iRTK4 GPS Specifications |
GNSS TECHNOLOGY | External Power |
Satellite Signals Tracked Simultaneously | 7-28V DC external power input (5-pin port) with over-discharge protection |
Channels..........................................................................................................800+ | Power Consumption............................................................................................. 4.2W |
GPS................................................................................................. L1/L2/L5/L2C | Support Power Bank charging. |
GLONASS.......................................................................................... L1/L2/L3 | Dimensions(W×H)............................................................................ 156mm×77mm |
BDS ...................................................................... B1/B2/B3/B1C/B2a | Weight .............................................................................. ≤1.2kg (includes battery) |
Galileo................................................................................ E1/E5 AltBOC/E5a/E5b/E6 | Data storage.................................................................. 8GB ROM internal storage |
SBAS ...................................................................................................... L1/L5 | Control Panel |
QZSS ................................................................................ L1/L2/L5/L6 | Physical Button ............................................................................................................. 2 |
IRNSS .................................................................................................. L5 | LED Lamp ............................................................................. Satellite, Signal |
Global correction service.......................................................... Hi-RTP (optional) | Environment |
Base/Rover........................................................................................interchangeable | Water/Dustproof .................................................................................................... IP68 |
POSITIONING PERFORMANCE | Shock and Vibration............ Designed to survive a 2m natural fall onto concrete |
High-precision static GNSS Surveying | Humidity ...................................................................... 100%,condensing |
Horizontal ................................................................................. 2.5mm + 0.1ppm RMS | Operation Temperature ................................................... -30ºC~+70ºC |
Vertical ...................................................................................... 3.5mm + 0.4ppm RMS | Storage Temperature ......................................................... -40ºC~+80ºC |
Static and Fast Static | I/O Interface |
Horizontal.................................................................................2.5 mm + 0.5 ppm RMS | 1 × USB port, Type C, OTG function |
Vertical..........................................................................................5 mm + 0.5 ppm RMS | 1 × SMA antenna connector |
Post Processing Kinematic (PPK / Stop & Go) | 1 × DC power input (5-pin) |
Horizontal.......................................................................................... 8mm+1ppm RMS | 1 × Nano SIM card slot |
Vertical............................................................................................. 15mm+1ppm RMS | HARDWARE |
Initialization time................................ Typically 10 min for base and 5 min for rover | Communication |
Initialization reliability..................................................................... Typically > 99.9% | Bluetooth 4.2/2.1+EDR, 2.4GHz |
Code Differential GNSS Positioning | Network Communication:4G cellular mobile network (TDD-LTE, FDD-LTE, WCDMA, EDGE,GPRS, GSM) |
Horizontal........................................................................................ 25cm+1ppm RMS | WiFi frequency is 2.4G, support 802.11b/g/n protocol. |
Vertical.............................................................................................. 50cm+1ppm RMS | Internal UHF Radio |
SBAS.......................................................................................... 0.5m(H), 0.85m(V) | Frequency................................................................................................ 403-473MHz |
Real Time Kinematic (RTK)Single Baseline | Channels .......................................................................................... 116 (16 scalable) |
Horizontal...............................................…...........…....... 8mm+1ppm RMS | Transmitting power....................................... 1~4W Hi-Target Advanced Radio |
Vertical .................................................….............…...... 15mm+1ppm RMS | Supports multiple protocols: HI-TARGET, TRIMTALK450S, TRIMMARK III, |
Network RTK(VRS, FKP, MAC) | TRANSEOT, SATEL-3AS, etc. |
Horizontal...............................................…...........….... 8mm+0.5ppm RMS | Working Range ...............................................Typically 3~5km, optimal 5~8km |
Vertical .................................................….............…....15mm+0.5ppm RMS | External UHF Radio |
Initialization time.....….....................................….............…..................................2-10s | External HDL460A Full Protocols Radio |
Initialization reliability.....................................…...................…...Typically >99.99% | Frequency............................................................. ....................................403-473MHz |
Hi-Fix2 | Channel ............................................................ ................................ 116 (16 scalable) |
Horizontal.........…...................................................RTK + 10 mm/minute RMS | Transmitting power .................................. ............................10W/35W adjustable |
Vertical.........….........................................................RTK + 20 mm/minute RMS | Protocols: HI-TARGET, TRIMTALK450S, TRIMMARK III, TRANSEOT, etc. |
Tilt Survey Performance | Working Range .................................... ..Typically 8~10km, optimal 15~20km |
Additional horizontal pole-tilt uncertainty typically less than 8mm+0.7mm / °tilt (2.5cm accuracy in the inclination of 60°) | Data Formats |
PHYSICAL | Output Rate ............................................................................................. 1Hz-20Hz |
Internal Battery | Static data format ................................................................................ GNS, Rinex |
Internal 7.4V/6800mAh lithium-ion rechargeable battery. | Network model ................................VRS, FKP, MAC; supports NTRIP protocol |
Charging: supports USB PD3.0quick charge, Quick charge within 3.5 hours. | CMR& RTCM: CMR, RTCM 2.x, RTCM 3.0, RTCM 3.2 |
RTK Rover (Network) for 10 hours. | Navigation Outputs ASCII ............................................................ NMEA-0183 |