ELT Maker Eases 406-MHz Frequency Transition | Aviation International News

ELT Maker Eases 406-MHz Frequency Transition

Artex is currently offering rebates to customers who replace their aging, obsolete 121.5/243 MHz frequency emergency locator transmitters.

By Curt Epstein • Business Aviation Services Editor

May 29, 2019

Safety and emergency equipment manufacturer ACR Electronics’ subsidiary Artex is advising customers to upgrade their aging, non-satellite-compatible 121.5/243 MHz emergency locator transmitters (ELT). The move is in response to an FCC rule that took effect this year prohibiting the manufacture, importation of, or sale of 121.5-MHz ELTs in the U.S. Satellite monitoring of those earlier frequencies was largely discontinued a decade ago, in a switch to the stronger 406-MHz frequency.

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