3) Low humidity in the air allows static charges to build up easier than when the humidity is high. On days when static sparks are frequently experienced and no facilities are available (ground strap, grounded work bench, etc.), do not attempt to replace the battery.  

6. Specifications

6.1 Operating Frequencies  406.028 or 406.037 MHz +/- 1 kHz (consult product label for frequency);
Modulation:  Bi-phase L (emission designator G1D)
121.5 MHz +/-6.075 kHz
Modulation:  AM (emission designator A3X)

6.2 Output Power 406 MHz:  37 dBm ± 2 dBm (3.2W Min to 7.9 W Max) (440 ms / 50 sec period) PERP or EIRP for 24 hours @ -20oC to +55oC 
121.5 MHz:  >/= 17.0 dBm (50mW Min) PERP for 50 hours @ -20oC to +55oC or >/= 20.0 dBm (100mW Min) EIRP for 48 hours @ -20oC to +55oC

6.3 Activation

Crash sensor (G-switch) velocity change of 4.5 ft/sec (2.3 Gs) 
NOTE:  The crash activation level specified by RTCA/DO-204 §2.2.3 is 3.5 ft/sec (2.0 Gs); Artex has specified the higher threshold of 4.5 ft/sec (2.3 Gs) in accordance with Eurocae ED-62.  The use of the 4.5 ft/sec (2.3 Gs) crash sensor has been approved by the FAA as a deviation (FAA Reference # 98-130S-108, dated February 6, 1998).
5 Auxiliary G-switches activate at 12 Gs in addition to the main G-switch for the ME406P.
NOTE:  It is possible that either the primary or the 5 auxiliary G-switches may activate as the result of a very hard landing of a fixed or rotor wing aircraft.
6.4 Temperature Storage:  -55oC to +85oC
Operational:  -20oC to +55oC

6.5 Input Power ELT:  none
Remote Switch:  +28VDC, 30 mA (max) or +14 VDC, 30 mA (max)
The remote switch will function without aircraft power but the LED requires voltage.

6.6 Mechanical Characteristics Vibration:  10 Gs, 5Hz to 2000Hz
Shock:  500 Gs for 4 ms
Crashworthiness:  100 Gs for 23ms
Humidity:  95% for 50 hours
Penetration:  55 LBS from 6 inches
Crush:  1,000 LBS

6.7 Electrical Characteristics Spurious Emissions per CFR 47 Part 87 for 121.5 MHz; per RTCA/DO-204 for 406 MHz
Impedance:  50 ohms (nominal) at 121.5/406 MHz

6.8 Coax Type:  RG-142 (MIL-C-17) or equivalent
Connectors:  BNC

6.9 Software

RTCA/DO-178B, Level D
6.10 Weights

Part Number 
 Description
 Weight
 
453-6611
 ME406P ELT (w/ Battery)
 2 LBS 1 oz (936 g) Maximum
 
452-6499 (must be ordered as kit # 455-0012)
 Battery Pack
 12 oz (340g) Max
 
452-3075
 Mounting Tray
 3.5 oz (100 g) Max
 
110-775
 Portable Antenna
　
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