AOPA Pilot Magazine - April 2016 - 106

P&E

ADS-B

Garmin launches all-in-one
ADS-B transponders
Hardware also a boon to older G1000 panels
BY MIKE COLLINS

GARMIN INTERNATIONAL has added a
line of all-in-one ADS-B transponders
to its suite of Automatic Dependent
Surveillance-Broadcast products. The
GTX 345 is a 1090ES Mode S transponder that provides ADS-B Out compliance;
it also receives weather information on the
978 MHz Universal Access Transceiver
frequency, and traffic information on both
ADS-B datalink frequencies. The GTX
335 provides ADS-B Out only. An integral
WAAS GPS receiver that meets the ADS-B
Out position source requirements is available as an option for both transponders.
"We've known for a few years that this
dual-band product is where we wanted to
go with the technology," said Phil Straub,
Garmin vice president and managing
director for aviation. "This product has
really been designed to serve the broad
range," from early G1000 panels without
Wide Area Augmentation System GPS
to the company's current product line. It
will provide an ADS-B solution for many
integrated flight decks, he added. "Where
manufacturers are integrating it, [data]
will be displayed in an optimum fashion."
ADS-B, which uses satellites instead of
ground-based radar to determine aircraft
location, is a key technology behind the
FAA's Next Generation Air Transportation
System. The FAA has mandated ADS-B
Out equipage beginning January 1, 2020,
for operations in most airspace where a
transponder is required today.
As of February 1, 16,765 U.S. general aviation aircraft were equipped for ADS-B
Out, according to the FAA, which estimates
GA equipage at 10.5 percent to 16.8 percent
of the fleet. During January 2016, 709 GA
aircraft equipped with the technology.

106 | AOPA PILOT April 2016

Garmin's GTX 345 can display ADS-B traffic and weather
on a variety of current and legacy Garmin displays. Built-in
Bluetooth capabilities allow traffic and weather data to be
shared wirelessly with tablets running the Garmin Pilot or
ForeFlight Mobile apps. Both the GTX 345 and 335 are available
in remote-mount configurations, where they can be controlled
by a Garmin G1000 or GTN 650/750.
The new transponders' size and form factor should make
them an easy replacement for most popular transponders, including the Garmin GTX 327. The panel-mount unit is 1.65 inches tall
and has a bright, sunlight-readable digital display that includes
pressure altitude readout. It's 1.25 inches longer than a GTX 327.
"We did intentionally stay with that vertical height, knowing
there are a lot of people out there with that transponder size limitation," Straub said. A timer is built in.
Garmin said the GTX 345/335 will provide select G1000equipped aircraft, with or without WAAS capability, with an
elegantly simple path for ADS-B compliance. In a non-WAAS
G1000, for example, the GTX 345's optional WAAS GPS

GARMIN'S NEW GTX
345R remote-mount

transponder allows
the display of
ADS-B traffic on
this Diamond
DA40's G1000
multifunction display (top). The GTX
345 mounts in the
radio stack (above).



Table of Contents for the Digital Edition of AOPA Pilot Magazine - April 2016

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