Core Viewpoint - Garmin has introduced new Distance Measuring Equipment (DME) products, the GDM 4500 and GDM 450R, aimed at modernizing navigation capabilities for various aircraft types [1][2][7]. Product Overview - The GDM 4500 is designed for turbine aircraft and helicopters, featuring environmental hardening and compatibility with third-party systems via ARINC 429 support [4][7]. - The GDM 450R is tailored for Part 23 general aviation aircraft, allowing pilots to tune two separate DME frequencies and maintain active distance indications [3][7]. Features and Capabilities - Both DME products enable pilots to track two separate DME stations simultaneously and can automatically scan up to three additional DME frequencies with compatible Garmin avionics [1][3]. - The GDM 450R supports legacy databus connections for integration with older navigation systems, while the GDM 4500 includes standard features like Free Scan capability and DME-DME navigation [3][4]. Market Context - The introduction of these DME solutions responds to the growing interest among aircraft owners for alternative navigation sources, aiming to modernize existing aircraft capabilities [2][7]. - Garmin positions itself as a leading provider of aviation solutions, continuously innovating to meet the needs of general aviation, business aviation, and other sectors [6][7]. Availability - The GDM 4500 and GDM 450R are expected to be available in the third quarter of 2025 [5].