Under the NextGen air traffic management system, all aircraft in controlled airspace will need to be equipped with Automatic Dependent Surveillance – Broadcast (ADS-B) “Out” technology before the end of 2019. For those who only fly below Class A airspace (18,000 feet) and in U.S. skies, the GDL 88 offers an affordable solution to reaching compliance. And even if you fly above 18,000 feet, the GDL 88 can still give you all the benefits of ADS-B “In” data – consider pairing it with a GTX 330/33 ES transponder for a comprehensive ADS-B “In/Out” solution.With ADS-B “Out”, the GDL 88 gathers information about your position, track and ground speed from either your existing WAAS GPS source or an optional built-in WAAS receiver. It then broadcasts this information to ADS-B ground stations over the 978 MHz Universal Access Transceiver (UAT) frequencies. This gives ATC and ADS-B “In” equipped aircraft a more precise picture of what’s happening in the sky, and allows for more safe and efficient flight routing.
Access Aviation Weather
The GDL 88 also features ADS-B “In” datalink technology that allows it to receive subscription-free Flight Information Service-Broadcast (FIS-B) weather broadcast from ADS-B ground stations on this same 978 UAT frequency. On a compatible flight display, this uplink allows you to view graphical NEXRAD radar, METARs, TAFs, SIGMETs, AIRMETs, NOTAMs, TFRs and more.
Spot Potential Traffic Threats
The GDL 88 can receive ADS-B position reports directly from other aircraft in your vicinity. Because the FAA permits ADS-B broadcasts on 2 frequencies (978 UAT and 1090 ES), the GDL 88 contains both receivers so you can see a comprehensive view of all ADS-B “Out” equipped targets. ADS-B provides the ability to provide air-to-air datalinks with other aircraft. The GDL 88 is compatible with active traffic systems and prioritizes multiple traffic inputs, removing duplicate targets by choosing the highest integrity source available.
ADS-B “In” technology also allows the GDL 88 to receive Traffic Information Service-Broadcast (TIS-B) information. On a compatible display, TIS-B allows you to view the same dynamic traffic picture that ATC ground controllers are seeing.
Eye in the Sky
Built to meet the unique and stringent demands encountered by helicopter operators, the GDL 88H offers ADS-B “Out” solutions while also providing safety enhancing ADS-B “In” benefits specifically for helicopters. As part of our Terminal Safety Solutions, TerminalTraffic for helicopters helps you identify potential traffic conflicts by minimizing nuisance alerts from fixed-wing aircraft and abbreviating select alerts while performing unique helicopter maneuvers such as hovering. And when paired with our GTN series touchscreen navigators, On Scene mode reduces nuisance alerts when you’re intentionally operating in close proximity to other helicopters, such as during electronic news gathering, alerting you only when new threats are present.
Avoid Upgrading More Than You Have To
ADS-B requires your ADS-B “Out” source must squawk the same code as your transponder. Patented AutoSquawk allows the GDL 88 to be compatible with a wide range of general aviation transponders — synchronizing squawk code and ident to eliminate the need to install a dedicated UAT control panel with older transponders.
Stream Weather and Traffic to Your iPad®
The optional Flight Stream wireless gateway device provides the means to uplink and display subscription-free U.S. ADS-B weather and traffic on your tablet using Garmin Pilot, ForeFlight Mobile and aera 796/795¹. On the weather side, you can view animated NEXRAD imagery, METARs, TAFs, winds and temperatures aloft, PIREPs, NOTAMs and more. Plus, on the traffic side, your device can display moving target symbols and alerts to help you recognize any potential conflict scenarios in busy airspace.
Expand Your Options with Industry Support
The GDL 88 also supports some ADS-B “in” features on a wide range of other cockpit displays. That means you’ll see TIS-A traffic on G1000 integrated flight decks and some third-party navigators that support the published legacy GDL 90 protocol, as well as FIS-B NEXRAD radar and METAR weather.
Enhance Your Reception
Available antenna options allow the performance of the GDL 88 to be optimized for any type of aircraft. For optimal performance, a diversity antenna version with both top- and bottom-mounted antennas enhance the detection of traffic both above and below, and works to minimize radio blind spots caused by the wings or fuselage during aircraft maneuvering. This is especially useful in maintaining optimal reception of ADS-B weather and traffic during ground operations. A basic bottom-mount antenna version is also available as a more cost-effective alternati