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APPENDIX A
Specifications
PHYSICAL
Case: Waterproof to IPX7 standards
Size: 5.3 x 14.7 x 3.1 cm
Weight: Approx 9.5 ounces (269g) w/ batteries
Temp. Range: 5º to 158ºF (-15º to 70ºC)
PERFORMANCE
Receiver: 12 parallel channel, differential-ready
Acquisition Time: Approx. 15 seconds (warm start)
Approx. 45 seconds (cold start)
Approx. 5 minutes (AutoLocate™)
Update Rate: 1/second, continuous
Position Accuracy: 1-5 meters (3-17 ft.) with DGPS corrections*
15 meters (49 ft.) RMS**
Velocity Accuracy: 0.1 knot RMS steady state
Dynamics: 6g
POWER
Input: Four 1.5 volt AA batteries† or 10-32 VDC
Power Usage: 1 watt
Battery Life: Up to 36 hours (with 4 AA batteries) in Power Saver
mode‡
Internal Backup: Lithium battery
Specifications subject to change without notice.Specifications subject to change without notice.
Specifications subject to change without notice.Specifications subject to change without notice.
Specifications subject to change without notice.
* With optional DGPS input.
** Subject to accuracy degradation to 100m 2DRMS under the US DOD-imposed
Selective Availability Program.
†The termperature rating for the GPS 12 MAP may exceed the usable range of some batter-
ies. Alkaline batteries can rupture at high temperatures.
‡Alkaline batteries lose a significant amount of their capacity as temperature decreases. If
you’re using the GPS 12 MAP in below freezing temperatures, use lithium batteries for
longer battery life. Extensive use of screen backlighting will significantly reduce battery life.
The GPS 12 MAP is constructed of high-quality
materials and should not require user maintenance. If
your unit ever needs repair, please take it to an autho-
rized GARMIN service center. Never attempt any
repairs yourself. To protect your GPS 12 MAP, keep it in
a covered container or case when not in use, and never
allow gasoline or other solvents to come into contact
with the case. Clean the case and lens with a soft cloth
and a household window cleaner.