
C406-1
The Artex C406-1 transmits on all 3 emergency frequencies
(121.5/243.0 and 406 MHz). The ELT automatically activates during a
crash and transmits the standard swept tone on 121.5 and 243.0 MHz.
It also transmits a 406 MHz encoded digital message to the
Cospas/Sarsat satellite system, which allows for rapid
identification and reduces Search and Rescue response time.
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C406-2
The Artex C406-2 transmits on all 3 emergency frequencies
(121.5/243.0 and 406 MHz.) The ELT automatically activates during a
crash and transmits the standard swept tone on 121.5 and 243.0 MHz.
It also transmits a 406 MHz encoded digital message to the
Cospas/Sarsat satellite system, which allows for rapid
identification and reduces Search and Rescue response time.

C406-N
The Artex C406-N ELT is a single output ELT that incorporates
the 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.

B406-4
The B406-4 has been modified to interface with Boeing's Master
Caution System in conjunction with the DZUS mounted cockpit remote
panel (P/N 453-0161) for the B737 and is furthermore approved for
use on all models of the B747, B757, B767 and B777.