Engineering land survey coordinates measuring GNSS RTK GPS

MEASUREMENTS

• 220 Channels

• Advanced Pacific Crest Maxwell 6 Custom Survey GNSS Technology

• High precision multiple correlator for GNSS pseudo range measurements

• Unfiltered, unsmoothed pseudo range measurements data for low noise, low multipath error, low time domain correlation and high dynamic response

• Very low noise GNSS carrier phase measurements with<1 mm precision in a 1 Hz bandwidth

• Signal-to-Noise ratios reported in dB-Hz

• Proven Pacific Crest low elevation tracking technology

Satellite signals tracked simultaneously

GPS: Simultaneous L1C/A, L2C, L2E, L5

GLONASS: Simultaneous L1C/A, L1P, L2C/A (GLONASS M only), L2P

SBAS: Simultaneous L1 C/A, L5

Galileo: Simultaneous L1 BOC, E5A, E5B, E5AltBOC

BDS: B1, B2

QZSS: L1 C/A, L1 SAIF, L2C, L5

POSITIONING PERFORMANCE

Static and Fast Static GNSS surveying

Horizontal: 2.5mm+0.5ppm RMS

Vertical: 5mm+0.5ppm RMS

Post Processing Kinematic

(PPK / Stop & Go) GNSS surveying

Horizontal: 1cm+1ppm RMS

Vertical: 2cm+1ppm RMS

Initialization time: typically 10 minutes for base while 5 minutes for rover

Initialization reliability: typically > 99.9%

RealtimeKinematic(RTK) surveying

Horizontal: 8mm+1ppm RMS

Vertical: 15mm+1ppm RMS

Initialization time: typically < 8 seconds

Initialization reliability: typically > 99.9%

Code Differential GNSS positioning

Horizontal: 25cm+1ppm RMS

Vertical: 50cm+1ppm RMS

SBAS[iv]: 0.50m Horizontal, 0.85m Vertical

HARDWARE

Physical

Dimensions (W x H): 19.50cm x 10.40cm(7.68 in x 4.09 in)

Weight: 1.3kg (2.86lb) with internal battery, internal radio, standard UHF antenna

Operating temperature: -45℃to +65℃ (-49℉ to +149℉)

Storage temperature: -55℃ to +85℃ (-67℉ to +185℉)

Humidity: 100%, considering

Water/dustproof: IP67 dustproof, protected from temporary immersion to depth of 1m (3.28ft).

Shock and Vibration: Designed to survive a 3m(9.84ft) natural fall onto concrete.

Electrical

Power 6V to 28V DC external power input

Power consumption 2.5W

Automatic Switching between internal power and external power

Rechargeable, removable 7.4V, 5000mAh Lithium-Ion battery in internal battery compartment

Internal battery life

Static 13 - 15 hours

RTK Rover (UHF/GPRS/3G) 10 - 12 hours

RTK Base 8 - 10 hours

I/O interface

1 x Bluetooth

1 x standard USB2.0 port

2 x RS232 serial port

2 x DC power input (8-pin & 5-pin)

COMMUNICATION AND DATA STORAGE

GPRS/GSM or 3G

Fully integrated, fully sealed internal GPRS/GSM or 3G

Network RTK (via CORS) range20-50km

HI-TARGET internal UHF radio (standard)

Frequency: 460 MHz with 116 channels

Transmitting Power: 0.1W, 1W, 2W adjustable

Transmitting Speed: Up to 19.2Kbps

Working Range: 3~5Km typical, 8~10km optimal

Pacific Crest XDL micro Internal UHF Radio

Frequency: 403~473 MHz

Transmitting Power: 0.5W, 1.0W, 2.0W adjustable

Transmitting Speed: Up to 19.2Kbps

Support most of radio communication protocol

Working Range: 3~5km typical, 8~10km optimal

HI-TARGET External UHF radio (standard)

Frequency: 460 MHz with 116 channels

Transmitting Power: 5W, 10W, 20W, 30W adjustable

Transmitting Speed: Up to 19.2Kbps

Working Range: 8~10Km typical, 15~20km optimal

Pacific Crest ADL Vantage Pro External UHF radio

Frequency: 390~430 MHz or 430~470 MHz

Transmitting Power: 4W to 35W adjustable

Transmitting Speed: Up to 19.2Kbps

Support most of radio communication protocol

Working Range: 8~10Km typical, 15~20km optimal 

Support other external communication device

For example, external GSM modem.

Data storage

64MB internal memory

Data formats

(1Hz positioning output, up to 50 Hz - depends on installed option)

CMR: sCMRx, CMR, CMR+input and output

RTCM: RTCM 2.1, 2.2, 2.3, 3.0, 3.1 input and output

Navigation outputs ASCII: NMEA-0183 GSV, AVR, RMC, HDT, VGK, VHD, ROT, GGK, GGA, GSA, ZDA, VTG, GST, PJT, PJK, BPQ, GLL, GRS, GBS

Navigation outputs Binary: GSOF

1 Pulse Per Second Output