CHCNAV i73+ Pocket IMU-RTK Uhf Base + Rover (1408CH)

GNSS Performance:

Channels: 1408 channels with iStar2.0

GPS: L1C/A/L2P (Y)/L2C/L5

GLONASS: L1, L2, L3*

Galileo: E1, E5a, E5b, E6*

BeiDou: B1I, B2I, B3I, B1C, B2a, B2b

QZSS: L1, L2, L5, L6*

NavIC/ IRNSS: L5*

PPP: B2b-PPP

SBAS: L1, L5

GNSS Accuracies

RTK: H: 8 mm + 1 ppm RMS; V: 15 mm + 1 ppm RMS; Initialization time: <10 s; Initialization reliability: >99.9%

PPK: H: 3 mm + 1 ppm RMS ; V: 5 mm + 1 ppm RMS

High-precision static: H: 2.5 mm + 0.1 ppm RMS ; V: 3.5 mm + 0.4 ppm RMS

Static and rapid static: H: 2.5 mm + 0.5 ppm RMS ; V: 5 mm + 0.5 ppm RMS

Code differential: H: 0.4 m RMS | V: 0.8 m RMS

Autonomous: H:1.5 m RMS | V: 2.5 m RMS

Positioning rate (4): 1 Hz, 5 Hz and 10 Hz

Time to first fix (5): Cold start: <45 s, Hot start: <10 s; Signal re-acquisition: <2 s

IMU update rate 200 Hz

Till angle 0-60°

RTK tilt-compensated: Additional horizontal pole-tilt uncertainty typically less than  8 mm + 0.7 mm/° tilt

Electrical

Charging time: Full charge in 4.5 hours

Operating time on internal battery(7): 

+ UHF/ 4G RTK Rover w/o camera: up to 17 h

+ Visual Stakeout: up to 10 h

+ Static: up to 22 h

Charging spec: Type-C 5 V / 2 A

Hardware:

Size (D x H): 119 mm x 119 mm x 85 mm(4.7 in × 4.7 in x 3.3 in)

Weight: 0.73 kg (1.60 lb)

Front panel: 4 LED, 2 physical buttons

Environment: Operating: -40°C to +65°C(-40°F to +149°F); Storage: -40°C to +85°C (-40°F to +185°F)

Humidity: 100% condensation

Ingress protection: IP67 waterproof and dustproof, protected from temporary immersion to depth of 1 m

Shock: Survive a 2-meter pole drop

Tilt sensor:  Calibration-free IMU for pole-tilt compensation.;  Immune to magnetic disturbances; E-Bubble leveling