C406-N HM

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406 MHz Emergency Locator Transmitter

Model Number: 453-5061

The Artex C406-N HM ELT is a single output ELT that incorporates latitude/longitude information from the aircraft navigation system. All 3 emergency frequencies (121.5/243.0 and 406 MHz) utilize the same RF output, which requires only 1 coax cable to connect to the new series of Artex single input antennas. The ELT automatically activates during a crash and transmits the standard swept tone on 121.5 and 243.0 MHz. Every 50 seconds for 520 milliseconds (long message protocol), the 406 MHz transmitter turns on and transmits an encoded digital message to the Cospas/Sarsat satellite system.

More Information

By use of an optional programming adapter, the ELT can also be programmed with the aircraft's 24-bit address for fleet operators as well as other custom programming. The C406-N HM ELT is available for helicopter (HM) applications with a multi-axis G-Switch. 

 How A Rescue Works

ARTEX ELTs are the choice of rotorcraft aircraft including Sikorsky, Airbus Helicopters, AgustaWestland and Bell.



Model C406-N HM (Helicopter Model)
Antenna Options Available Rod: 110-338, Blade: 110-340
Operating Frequencies 406 MHz, 121.5 & 243. MHz +/- 0.005% (A3X)
Ouput Power 406 MHz: 5 W (520 ms / 50 sec) for 24 hours @ -20°C to +55°C, 121.5/243.0 MHz: 100 mW min (+20 dBm) for 50 hours @ -20°C to +55°C
Output Connector BNC Female (121.5/243.0/406 MHz)
Activation Automatic by 4.5 feet per second (2.3G) Primary G-Switch, or 12.5 G (+/- 1 G) 5-Way HM G-Switch or Manual Activation
Battery 5-year Lithium (LiMnO2, solid cathode), Replacement Battery Part No. 452-0133
Temperature Certified to: Operating: -20°C to +55°C, Storage: -55°C to +85°C
Self Test G-Switch Enabled, 406 MHz Power, Antenna/Coax Connection, Position Data Present, Low Battery
Remote Switch ON/ARM
Weights (with tray) ELT Transmitter: 3 lb 5.8 oz Max (1.53 kg), Mounting Tray: 7 oz (200 g), Total Weight: 4 lb 11 oz (2.02 kg)
Measurements ELT Transmitter with mounting hardware installed 11.74” (298 mm)L x 3.9: (99 mm)H x 3.82” (97 mm)W


ELT Kit Number Antenna Remote Switch & Accessories Manuals / Approvals / Downloads
C406-N HM Pack List 455-5061 455-6196
Pack List
C406-N HM Pack List 455-5064 110-338 (white) and 110-338-01 (black)
Pack List


Warranty Length: 30 months from date of installation of the Goods on Buyer's solution. 24 months from the date of dispatch of Goods by the Supplier

Warranty coverage is effectively extended from previous warranties offered on Artex products. To qualify for warranty coverage, a customer must do one of two things.

1) Provide the original packing list from Artex with a shipping date on it. The warranty period expires 24 months from the date shipped on the packing list.

2) Provide proof of installation date (Logbook entry, signed copy of the FAA form 337 the ELT was installed under, or other documentation stating such).

If the customer is unable to provide either methods of documentation, the warranty will apply for 24 months from date of manufacture listed on the ELT product label, with a 6 month installation grace period - effectively 30 months.

For any inquiries regarding warranties, feel free to contact Artex products technical support at: artexsupport@acrartex.com or by phone at USA 954-981-3333.

Online Warranty Form

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