Garmin has updated the software for GTN touchscreen avionics, and new capabilities include the ability to display weather radar, new ADS-B features, worldwide connectivity with the GRS 56 Iridium datalink system, cross fill between the GTN and GNS 430W/530W, geo-referenced FliteCharts and support for Telligence voice command and 3-D audio. The new software is available free for owners of GTN systems starting in the fourth quarter, although dealers may charge for installation.
For radar-equipped aircraft, the GTN 750 can not only display radar images from the Garmin GWX 68 or GWX 70 radars, but pilots can also adjust tilt or sector scan via the GTN 750’s touchscreen. Garmin offers optional Arinc 708 interface support for other radar types.
The GTN system can be paired with a GDL 88 ADS-B datalink, which meets the FAA’s 2020 ADS-B out mandate and provides subscription-free weather and ADS-B traffic data. The GDL 88 is a dual-link system, meaning it can receive ADS-B in data on both 978 and 1090 MHz, thus delivering traffic information from large and small aircraft. Garmin’s ADS-B solution includes TargetTrend relative-motion technology, which shows the trend of the traffic relative to the aircraft’s direction of flight, according to Garmin. Pilots can touch airborne traffic symbols to view closure rate and groundspeed. Ground traffic equipped with ADS-B out capability is displayed on Garmin’s SafeTaxi airport diagrams using the company’s Surf technology.
With a GMA 35 remote audio panel installed, GTN users can use Telligence voice command to control the audio panel. “For example,” according to Garmin, “by simply pressing a push-to-command button on the yoke and saying ‘com one,’ the pilot can select the radio, without lifting a finger from the controls.” The 3-D audio feature helps pilots focus on a single talker when there are other conversations on the radio, by “spatially” separating the incoming audio.