Receiver:  Differential-ready 12 parallel channel receiver tracks and uses up to twelve satellites to compute and update a position.

Acquisition Times: 

• 15 seconds warm (all data known)
• 45 seconds cold (initial position, time and almanac known, ephemeris unknown)
• 5 minutes AutoLocate (almanac known, initial position and time unknown)
• 5 minutes search the sky (no data known)

• Position accuracy:
• Differential GPS (DGPS): 5 meters RMS
• Non-differential GPS: 15 meters RMS (100 meters with Selective Availability at maximum)

Velocity accuracy:   0.1 m/s RMS steady state (subject to Selective Availability)

Dynamics:  999 knots; 6g's

Interfaces: 

• Dual-channel RS-232 compatible with user-selectable baud rate (1200, 2400, 4800, 9600)
• NMEA 0183 version 2.0 ASCII output (GPALM, GPGGA, GPGSA, GPGSV, GPRMC, GPVTG, PGRME, PGRMT, PGRMV, PGRMF, LCGLL, LCVTG)

• Initial position, date, and time (not required)
• Earth datum and differential mode configuration command, almanac
• PWR_DN power down power management under logic level control
• Real-time differential correction input (RTCM SC-104 format)

Outputs: 

• Position, velocity, and time
• Receiver and satellite status
• Differential reference station ID and RTCM data age
• Geometry and error estimates
• Raw measurement output for both pseudorange and phase data
• PPS (pulse per second) output

Size:  1.83" (w) x 2.75" (l) x 0.45" (h) (46.5 mm x 69.9 mm x 11.4 mm)

Weight:  1.3 oz., (38 g), not including interface cable or remote antenna

Environmental: 

• Operating temperature: -30°C to +85°C (internal temperature)
• Storage temperature: -40°C to +90°C

Input Voltage:  3.6 to 6 VDC, ± 5% regulated, 150 mV p-p ripple 115 mA typical @ 5.0 VDC

Backup Power:  Internal rechargeable 3V Lithium coin cell battery , up to 10 year life

Specifications are subject to change without notice.

* Depth capacity is dependent on water salinity, bottom type, and other water conditions.