4. Artex has determined that there are no additional failure modes or hazards introduced by use of the non-TSO function.
Inputs and outputs are protected against electrostatic discharge (ESD) and connections to +28V or ground. If a terminal is inadvertently misconnected or a wire shorted, the ME406P will operate normally after the condition has been corrected. The RF output is through a single BNC connector.
All functions of the ME406P are under microprocessor control. A self-test routine checks ELT operation and installation, then presents the results as visual and auditory ‘error codes’ to aid in troubleshooting and to indicate status. Software is approved per the requirements of RTCA/DO-178B for Level D software.
The battery pack consists of two D-size, lithium cells mounted in a cover assembly, and is field replaceable. Rated life is 6 years or one hour of use, which ever comes first, as specified by FAR 91.207(c).
Installation kits are available that contain all major components needed to install the beacon.
1.4 Certification
The ME406P (453-6611) is certified to the following:
. TSO C126
. TSO C91a in the 121.5/406 MHz configuration as referenced in TSO-C126, paragraph (e).
. ETSO Approvals
. FAR Part 91 – mandatory automatic ELT requirements
. COSPAS-SARSAT T.001 and T.007
. 47 CFR Part 87 (FCC requirements)
Note: Per FCC regulations 47 CFR § 2.902, the ELT is tested per “Verification” method, the FCC does not issue certificates for ELTs. The FCC identifier grantee code for Artex is H4K.
. Transport Canada
. Industry Canada (IC:121.5B-ME406AF)
1.5 Programming
The ME406P is pre-programmed at the factory using a short message format. The following User Protocols are supported:
. Serial Number
. Tail Number
. 24-Bit Aircraft Address
. Aircraft Operator Designator/Serial Number.
The ME406P does not currently support long message format or Location Protocols. For a complete discussion of ELT programming protocols please see COSPAS-SARSAT Documents G.005 and T.001 available at www.cospas-sarsat.org.
The US accepts the above listed protocols. For use outside of the US, contact your local civil aviation authority for accepted or required programming protocols.
Figure 1 - ME406P Installed View
Warning:
The AP Antenna P/N 110-775 may not be used on any ELT except the ME-406P (453-6611).
The ELT is NOT buoyant, and must be attached to a floatation device when in water environments.
Failure to observe this warning may cause the ELT to fail when it is critical for it to operate. Such failure may cause loss of life.
1.6 Operation
In the event of a crash, the ME406P activates automatically (automatic fixed “AF” configuration), and transmits the standard swept tone on 121.5 MHz lasting until battery power is gone. This 121.5 MHz signal is mainly used to pinpoint the beacon during search and rescue operations.
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