADS-B their tool for tracking air traffic and managing
that traffic though their airspace. The option for
surveillance over the vast expanses of oceanic airspace
will, by itself, entice more nations to plug in. Their
reasoning will range from safety and traffic surveillance
to more fiscally oriented reasoning - the revenue
available from aircraft transiting their airspace.
So expect to see further developments in diversitycapable ADS-B systems as more countries decide to tip
their beaks into the pool. q
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2021

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Avionics News January 2021

Table of Contents for the Digital Edition of Avionics News January 2021

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Avionics News January 2021 - Intro
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Avionics News January 2021 - Cover2
Avionics News January 2021 - 1
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