Ameri-King АК-451-Series User Manual
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Arnav Systems Inc.: 
 
• R50, R50i, STAR 5000, FMS 5000, MFD (Multi-Functional Display). 
 
II Morrow: 
 
• FLYBUDDY, 2001 NMS 
 
Trimble Nav Inc.: 
 
• NAV 1000, NAV 2000, TNL 2100, and TNL3100. The following Trimble systems 
all require a RS-422 to RS-232 adapter: NAV 3000, TNL 1000, TNL 2000, TNL 
2000A, TNL 3000, 2000 APPROACH, 2000 APPROACH PLUS, 2101 
APPROACH, 2101 APPROACH 
PLUS, 2101 I/O APPROACH, 2101 I/O APPROACH PLUS. 
 
ENVIRONMENTAL TEST SPECIFICATIONS: 
 
• 
RTCA DO-204A; DO-183
•
TSO-C126/C91a, RTCA DO-160E ENV. CAT.: F1XBA (204/183)
(204/183)XR(204/183)XXSXXXXAC(204/183)BXXXX
(204)
 
• 
TEMP. AND ALTITUDE:
Category F1
Low Temperature: -20°C
Operating;
-55°C
Storage.
High Temperature: +55°C
Operating;
+85°C
Storage.
•
OPERATING LIFE:
5W @ 406.208 MHz for 24 hrs @ 20°C
50mW @ 121.5 MHz
50mW @ 243.0 MHz 
(Minimum Requirement throughout a 50 
hour period at –20°C) 
•
TEMP VARIATION:
Category B, 10°C minimum per minute
•
HUMIDITY:
Category A, 95% RH, 50 hours 
operating 
•
SHOCK: 500G,
4
±
1msec
•
IMPACT:
Penetration of 55 lbs mass, 6 drops, 4 
surfaces 
•
CRUSH:
1000
lbs,
4
surfaces
•
VIBRATION:
10G, Sinusoidal, (5-2000) Hz, 3 axes
•
WATERPROOF:
Category R, 15 minutes Spray, 6 sides
•
IMMERSION SALT WATER:
Category S, 24 hours Immersion, 160 
hours at + 55°C 
•
SALT SPRAY:
Category S, 48 hours exposure to the 
Salt Fog, and 48 hours drying 
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Figure 1: Front view of ELT
Figure 2: 3-D view of ELT