The Artex C406 N HM ELT is an automatic fixed‑type emergency locator transmitter for helicopter applications. It transmits on 121.5, 243 and 406 MHz and automatically activates in a crash, sending both swept‑tone analog signals and an encoded 406 MHz digital message. The single BNC output is paired with a multi‑axis G‑switch and the unit can connect to aircraft navigation systems for embedded position data.

C406 N HM Features

Automatic fixed ELT for helicopters with single BNC output
Transmits on 121.5, 243.0 and 406 MHz; sends both swept‑tone and digital messages
Multi‑axis G‑switch triggers automatic activation; can connect to aircraft nav systems
Capable of custom programming with optional adapter

Artex C406-N HM ELT