ZYM-GMB21-3
4 of 4
3. Technical Specifications
3.1. Electrical Characteristics
3.1.1 General
1). Frequency
：
L1, 1575.42 MHz.
2). C/A code
：
1.023 MHz chip rate.
3). Channels
：
20
3.1.2 Accuracy (Open Sky)
1). Position: <10m 90% no SA.
2). Velocity: 0.1 m/sec no SA.
3). Time: 1 second synchronized GPS time
4.1.2 Accuracy (Open Sky)
1). Position
：
10 meters, 2D RMS.
2). 7 meters 2D RMS, WAAS corrected.
3). 1-5 meters, DGPS corrected.
4). Time 1 microsecond synchronized to GPS time.
3.1.3 Acquisition Rate (Open sky, stationary requirements)
1). Hot start
：
1 sec., average.
3). Warm start
：
38 sec., average.
4). Cold start
：
48 sec., average.
3.1.4 Dynamic Conditions
1). Altitude : 18,000 meters (<60,000 feet) Max
2). Velocity
：
736 m/s (<1,000 knots) Max
3). Acceleration
：
4 G, Max
4). Jerk
：
20 meters/second, Max
3.1.5 RF interface
1). Minimum signal tracked: -159dBm
3.1.6 Bluetooth performance
1). Bluetooth Spec v2.0+EDR Complian.
2). Class 2 type Output Power
