Garmin has introduced two new distance measuring equipment (DME) systems for aircraft: the GDM 4500 and GDM 450R. These are remote-mount radios designed to help pilots get distance information from ground-based DME stations.
The GDM 450R is meant for general aviation aircraft and works with Garmin flight displays. It lets pilots tune two DME stations at once and can hold the distance information even when the radio frequency changes. With additional features, it can also scan and use more DME signals to support RNAV navigation. It connects easily with older equipment too.
The GDM 4500 is built for turbine aircraft and helicopters. It has stronger protection against environmental conditions and supports more advanced systems through ARINC 429. It includes features like multi-station scanning and navigation using multiple DME sources.
Both models offer a way to update older systems and support modern navigation needs without replacing full avionics suites.
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