Model:A222 GNSS Smart Antenna
GNSS Receiver Specifications
Receiver Type: Scalable dual-frequency,
multi-GNSS RTK Signals Received: GPS and GLONASS
Channels: 114
GPS Sensitivity: -142 dBm
SBAS Tracking: 3-channel, parallel tracking
Update Rate: 10 Hz standard, 20 Hz optional (with
 activation)
Timing (1PPS) Accuracy: 20 ns
Cold Start: < 60 s typical (no almanac, ephemeris,
 position, or RTC)
Warm Start: < 30 s typical (almanac and RTC)
Hot Start: < 10 s typical (almanac, ephemeris, position,
 and RTC)
Maximum Speed: 1,850 kph (999 kts)
Maximum Altitude: 18,288 m (60,000 ft)
Positioning Accuracy
Horizontal Accuracy: RMS (67%) 2DRMS (95%)
   RTK: 1,2 8 mm + 1 ppm 15 mm + 2 ppm
   L-Band: 1,3 0.08 m 0.16 m
   SBAS (WAAS): 1 0.3 m 0.6 m
   Autonomous, no SA: 1 1.2 m 2.5 m
L-Band Receiver Specifications
Receiver Type: Single Channel
Channels: 1530 to 1560 MHz
Sensitivity: -130 dBm
Channel Spacing: 5.0 kHz
Satellite Selection: Manual and Automatic
Reacquisition Time: 15 seconds (typical)
Communications
Serial Ports: 2 full-duplex RS-232, CAN 4
Baud Rates: 4800-115200
Correction I/O Protocol: Hemisphere GNSS proprietary, RTCM v2.3
 (DGPS), RTCM v3 (RTK)
Data I/O Protocol: NMEA 0183, NMEA 2000, Hemisphere GNSS
 binary
Timing Output: 1PPS, CMOS, active low, falling edge sync, 10
 kΩ, 10 pF load
Event Marker Input: CMOS, active low, falling edge sync, 10 kΩ, 10
 pF load