Garmin GNC 255

Panel-Mount Nav/Comm

Model (A): 010-01025-50

Model (B): 010-00999-50

GNC 255A / 10W: $3879.00

GNC 255B / 16W: $4779.00

   Add 4ft Harness: $100.00

NOTE: The GNC 255 can only be sold to experimental aircraft. Certified aircraft MUST have unit installed in our certified Garmin shop.

Panel-Mount Nav/Comm

 

"As compact as it is capable, the GNC 255 can bring powerful Nav/Comm capabilities to virtually any cockpit. Not only does the GNC 255 meet the basic needs of most pilots – including adhering to new airspace requirements in Europe – it also features a number of advanced features that save you time and effort. It also contains an internal VOR/LOC converter and 40-channel glideslope receiver.

Choose Your Installation

The GNC 255 is available in 2 versions to fit your needs. Each version comes with 25 kHz frequency channel spacing and 8.33 kHz channel spacing to meet the impending Single European Sky mandate that all aircraft in Europe will need to operate with by 2018. The GNC 255 is available with either 10 W or 16 W of transmitter output, letting you find the right balance of power and price. It includes a 2-place intercom that’s ideal for 2-seat aircraft; no additional hardware is required to communicate with your passenger. It also contains an internal VOR/LOC converter and a 40 channel glidescope receiver. Plus, remote frequency flip-flop capability can help in demanding operating environments like helicopters, letting pilots keep their hands on the controls.

Reduce Your Workload

In addition to traditional Nav/Comm features, the GNC 255 incorporates a number of functions that can save you time and effort. Provide the GNC 255 with an airport or navaid identifier and it will automatically find all available frequencies (and vice versa) thanks to a built-in, updateable database. With a compatible GPS input, the device will find the nearest airport to your location and easily access its weather, center and FSS frequencies. You'll have the confidence to know you're talking to the right controller every time. The Nav/Comm's database technology also allows you to quickly pull up your most frequently or most recently used frequencies. The device even automatically decodes a station’s Morse code to provide a positive identification – no aural decoding required.

The GNC 255 will provide distance, time and speed when installed with a compatible GPS source like our GTN or GNS series avionics. All information is displayed on a bright sunlight-readable display so you can quickly read it all at a glance. And when paired with a G500, G500H, G600 or G3X flight display, it allows for the display of VOR and ILS indications on the PFD and can follow autopilot commands. Alternatively, you can use an HSI or CDI like our MD200-306, which has been specifically designed to work with the GNC 255.

Listen to 2 Frequencies with 1 Comm

With the standby frequency-monitoring feature in the GNC 255, you won’t have to worry about missing an ATC call or other critical transmission. The GNC 255 allows you to listen to ATIS without leaving your assigned ATC channel. Swapping your active and standby frequencies is done with a single touch of a button. Pressing and holding frequency transfer key will automatically set the emergency frequency as your active radio. You can use the built-in timer to assist with approaches, holds and other assigned maneuvers.

Need night vision?
For pilots flying patrol aircraft or helicopters while using night vision goggles (NVGs) to aid visual surveillance, the GNC 255 series NAV/COMM radios are available in versions that offer NVG-compatible displays. Featuring readouts and lighting designed to suppress light waves in the red to near-infrared (NIR) spectrum, these radios screen out distracting light interference for NVG operations – while providing crisp, vivid display readability under all lighting conditions, from nighttime to bright daylight."

New series of VHF NAV/COM radios
As the replacement products for the popular SL30 and SL40 models, the GTR series COM transceivers and GNC series NAV/COM radios include a breadth of new features to reduce pilot workload, while also offering an affordable solution to meet the requirements of the 8.33 kHz channel spacing mandate recently enacted by the European Union under the Single European Sky (SES) initiative.

These products have truly reinvented the stand-alone aviation COM radio with novel features like reverse database look-up and the COM monitor function, which bring new efficiencies to cockpit radio management. Beyond that, these products demonstrate Garmin’s commitment to aviators worldwide, providing the solutions they need to meet the latest regulatory requirements in their regions, such as the recent SES mandate.

The SES mandate
The SES mandate aims to enhance safety and efficiency of air transport in Europe by tripling the number of channels available for aircraft communications. This mandate requires all European aircraft using European airspace to be equipped with 8.33 kHz radios by December 31, 2017. Select GTR and GNC models offer both 25 kHz and the 8.33 kHz operational capabilities required to comply with the law.

The GNC series NAV/COM
The GNC series NAV/COM radios offer all of the same COM features, while also adding navigation capability with VOR/ILS with Glideslope. The GNC series works well with select Garmin flight displays including the G500, G600, G500H and G3X to display the NAV indicators in the primary field of view, and can integrate with most autopilots.

The GTR and GNC series are more powerful than their SL-series predecessors with versions available with 10- or 16-watt transmit power. The GTR 225 includes 10 watts of transmit power and 25 kHz frequency spacing.

All products in the series have received the Federal Aviation Administration’s (FAA) Technical Standard Order (TSO) authorization.

Night Vision Model
Night Vision Goggle (NVG) capable COM and NAV radios. The GNC NAV/COM and GTR COM series of radios are now even better with the addition of new, NVG capable versions.

This latest edition grows our list of NVG capable products which already includes NVG specific GTN series navigators as well as G500/G600/G500H flight displays.

Performance:
Communication channels: 760 with 25 kHz spacing; 2280 channels with 8.33 kHz spacing
Frequency range: 118.000 to 136.992 MHz (with 8.33 kHz spacing
Transmit power: 10 or 16 W (optional)
Input voltage range: 9 to 33 VDC
Operating temperature range: -20 to +55 C
Certifications: TSO C169a (transmitting and receiving), TSO C128a (stuck mic)

Physical:
Dimensions: 1.65”H x 6.25”W x 10.4”D (4.19 x 15.88 x 26.42 cm)
Weight: 3.02 lbs (1.37 kg) unit only; 3.46 lbs (1.57 kg) with mounting rack
Depth: 11.23 inches (28.52 cm) behind panel, including mounting rack and connectors

GNC 255
Installation kit
Manual

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