The GTR and GNC series automatically store the 20 most recently used frequencies. Plus, the radios allow for storage of up to 15 most-used frequencies such as the pilot’s home airport or other frequently visited destinations. A familiar flip-flop feature allows channels to be entered in a standby window, and then activated with a press of a button. All models also include a built-in, voice-activated two-place intercom.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 also 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, as well as 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, allowing for increased range. The GTR 225 includes 10 watts of transmit power and 25 kHz frequency spacing for $1,995. The GTR 225A adds 8.33 kHz frequency spacing for $2,995. And the GTR 225B includes 8.33 kHz spacing and 16-watt transmit power for $3,995. The GNC 255A includes 10 watts of transmit power for $4,495 and the GNC 255B includes 16 watts of transmit power for $5,495. Both GNC models include 8.33 kHz spacing. 1 All products in the series have received the Federal Aviation Administration’s (FAA) Technical Standard Order (TSO) authorization and are expected to be available in February to U.S. and global destinations accepting FAA TSO. The GTR and GNC series will be available in Europe upon European Technical Standard Order (ETSO) authorization, expected in first quarter 2013. Garmin’s aviation business segment is a leading provider of solutions to Original Equipment Manufacturer (OEM), aftermarket, military and government customers. Garmin’s portfolio includes navigation, communication, flight control, hazard avoidance, surveillance, and other products and services that are known for innovation, reliability and value.