Lightweight and Portable with Long Battery Life
Multi-System and Multi-Band Support
60° Tilt Measurement Technology
Integrated Drop Protection and Efficient Operation
Weighing only 380 grams and compact enough to fit in the palm of your hand, the device provides up to 12 hours of continuous operation in mobile station mode, ensuring reliable performance for all-day fieldwork.
With 1,408 GNSS tracking channels, the receiver simultaneously processes signals from GPS, BDS, GLONASS, Galileo, QZSS, NavIC, SBAS, and L-Band, ensuring high-precision and stable positioning for a wide range of applications.
Revolutionizing traditional workflows, this technology eliminates the need for precise leveling:
With its ergonomic design, the P9IV offers easy one-handed use and provides extended flexibility during fieldwork. Featuring an MTK 8-core 2.0G processor, Bluetooth 5.0, and a 5.0 inch HD touchscreen, the P9IV provides excellent performance and a smooth experience either in or outside the field.
| GNSS Performance | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Satellites tracking |
| ||||||||||||||||
| Channels | 1408/2050(optional) | ||||||||||||||||
| Signal reacquisition | < 1 second | ||||||||||||||||
| Cold start | < 30 seconds | ||||||||||||||||
| Warm start | < 20 seconds | ||||||||||||||||
| Hot start | < 5 seconds | ||||||||||||||||
| RTK signal initialization | < 5 seconds | ||||||||||||||||
| Initialization reliability | > 99.9% | ||||||||||||||||
| Update rate | 20Hz | ||||||||||||||||
| High precision static | √ H: 2.5 mm + 0.1 ppm RMS √ V: 3.5 mm + 0.4 ppm RMS | ||||||||||||||||
| Static and Fast Static | √ H: 2.5 mm + 0.5 ppm RMS √ V: 5 mm + 0.5 ppm RMS | ||||||||||||||||
| RTK | √ H: 8 mm + 1 ppm RMS √ V: 15 mm + 1 ppm RMS | ||||||||||||||||
| Standard point positioning | √ H: 1.5 m RMS √ V: 2.5 m RMS | ||||||||||||||||
| Code differential | √ H: 0.4 m RMS √ V: 0.8 m RMS | ||||||||||||||||
| SBAS | √ H: 0.3 m RMS √ V: 0.6 m RMS | ||||||||||||||||
| Correction data | RTCM V3.X, RTCM2.X, CMR | ||||||||||||||||
| Data output | GGA, ZDA, GSA, GSV, GST, VTG, RMC, GLL, Binary | ||||||||||||||||
| Power Supply | |||||||||||||||||
| Battery | Rechargeable Built-in Lithium-ion battery x 1 3.65V – 5800 mAh | ||||||||||||||||
| Voltage | Type-C PD 12V/1.5 A | ||||||||||||||||
| Working time | Up to 12 hours as rover | ||||||||||||||||
| Charging time | Typically 1.5 hours | ||||||||||||||||
| System | |||||||||||||||||
| Operation system | Linux | ||||||||||||||||
| Internal memory | 8 GB | ||||||||||||||||
| Bluetooth | BT 5.0 BR + EDR, BLE | ||||||||||||||||
| Wi-Fi | 802.11 b/g/n | ||||||||||||||||
| Type-C port | Charge and data transmission | ||||||||||||||||
| Web UI | View status, update firmware, set up working mode, download data, etc. | ||||||||||||||||
| Intelligent voice | Broadcast working mode and status | ||||||||||||||||
| Tilt sensor | MEMS (Fast initialization, dynamic tilt survey up to 60°) | ||||||||||||||||
| Physical | |||||||||||||||||
| Dimension | Φ98mm x 98mm x 47.2 mm | ||||||||||||||||
| Weight | 380 g | ||||||||||||||||
| Operating temperature | -30℃ ~ +60℃ | ||||||||||||||||
| Storage temperature | -40℃ ~ +80℃ | ||||||||||||||||
| Water / dust proof | IP67 | ||||||||||||||||
| Shock | √ Withstand topple over from a 2 m survey pole onto hard surfaces √ Survive a 1.2m free drop | ||||||||||||||||
| Vibration | Vibration resistant | ||||||||||||||||
| Humidity | Up to 100% | ||||||||||||||||
| Indicators | Satellites, datalink | ||||||||||||||||
| Button | Power button, short press to voice broadcast working mode and status | ||||||||||||||||
| Certificate | FCC, CE, NGS, IGS | ||||||||||||||||
1: It will be supported through future firmware update.
Q. What if the GNSS receiver cannot get fixed?
A. There is a document attached below, which will explain how to fix your receiver:
Q. Does the ASTRA GNSS receiver support NMEA messages?
A. Yes, the ASTRA GNSS receiver supports NMEA messages:
Message type | Description |
GGA | standard NMEA, position information |
ZDA | standard NMEA, date and time |
GSA | standard NMEA, satellites in use |
GSV | standard NMEA, satellites in view |
GST | standard NMEA, position accuracy |
VTG | standard NMEA, speed |
RMC | standard NMEA, position, speed, and time |
GLL | standard NMEA, satellites in use |
GEDOP | standard NMEA, position data |
GEREF | ASTRA format, base coordinate |
GESNR | ASTRA format, signal noise ratio |
GEVCV | ASTRA format, the variance-covariance matrix |
Q. How to check your GNSS board firmware information?
A. To check your GNSS board and GNSS board firmware version, do one of the following:
Please connect to the receiver’s Wi-Fi and log on to 192.168.10.1/realtime/, in gps.xml you will find the information on the GNSS board of your GNSS receiver, including the model and firmware version of the GNSS board.

In devinfo.txt, you can find the configurations of your GNSS receiver including the GNSS board model, Bluetooth version, and antenna type.

2. SurPad
After you have connected the GNSS receiver with SurPad, in Device > Communication > Debug, input the command “GET,GPS.INFO.MODEL” and click it. Send to check the GNSS board model of your GNSS receiver; input the command “GET,GPS.INFO.FIRMWARE VER” and click Send to check the GNSS board firmware version.


Q. When do I need to transfer the SurPad activation code?
A.In the following conditions, you need to transfer the activation code:
Q. How to transfer the SurPad activation code?
A. To transfer the activation code, do one of the following:
Please prepare the original controller (which is permanently activated) and the new controller (which the code will be transferred into). Both controllers should be connected to the network. By clicking “Transfer activation code” on the original controller, a transfer code will be displayed. Then click “transfer activation code” on the new controller and an input box will be displayed. Input the transfer code on the new controller and click OK. Wait for some seconds, the permanent code will be transferred to the new controller automatically. The original controller will lose permanent activation. After the code transfer operation, it is suggested to click “Online activation” on both controllers to make refresh and confirm the code is successfully transferred.
If the user lost the controller, forgets to transfer the code before restoring the controller, or the activation ID is changed due to a software update, the RinoNav team can transfer the code for the user. The user should provide the RinoNav team with the original activation code/ID (Provide the original activation code if the user activates the software by manual code activation method; provide the original ID if the user activates software by online activation method). Users should make a note of the activation code or ID, they are the only proof for the RinoNav team to transfer the code. After the RinoNav team’s confirmation, we will tack back the original permanent activation and give a new activation code to the user.
Q. How to permanently activate the SurPad license?
A. In order to permanently activate the SurPad license, proceed with one of the following:
The controller must connect to the network. You will get a SurPad license from the salesman and click “Manual code activation” to input the code. Each code is only valid for one controller and cannot be used twice. The expiration date will show “2999-1-1” if it is permanently activated.
The controller must connect to the network. The user sends the activation ID to the RinoNav salesman. We will write the permanent information in our database after confirmation. Users just need to click “Online activation” to get permanent activation. The expiration date will show “2999-1-1” if it is permanently activated.

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