A06_Specifications.doc

Salient Characteristics

Hemisphere A-222 Smart Antenna Brand Name or Equal This equipment will be used with Acoustic Doppler Current Profiler (ADCP) systems for discharge monitoring in rivers and streams throughout the US.

GPS Sensor Specifications

· Receiver Type: L1, GPS

· Channels: 12-channel, L1CA GPS, L1P GPS

· GPS Sensitivity: -142 dBm

· SBAS Tracking: 3-channel, parallel tracking

· Update Rate: 10 Hz, with option for 20 Hz

· Horizontal Accuracy: RMS (67%), 2DRMS (95%)

· Pitch/Roll Accuracy: 1 degree using tilt sensor

· Satellite Reacquisition: < 1s

Communications

· Serial Ports: 2 full duplex RS232, CAN

· Baud Rates: 4800-115200

· Data I/O Protocol: NMEA 0183, NMEA 2000, Hemisphere GPS binary

· Correction I/O Protocol: Hemisphere GPS proprietary, RTCM v2.3 (DGPS), RTCM v3 (RTK), CRM (RTK)

· Timing Output: 1 PPS CMOS, active high, rising edge sync, 10k ohm, 10pf load

· Event Marker Input: CMOS, active low ,falling edge sync, 10k ohm, 10pf load

Environmental

· Operating Temperature: -40 deg/C to +70 deg/C

· Humidity: 95% (non-condensing)

· Enclosure: IP67 Power

· Input Voltage: 7-36 VDC

· Power Consumption: < 3W @ 12 VDC typical

· Reverse Polarity Protection Mechanical

· Dimensions: 4.1” H by 5.7” D

· Weight: less than 20 oz.

· Antenna Mounting:1-14UNS-2A female, 5/8-11 UNC-2B adapter Default Settings for Data Output: All units shall be configured to the following data output settings prior to delivery:

Baud rate: 115,200 GGA: 10 Hz VTG: 10 Hz ZDA: 1 Hz Turn off all other messages