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Hemisphere S631 Base and Rover Package with Autel Drone for Photogrammetry


The Hemisphere S631 and Autel Evo II RTK create an ideal photogrammetry package for surveyors. This combination offers real-time corrections to the drone via cellular connectivity, providing centimeter-level positioning without the need for post-processing. The Hemisphere S631 is a high-precision GNSS receiver that supports multiple satellite constellations, while the Autel Evo II RTK integrates RTK technology directly into the drone system. This package enables surveyors to capture accurate aerial imagery for photogrammetry, ensuring precise 3D models and maps without the hassle of post-processing.


  • Triple Frequency Multi Constellation Receiver
  • Fix on Any Constellation
  • Best in Class Canopy Performance
  • Internal 1 Watt Satel Radio – 10 km Range
  • LTE Internal Cell Modem
  • 9 Hour Hot Swappable Batteries
  • 1.3 kg with Batteries
  • Centimeter Level Positioning with NTRIP Corrections
  • Quick Set Mission Profiles
  • Photo Replication
  • Multi-Battery Missions
  • 9+ Mile Range


  • Hemisphere S631 GNSS Base Receiver
  • Hemisphere S631 GNSS Rover Receiver
  • UHF Antennas
  • 4x Batteries
  • Data Collector
  • FieldGenius
  • Tripod
  • Adjustable 2m Pole
  • 1x Autel Evo II Drone Series 3
  • 1x 6k Camera
  • 1x Gimbal Cover
  • 3x Spare Propellors
  • 1x Smart Charging Cable and Block
  • 1x Evo II Battery Multicharger
  • 2x Batteries
  • 1x Hard Case
  • 1x 32 GB SD Card
  • 1x RTK Module
  • 1x Autel Robotics V3 Smart Controller
  • 1x Smart Charging Cable and Block
  • 2x Spare Controller Sticks
  • 1x Smart Controller Hanging Neck Strap


Hemisphere GNSS

Hemisphere was founded in 2002, and has provided industry leading GNSS positioning solutions. First breaking into the agriculutre positioning market, Hemisphere has become a main stay of the agriculture industry under the brand name OutBack. Branching out from agriculture, Hemisphere has provided leading positioning technology in the form of their Vector marine products, and their industry best S-Series of surveying equipment. 

Hemisphere is known for their high-performance, high-precision and reliable GNSS products that take full advantage of the latest signals and constellations. Hemisphere’s products are designed to provide accurate and reliable positions even in difficult multi-path and high interfence environments. Hemisphere receivers are industry leader’s in multi-path positioning and can out-perform or match any reciever on the market. 

Hemisphere GNSS is head-quatered in Scottsdale Arizona, and has several offices across North America, including in Calgary Alberta and Winnipeg Manitoba. What this means for you is, that all support and service is provided in your time zone. There is no need to ship anything overseas, meaning quick turn-arounds on any repairs. Here at Bench-Mark we have been Hemisphere wholesale distributors for over 10 years. We have watched Hemisphere improve their survey offerings from the dual-frequency S320 all the way to the multi-GNSS and multi-frequency S631 reciever. 

The Hemisphere S631

The Hemisphere S631 is the latest survey receiver from Hemisphere, and boasts all of the latest RTK technology they have to offer. It is a multi-frequency, multi-GNSS reciever that is the best performing receiver to date. 

The Hemisphere S631 can receive corrections from all of the major constellations including; Galileo, BeiDou, GPS and Glonass. With the ability to fix off any constellation the S631 can take the best available corrections to determine its position. 


GLONASS: G1/G2/G3, P1/P2

BeiDou: B1i/B2i/B3i/B1OC/B2A/B2B/ACEBOC

Galileo: E1BC/E5a/E5b/E6BC/ATLBOC



SBAS and Atlas

Easily Connect to Your Drones

The Hemisphere S631 is the ultimate solution for RTK drones, providing seamless integration with StormCaster to effortlessly transmit NTRIP corrections from the base station. Say goodbye to time-consuming post-processing, as our system ensures real-time, centimeter-level precision for your drone without any hassle.

Whether you’re involved in surveying, mapping, precision agriculture, construction, or inspection, the Hemisphere S631 is your indispensable companion. Its high-accuracy performance enables you to deliver exceptional results in a variety of industries, revolutionizing the way you operate.

By investing in the Hemisphere S631, you unlock unlimited potential for your drone-based endeavors. Our RTK base station, optimized for NTRIP drones, ensures unparalleled precision while enhancing overall productivity. Experience the power of our advanced technology and take your aerial operations to new heights.

Superior Multi-Path Performance

The Hemisphere S631 provides best in class under canopy performance. The S631 uses Hemisphere’s proprietary Athena RTK engine. The Athena RTK engine is designed to utilize all of the signals that are available today. With access to the higher power, and multi-path mitigating L5 signals on all available constellations, the S631 can perform under dense canopy. 

Advanced IMU tilt Sensor

One of the biggest advantages of the Hemisphere S631 over the last generation of recievers is the introduction of the Inertial Measurement Unit (IMU). The IMU inside of the S631 integrates RTK data with the inertial sensor to get an accurate position. By integrating RTK data into the IMU sensor, you do not have to worry about orientation or calibration. 

The IMU tilt sensor can be calibrated in as little as 30 seconds, with a very simple rocking motion. All you have to do is hold the point of the pole on the ground and rock it back and forth to calibrate the sensor. The quick procedure takes no time in the field and you are ready to start surveying right away. 

Extended Range, Battery and Durabilty

The S631 boasts powerful internal 1 W Satel radios, that can provide up to 10 km of base to rover range. The internal Satel radio is capable of broadcasting many of the most common and popular radio formats, including; TrimTalk, Pacific Crest, TrimMark and Satel. With the ability to program and edit your frequencies, message types, protocols, and more you can always find radio settings that will work with your existing equipment.

The S631 is encased in a magnesium housing that provides dust, shock and water proofing. WIth an IP67 environmental rating, and a MIL-STD-810G rating, you can be assured that the Hemisphere S631 will stand up to whatever you throw at it on site. Whether it falls from your truck, pole or your tripod is blown over the S631 can take any impact you throw at it.

The S631 supports all of this processing and radio power with long lasting battery. There are two batteries that can be hot swapped in the reciever, that allows for up to 12 hours of continuous range. The batteries both have smart battery indicators to indicate how much charge remains in the battery. 


Autel Robotics

Autel Robotics is an innovative and leading company in the field of unmanned aerial vehicles (UAVs) and robotics. Established in 2014, Autel Robotics has quickly gained a reputation for its cutting-edge technology and high-quality products. The company’s mission is to provide customers with advanced aerial solutions that are both reliable and accessible. Autel Robotics has a diverse range of products, including drones for both recreational and professional use, as well as industrial-grade UAVs for various applications.

One of the standout features of Autel Robotics is its commitment to research and development. The company invests heavily in innovation, pushing the boundaries of what is possible in the drone industry. Autel Robotics has a dedicated team of engineers and designers who work tirelessly to create products that deliver exceptional performance and functionality. With a focus on user-friendly interfaces and intuitive controls, Autel Robotics ensures that their drones are accessible to both beginners and experienced pilots.

The Evo II Drone

Introducing the Autel Robotics EVO II Drone, an exceptional tool tailored for the field of photogrammetry, specifically catering to the needs of surveyors and professionals in the mapping and land surveying industry. With its state-of-the-art features and cutting-edge technology, the EVO II is revolutionizing the way surveyors capture and analyze data.

Equipped with an industry-leading 6K camera and a 1-inch sensor, the EVO II delivers unparalleled image quality and clarity, ensuring that every detail is captured with precision. This high-resolution imagery provides surveyors with the accurate and detailed data they require for mapping, orthophoto generation, and 3D modeling. With its ability to capture both still images and video, the EVO II allows surveyors to document sites comprehensively and analyze the data effectively.

The EVO II’s extended flight time of up to 40 minutes allows surveyors to cover larger areas in a single flight, reducing the need for multiple trips and optimizing efficiency. With a range of up to 9 kilometers (5.6 miles), the drone can easily access remote or hard-to-reach locations, enabling surveyors to capture data from a wide range of terrains and environments.

Easy and Safe Flying

To ensure the utmost accuracy and safety during flights, the EVO II is equipped with an advanced obstacle avoidance system. This system, powered by twelve vision sensors, allows the drone to detect and avoid obstacles in real-time, ensuring smooth and reliable operation even in complex surveying scenarios.

With its intelligent flight modes, such as Dynamic Track 2.0 and Waypoint 2.0, the EVO II simplifies the surveying process. Surveyors can effortlessly plan and execute flights, precisely following a predefined flight path or autonomously tracking a target of interest. These features streamline data collection, enhance productivity, and provide surveyors with the flexibility to focus on analyzing the acquired data.

The EVO II’s compact and foldable design makes it highly portable, allowing surveyors to easily transport the drone to various surveying sites. Its user-friendly interface and intuitive controls ensure that even those new to aerial surveying can quickly adapt and harness the full potential of this powerful tool.

The Autel Robotics EVO II Drone empowers surveyors with unparalleled capabilities, efficiency, and accuracy in the field of photogrammetry. Embrace the future of surveying technology and unlock a new level of precision in your mapping and land surveying projects with this remarkable drone that redefines the possibilities of photogrammetry.


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