Alpha 4i Ultra GNSS RTK Receiver
Land Survey RTK GPS BASE & ROVER with IMU Tilt Function Receiver Fullset
3 Outstanding Technologies
- All-satellites full-frequency 8cm positioning antenna.
- The latest generation of global positioning SoC chip.
- Embedded real-time operating system RTOS.
Globally supports 7 satellites
- 24 frequencies of the 7 major satellites
- Remarkable performance and experience
- Anti-block
- Instant fix
- High-precision
Long battery life
- Ntrip --- 8h
- Radio Receiving --- 15h
- Radio Transmitting --- 8h
Fully Compatible Transceiver Internal UHF Radio
Supports various working modes in global regions Supports 410-470MHz full frequency band Compatible with various RTK protocols Outputs stable solution to 3km base station surveying area Compatible with 35W external radio
90º Inertial Navigation
Fast initialization IMU, support tilt measurement with 2CM accuracy when tilt angle 60º, IMU can still work in tilt angle 90º even 120º
Application:
GPS Control, Topo Survey, As-Built, Stake-out, Jungle Survey, Site Calibration, Earthworks, Infrastructure, Engineering Survey, Marine Survey, Land survey & etc.
Satelites Signal Tracking:
GPS, GLONASS, BeiDou, Galileo, QZSS, SBAS, IRNSS/NAVIC
GPS: L1, L1C, L2C, L2P, L5
GLONASS: G1, G2, G3
BEIDOU: BDS-2, B1I, B2I, B3I, B1C, B2a, B2b, BDS-3
GALILEO: E1,E5a, E5b, ALTBOC, E6
QZSS: L1, L2C, L5
SBAS: L1
IRNSS/NAVIC: L5
RTK accuracy: Horizontal: +/-8mm + 1ppm, Vertical: +/-15mm + 1ppm
Static accuracy: Horizontal: +/-2.5mm + 1ppm, Vertical: +/-5mm + 1ppm
Channel: 1408 Channels
IMU Tilt: 120 Degree
Function Features:
Alpha 4i is a new product with Alpha SoC chip,most components of 4i (GNSS module, Wi-Fi, Bluetooth,etc.) are integrated on one circuit board. 4i has lower powerconsumption, and efficiently improves the ability of receivinghigher quality satellites signals.Powerd by the new SoC GNSS board, new generation sensitivity satellite antenna, new ROS platform and GNSS RTK engine, 4i can fully track GPS, GLONASS, BDS, GALILEO, QZSS, SBAS and IRNSS/NAVIC. To obtain centimeter-level positioning in few seconds. Now 4i supports the BeiDou-3, B2b, L-band and BDS-PPP, it can get real-time high-precision positioning even there is no base receiver.
Multiple communication connections:
WiFi, Bluetooth, RTK host network connection, support IGRS pairing, users can choose the connection method according to the specific job, flexible and efficient.
Site elevation:
Various elevation model files, such as triangular nets, are self-built and imported for site elevation staking to facilitate site elevation control.
Background map:
Support SHP, DXF and other user data to add, support offline and online Baidu map display, there are maps and the truth.
** Our workshop located at Malaysia and available spare parts for repairing and maintenance in future.
** We have 25 years experienced engineer to repair and calibrate all type of survey instruments.
~ ~ Please feel free to contact us if you require further information/clarification on the product. ~ ~
US 10607 
IN 6405 
VN 4894 
BR 4542 
RU 2840 
GB 2369 
CN 2089 
PH 1727 
