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Specifications are subject to change without notice.
Options of higher altitude and velocities up to 25,000 nautical miles
per hour are available in the U.S. and under validated export license
from other countries.
Note: While Ground Guard™ does make navigational procedure
quicker and easier, it is not intended to replace normal navigational
practices. No amount of electronic hardware can replace solid navigation
knowledge and prudent judgment. Chart disk files are digitized from official
government agency charts. However, EMS, Inc. assumes no liability for
inaccurate chart notations or possible damage or injury incurred while
using this product. Ground Guard™ uses EMS Chart Viewer database.
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| Operating Temperature |
+5C to +40C
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| Non-operating Temperature |
-20C to +50C |
| Operating Humidity |
20% to 80% non-condensing |
| Non-Operating Humidity |
10% to 90% |
| Salt Exposure |
Passes MIL-T-28800 paragraph 4.5 6.2 |
| Water Resistance |
Splash-proof and drip-proof per MIL-T-28800 |
| Vibration |
1.5G, 10-100Hz |
| Shock |
5G peak |
| Position with SA off Real-Time |
25 rms |
| Differential Position |
1-3 rms (PDOP<4) |
| Velocity |
1 CM/Sec (PDOP<) (0.02 Knots) with SA off |
| Update Rate |
Once per second |
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| Size
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14.6"W x 10.6"H x 5.9"D |
| Weight |
11 lbs. |
| Display
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640 x 400 pixel, backlit LCD size 9" x 5-3/4" |
| Keypad
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One piece backlit silicon rubber elastomeric keypad with conductive rubber contacts |
| Case
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Hi-impact, injection molded, ABS plastic O-ring and gasket seals |
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| Power Supply
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10 to 20V DC, 12 Watts
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| Batteries
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Backup: 3V DC, 1.8 AH, Lithium
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| Time to First Fix
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Cold Start: 90 seconds
Warm Start: 30 seconds
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| Speed (max)
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Does not exceed 1,000 NMPM |
| Altitude (max)
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Does not exceed 60,000 ft.
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| Beacon Receiver
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Single and Dual Channel
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| AM
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100-200 baud
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| FM
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400 baud
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| Disk
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3-1/2", 1.44Mb formatted floppy disk
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| Charts
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Up to 20 charts/disk plus chart index
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| RD/WR Chart Data
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100 to 400 user-defined Nav Aids with text, 30 courses (planned, auto pilot, DR plot) and 99 waypoints each
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| Chart Projection
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North-up Mercator projection, 1/1,000 to 1/5,000,000
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| Chart Scale
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10 zoom levels per chart
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