South G4 - new efficiency in a demanding environment

Versatile use

The G4 has a wide range of uses: you can use it either as a rover (a measuring device) or as a base (a base station). You can make measurements with South's own Survstar software or others, such as Aplitop TcpGPS or QField. You can also control the device with a PC or phone using the WebUI interface, in which case you don't need Survstar. In this case, you can program the device to send NMEA messages via Bluetooth to another measurement program running on the phone or computer, such as the Finnish Infrakit. With the WebUI, you can also program the device to measure RINEX data automatically for PPK measurement.

Save Weak Signal
SOUTH always spares no efforts to invest in innovations. Through unremitting research and improvement of the multisatellite positioning algorithm, we have developed—the S805 GNSS engine. It has 1698 channels to track more satellites and weak signals. The more important improvement is about the success rate
and speed of obtaining a fixed solution. Previously, under the dense forest and surrounded by buildings, it was impossible to get a fixed solution. Now with G4, you don't have to wait a long time to get fixed. It used to take minutes, but now it takes tens of seconds.

Farlink 2.0
Less Limitation
Better Performance
Here comes the Farlink 2.0. After years of hardware and firmware updates, Farlink 2.0 can undertake larger data and provide more stable transmission.
In addition, Farlink 2.0 can receive data from one specific base. Even though there are several bases transmitting with the same frequency, your rover will receive data from the correct base.
Each radio had extreme temperature-changing testing from-20℃ to 60℃.

The 4th Generation IMU
Almost All-time Usable
In 2023, two major updates were launched: Calibrate-free Initialization & Stability Improvement.
For 2024, we have a new update again: when you rotate the pole, IMU sensor remains usable.
In the past, surveyors would rotate the pole when changing the direction of travel or adjusting the attitude of the receiver, sometimes it disables IMU. Now the new update eliminates the loss of Inertial-Measurement-Usable Status in most
scenarios to improve the availability and productivity of IMU.

More Robustness & Durability
The body of the G4 is made of AZ91D magnesium alloy, which has high strength and excellent heat dissipation. The surface is sprayed with metallic paint, which makes the G4's body resistant to scratches, impacts, and rust.
The top cover of the G4 is made of polycarbonate by one-piece molding. It has good fire resistance and anti-deformation properties. GNSS signal will
be received evenly from all directions.

By Surveyors, For Surveyors
Based on the opinions and suggestions of old users, we redesigned the color and indicator light of the receiver.
The yellow bodywork makes surveyors and the instrument more conspicuous. On the construction site, in the dense forest, others will easily notice the users of G4 and protect their safety.
Now surveyors can check the receiver's working status more clearly in
complicated environments such as forests or at night. At the same time, it can be better seen from a long distance.

Prepare for All Conditions
G4 is equipped with every basic module like network, 2W radio, WiFi, IMU and extendable SSD (up to 128GB).
With all these modules installed, G4 is a utility player in the field. No matter what environments it encounters, neither for now nor in the future, G4 can always start to work with appropriate modules.

Unique SOUTH Algorithm, Reliable Working Power
SOUTH research team has a number of core technologies and unique algorithms, such as the SOUTH algorithm. It can correct data from harsh environments to obtain better accuracy. Fixed-keep allows continuing to measure for a few minutes after losing the fixed solution. Beidou PPP and Galileo HAS help you achieve precise point positioning through satellite broadcasted signals, so you can even work in areas without CORS corrections. Your success is our target.