Garmin GNC 355 (25kHz) GPS/COM Radio

LPV Approaches and Comm Radio, Priced for Your Aircraft
Slim, all-in-one touchscreen GPS navigator and Comm radio for Part 23 Class I/II aircraft (weighing less than 6,000 lbs) and experimental/amateur-built aircraft
Take advantage of WAAS GPS navigation with LPV approaches, which offer minimums as low as 200’ to greatly expand your operational capability
Built-in 10-watt Comm radio with 25 kHz or optional 8.33 kHz channel spacing (with GNC 355A) plus standby frequency monitoring and automatic frequency identification
Pairs with select Garmin flight displays, or integrates directly with your existing course deviation indicator (CDI) for cost-effective installation
Visualize your entire flight plan — including departures, arrivals, instrument approaches, holding patterns and more — on a rich, dynamic global moving map
Wirelessly transfer flight plans and stream weather, traffic, GPS position and backup attitude via built-in Connext® wireless technology to the Garmin Pilot™ app and more
Big capabilities come in a small package with the GNC 355 navigator. With its bright, clear high-resolution touchscreen display, you can have the advanced navigation functions you’ve always dreamed of — along with modern Comm radio capabilities. Entering flight information is a cinch, and accessing every function is fast and easy. It’s equally at home in certificated aircraft or an experimental aircraft. And it’s the same 2” height as older navigation equipment and can allow you to keep the composite legacy CDIs already in your aircraft to minimize installation cost1. That makes GNC 355 the smart, affordable way to add next-generation navigation to your favorite airplane.

Perfect Touch
The moment you power up GNC 355, you’ll see a familiar Garmin homepage on the 4.8” display, which puts the most important functions within only a few touches. Navigate to dedicated pages for the moving map, traffic, terrain, nearest airports, flight plan, procedures, waypoint information, utilities and more. With shortcuts available to the flight plan and Direct-to functions on almost every page, navigation features are usually just a tap away. Use your finger to pan and zoom on any map, traffic and terrain page. Enter waypoint data with the on-screen keyboard. And touch the home button to get you back to the main page at any time.

For added control stability in flight, a shelf across the lower edge of the display serves to steady your hand in smooth and turbulent flight conditions. And if you prefer traditional controls, the concentric knobs provide yet another way to control many of the GNC 355 navigator’s functions.

Intuitive Navigation
With GNC 355, building and modifying flight plans is simple. As you enter waypoints, our FastFind feature automatically begins searching for the nearest identifier as soon as you start typing, so — in most situations — a press or two reveals just what you were thinking. You can also create holds, insert Victor airways and corresponding exit options and add departures, arrivals and instrument approach procedures. Additionally, you can edit your route using the map screen; a handy “rubber band” feature lets you grab any leg of your flight plan route and move it to accommodate a deviation or ATC amendment to your flight plan.

A variety of dynamically drawn and displayed maps provides situational awareness and context to the flight plan by highlighting visual reporting points, navaids, SafeTaxi® diagrams and hazards such as obstacles, power lines and terrain. Plus, the Smart Airspace™ feature automatically highlights airspace close to your current altitude and de-emphasizes airspace away from the current altitude.

Powerful Comm Capabilities
GNC 355 offers 10 watts of transmission power with 25 kHz frequency channel spacing or 8.33 kHz channel spacing options (GNC 355A), and it incorporates a number of functions that can save you time and effort. Using the onboard frequency database, airport, weather, center and FSS frequencies are easy to find and can be loaded to standby by simply tapping them from the airport information or flight pages. Recent, nearby and saved frequencies are easy to access, too. And to help you make sure you are talking to the right controller, GNC 355 automatically displays the station’s identifier right below the frequency, e.g., KIXD ASOS or CHICAGO ACC.

With the standby frequency-monitoring feature in GNC 355, you won’t have to worry about missing an ATC call or other critical transmission. The GNC 355 navigator allows you to listen to ATIS without leaving your assigned ATC channel. Swap your active and standby frequencies with a single screen touch. Press and hold the frequency optional remote transfer key to automatically set the emergency frequency as your active radio channel.

Specifications
TSO applicability: C128a; 2C128; C146e Class 3; C157b Category 1; C165a; C169a Class C, E, 4, 6; 2C169a Class C, E, H1, H2, 4, 6; C195b Category B1, B3, B5, B7
Display size: 4.8″ (122.5 mm) diagonal
Display resolution: 732 pixels (W) x 240 pixels (H)
Unit bezel height: 2.02″ (51.0 mm)
Unit bezel width: 6.25″ (159.0 mm)
Unit depth with connectors: 11.23″ (285 mm) (measured from face of aircraft panel to rear of connector backshells)
Unit weight: 3.3 lbs (1.5 kg)
Maximum altitude: 35,000 ft
Input voltage range: 9 VDC – 33 VDC
Maximum display brightness: 260 fL
Operating temperature range: -20° C to 55° C (-4° F to 131° F)
Bluetooth version: 4.2
Number of GPS channels: 15 (12 GPS and 3 GPS/WAAS/SBAS)
LAT/LON position accuracy: <1.25 meter RMS horizontal, < 2 meter vertical, with WAAS
Maximum velocity: 1,000 knots (above 60,000 feet)
Position update Interval: 0.2 sec (5 Hz)