Garmin GTX™ 335 - 010-01214-01

All-inclusive 1090 MHz ADS-B “Out” Transponder Solution

• Satisfies NextGen equipage requirements for ADS-B “Out”
• 1090 MHz output enables aircraft to operate at any altitude, in airspace around the globe
• Combines Mode S Extended Squitter (ES) transponder and optional WAAS/GPS position source¹ in a single unit
• Useful display features include flight time, count-up and count-down timers, plus current pressure altitude readout
• Easy replacement for your existing transponder, with common 1.65-inch tall form factor

For aircraft operators looking to satisfy the ADS-B “Out” equipage rules as quickly and cost-effectively as possible, the Garmin GTX 335 ES transponder offers the ideal one-box, one-swap solution. It’s optionally available with a built-in WAAS GPS position source¹ – so everything needed to meet compliance standards for a certified ADS-B “Out” solution can be provided with this simple all-in-one package installation.

The Inside Track to ADS-B “Out”

With more fielded ADS-B solutions than any other brand in the industry, Garmin is committed to making the transition to NextGen airspace as simple and straightforward as possible. The IFR-certified GTX 335 is a prime example. It looks and operates like a standard Mode S transponder. It fits in the same 1.65-inch high slot in your avionics stack. It boasts a digital display, a pressure altitude readout, and dedicated pushbuttons numbered 0-9 for quick and easy squawk code entry. Plus, it’s an all solid-state design, which makes for lower power consumption and enhanced reliability, compared to earlier-generation transponder technology. What’s more, the addition of 1090 MHz ADS-B “Out” transmission capability (using precise GPS-referenced positioning information) enables the GTX 335 to automatically output more accurate, and more useful, traffic surveillance data to ATC – including aircraft flight ID, position, altitude, velocity, climb/descent, and heading information. Conventional Mode S and Mode C transponders can only broadcast altitude and squawk code – which means they require ground-based radar to correlate and identify the aircraft’s position on the controller’s radar screen.

Altitude Encoding Made Simple

In addition to its WAAS-enabled position reporting capabilities, the GTX 335R can also be paired with an optional Garmin altitude encoder to satisfy data transmission requirements for IFR. As opposed to other transponders with altitude encoding built in, the Garmin altitude encoder mounts separately on the install rack. So, should the transponder ever require removal, there’s no need for the static line to be disconnected. Which, in turn, eliminates the need for a follow-on leak check, and thus helps minimize ongoing service costs.

Remote mount versions require a compatible display to control transponder modes and squawk code entry.

For aircraft without a compatible ADS-B positon source, select versions are available with an integrated WAAS GPS.

Diversity versions use two antennas — mounted on the top and bottom of the aircraft — to provide superior operational coverage