The GTN-625 is the WAAS GPS version of the GTN-650. Next-generation computer power (compared with the GPS-400W) provide considerable enhancements to the Multi-Function Display (MFD) capabilities, especially when paired with an ADS-B In Receiver.

Most of the GTN-625's features, including a high-resolution moving map, graphical flight planning, terrain avoidance, traffic alerts, weather information, and taxiway diagrams, are made possible by the larger 4.9" color display with a touch interface.

The GTN-625 has a significantly larger and higher-resolution display than the GPS-400W. It has a "pinch and zoom" touch interface, similar to a smartphone. (Some pilots love the touch interface, and others miss the traditional buttons and knobs.) Raised bezels offer a physical connection to "anchor" the pilot's hand during operation.

The GTN-625 includes a tremendous amount of capability, and these are only the highlights. (Please send us an email if you would like the Pilot's Guide, and we will be happy to send you a copy for your review.)

Navigation

The GTN-625 will allow WAAS-GPS-enabled precision IFR LPV approaches.  There are thousands of FAA-approved LPV WAAS approaches, with more being added regularly. The FAA's stated goal is to have a WAAS approach available for every public runway at least 3,200 feet long. To see if the airports you use offer WAAS capability, please click here for the FAA's information about GPS/WAAS Approaches.

One of the admired features of the CNX-80/GNS-480 is the ability to navigate with Victor airways. The GPS-400W lacks this feature, but it is present in the GTN-625.

Even when flying VFR, the GTN-625 can create a virtual precision approach, with vertical guidance. The keys to safety are consistency and precision, and this feature allows you to treat a VFR approach like an IFR approach.

Multi-Function Display (MFD)

The GTN-625 has a high-resolution Moving Map, capable of showing Topographical features, Victor Airways, Terrain (color-coded relative to your current altitude), Weather Radar, WX-500 Stormscope Lightning (if equipped), and Traffic. Please note that Terrain and Weather Radar information cannot be shown at the same time. Both types of information are color-coded according to the relative threat, and it would be confusing to see "red" same-altitude terrain and "red" high-intensity precipitation at the same time.

Traffic information is available on a dedicated page. But if you are viewing other information on the MFD, a pop-up window will still bring traffic information to your attention.

It is possible to "pan" the map to a different region simply by dragging your finger across the display, much as you would a smartphone or tablet.

Garmin's SafeTaxi database is available to show runways, taxiways, FBOs, and hangars on the display. This boosts safety by allowing the pilot to ensure they are following the Ground instructions. (It also makes it more difficult to get lost at an unfamiliar airport!) The MFD will also show "Hot Spots", which are confusing or complicated areas where extra care is needed for safety.

If you also have ADS-B In, the GTN-625 can display up to 60 traffic targets with both audio and visual alerts. Subscription-free ADS-B In weather information includes NEXRAD radar, graphical AIRMET, Winds & Temperature Aloft, Lightning, Turbulence, Icing, Cloud Tops, and much more.

Convenience

The GTN-625 feels similar to the GPS-400W in operation, but a "flattened" menu structure makes it faster and easier to reach the function you need.

If you have a second GTN-series radio, or a GNS-430W / GNS-530W, they are able to communicate and share the active flight plan.

The GTN-625 will show you the entire planned flight on the moving map. When the inevitable changes are introduced, the "rubber band" feature allows you to drag any segment of your route to match the new clearance.

As a WAAS GPS, the GTN-625 is able to serve as the position source for your ADS-B Out solution.

The GTN-625 has the ability to control a remotely-mounted Transponder, saving space in your radio stack.

The GTN-625 is very flexible, and may be used with these Glideslope Indicators, HSIs, and Glass Panels (the Garmin units are the official choices):

• Garmin GI-106A GPS/VOR/LOC/Glideslope Indicator
• Garmin GI-106B GPS/VOR/LOC/Glideslope Indicator
• Mid-Continent MD200-306 GPS/VOR/LOC/Glideslope Indicator
• Mid-Continent MD200-706 GPS/VOR/LOC/Glideslope Indicator
• Collins IND-351A GPS/VOR/LOC/Glideslope Indicator
• King KI-204 VOR / LOC / Glideslope Indicator
• King KI-206 GPS/VOR/LOC/Glideslope Indicator
• King KI-209 VOR / LOC / Glideslope Indicator
• King KI-209A GPS/VOR/LOC/Glideslope Indicator
• King KNI-520 GPS/VOR/LOC/Glideslope Indicator
• King KI-525/525A HSI (part of a KCS-55/55A system)
• Century NSD-360A Slaved Compass System (HSI)
• Sandel SN-3308 Electronic HSI (EHSI)
• Garmin G5, G500, G500H, G500 TXi, G600, G600 TXi, or G3X Glass Panels

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