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