USGlobalsat EM-406a User Manual
Page 3
EM-406a
Specifications are subject to be changed without notice.
Page 3 of 13
Version 1.4.1
Sensitivity -159dBm
Cold Start
42 seconds average
Warm Start
38 seconds average
Hot Start
8 second average
Reacquisition
0.1 second average
Accuracy
Position: 10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity: 0.1 ms
Time: 1
µs synchronized to GPS time
Maximum Altitude
18,000 meters (60,000 feet) max
Maximum Velocity
515 meter/second (1000 knots) max
Maximum Acceleration
4G
Datum WGS-84
Jerk Limit
20m/sec **3
Interface
I/O Connector Type
External Antenna Port
Physical Characteristic
Dimensions
1.2” x 1.2” x 0.4” (30mm x 30mm x 10.5mm)
DC Characteristics
Power Supply
4.5V~6.5V DC Input
Backup Voltage
+2.5V to +3.6V
Power Consumption
44mA (Continuous Mode)
25mA (Trickle Power Mode)
Backup Current
10uA typical
Environmental Range
Humidity Range
5% to 95% non-condensing
Operation Temperature
-40F to +176F (-40C to 85C)
Differences between the EM-406 and EM-406a:
a.) RoHS lead-free
b.) 1 PPS added to pin #6