Bench Mark US - Surveying equipment

(1.3) Hemisphere S631 Network Rover RTK GNSS w/ Hemisphere CW400 and FieldGenius

(4 customer reviews)


The Hemisphere S631 is the latest receiver from Hemisphere GNSS. Featuring a board for wide selection of constellations and signals, and the 60° tilt sensor, this receiver was meant to be adaptable to your needs. Tried and true, this is the best-performing reciever on the market.


  • Triple Frequency Multi Constellation Receiver
  • Fix on Any Constellation
  • Best in Class Under Canopy Performance
  • Internal 1 Watt Satel Radio – 10 km Range
  • LTE Internal Cell Modem
  • 9 Hour Hot Swappable Batteries
  • 1.3 kg with Batteries


  • Hemisphere S631 GNSS Rover Receiver
  • UHF Antennas
  • 4x Batteries
  • P9 Windows Mobile Data Collector
  • MicroSurvey’s FieldGenius 10
  • Adjustable 2m Pole


Hemisphere GNSS

Hemisphere GNSS has provided industry leading positioning technology for over twenty years since their inception in 2002. Specializing in positioning, they provide positioning receivers and antennas to a variety of industries, including; Marine, Agriculture, Survey, UAV, Autonomous vehicles and more. Having started in agriculture with the well-known Outback brand, they have since branched out providing the best value positioning instruments on the market. 

Hemisphere has built a reputation on providing high-performance, high-precision and reliable GNSS positioning solutons for a fair and just price. They design their products to be easy to integrate, and to take care of the latest available signals and satellite constellations. With one of the best RTK and positioning engines on the market, you can take these receivers into locations you never would have dreamed with other technology. 

Hemisphere is headquartered in Scottsdale Arizona, and pride themselves on being an American company. With headquarters in Arizona and an office in Kentucky, there is no need to send your equipment overseas for repair, or to deal with tech support that does not speak your language and is not in your time zone. Everything is done in North America, and works their support is available when you are actually working. 

The Hemisphere S631

The Hemisphere S631 is the latest RTK receiver from Hemisphere. Having taken lessons from the previous generation S321 and S320, the S631 is their best offering yet. With the latest RTK engine and RTK board on offer from Hemisphere, the S631 can out perform anything on the market in difficult environments.

The S631 can receive corrections from all of the major constellations, with the ability to receive all available L5 signals. What this means for you in the field is better performance under trees and near buildings. 


GLONASS: G1/G2/G3, P1/P2

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

Galileo: E1BC/E5a/E5b/E6BC/ATLBOC



SBAS and Atlas

Multi-Path Mitigation - Athena RTK

The Phantom 40 GNSS board by Hemisphere boasts the best RTK engine on the market for mitigating multi-path noise. Multi-path noise is created when signals are reflected off of a surface before reaching the receiver. When this happens, the signal timing, which is what the reciever relies upon to calculate a position, is affected. In order to calculate an accurate and repeatable position, the RTK engine must be able to eliminate these bad signals. 

The S631 uses the Athena RTK engine to remove these bad signals from the solution. The S631 can also use Hemisphere’s SureFix technology. With SureFix, two independant and different RTK engines calculate two independant solutions. Only once the two solutions are in agreement, will the fixed solution be reported. 

The Hemisphere S631 utilizes the Phantom 40 RTK chip and the Athena RTK engine to have the best in class under canopy performance. With the ability to track every available L5 signal, and fix on any constellation, the S631 can out perform the biggest names in the industry. Check below to see how the S631 stacks up against the older generation S321+ and the latest RTK receivers from Trimble, Leica, and Sokkia. 

Advanced IMU Tilt Sensor

The S631 boasts an internal Inertial Motion Sensor (IMU). What the IMU allows the receiver to do is record accurate and reliable positions, even when the pole is tilted. This allows you to speed up your work by up to 50% when laying out. 

The IMU integrates motion and RTK data into the solution. What this means is that as you move around, the tilt sensor gains a better idea of where it is, improving results. Unlike previous generation receivers, there is no difficult and cumbersome calibration routine. All you need to do is rock the receiver back and forth for 30 seconds and you are ready to start surveying. 

Tilt allows you to drastically speed up your work pace, as you do not ever have to stop to level your pole. You can place your pole on the ground and take your shot, without ever looking at the bubble. 

Extended Range, Battery Life, and Rugged Durability

The S631 has an internal 1 Watt Satel radio, that is capable of broadcasting many of the most common survey protocols including; TrimTalk, Pacific Crest, TrimMark and Satel. The internal radio is capable broadcasting out to a range of 7 miles, and can regularly achieve 3-4 miles with no line of site in a city environment. And if that range is not sufficent, you can always use StormCaster to broadcast your corrections over a cellular network. This eliminates the downsides of radio, while allowing for an infinite amount of range. 

In order to protect the Phantom 40 board, and the long-range internal Satel radio, the S631 boasts an IP67 rating. This means that you can use the S631 come rain, sluch, dust and sun. It will be more than sufficent to stand up to the conditions you will see on site. The magnesium shell also protects against drops and accidents on site. Rated for a two meter pole drop onto concrete, the S631 can withstand anythig you throw at it. 

The internal batteries in the S631 are designed to be as efficient as possible, with up to 12 hours of continuous operation possible. The internal batteries are also removeable, in order to make at easy as possible to keep working. There is no need to wait for the unit to charge once you run out of power. You can hot swap the internal batteries, so that you do not need to stop working. With the smart indicator on battery health, the S631 is the perfect solution for those who are working a long day in the field. 


Hemisphere CW400

The IronView CW400 is Hemisphere GNSS’ next- generation professional grade GNSS data collector. The rugged handheld includes a high-sensitivity GNSS antenna and performs well in challenging environments, such as forests and urban areas.


The CW400 has the storage space for large data and faster background maps when paired with high-capacity Micro-SD cards. Bluetooth and wireless LAN enable the CW400 for easy network and device connection.


The CW400 is a rugged hand-held and meets IP65 standard, meaning it is both dust and water resistant. It comes equipped with a 3.7” industrial high contrast, sunlight-readable touchscreen display for bright conditions. Two batteries provide up to 14 hours of use allowing GNSS data collection for a full working day without the need to recharge.

  • IP65 Certified
  •  Sunlight readable display
  •  Full communication set
  •  Built-in GNSS receiver


MicroSurvey Software

MicroSurvey is behind many of the best known survey software packages on the market. Their software is desined to collect, process and analyze your survey data, as well as to design and layout development projects. They have designed their software to meet the needs of a variety of industries, including geomatics, mining, forensics, construction and more. Their tools are designed to have everything an engineer needs, but to be easy enough for anybody to use. Whether it is FieldGenius for field work, MSCAD for drafting, or StarNet for quality control, MicroSurvey has a software package to meet your needs. 

MicroSurvey is based out of Kelowna, and their support is based their too. What this means for you, is that support is based in your time zone. Their is no trying to contact someone on the other side of the world, they are available when you are working. With our Bench-Mark created how to videos and cheat sheets you can quickly and easily learn the software. 

FieldGenius - The Ultimate Surveying Solution

Unlike everyone else in the industry, MicroSurvey does not sell hardware. They are exclusively focused on providing a software solution. This means they are not pushing their own hardware, they are the last of the open software solutions. Whatever your equipment, you can connect with FieldGenius. 

FieldGenius has several different software modules, but unlike a lot of other software companies, FieldGenius provides both total station and GNSS drivers in the base package. With the premium upgrade, you get access to the robotics and roading modules. 

We recommend using the S631 with FieldGenius for the best experience. 

Easy to Learn

We have designed our entire support experience on providing you all of the information you need. We have designed it to be as easy as possible to learn the software, with training, cheat sheets, and how to videos. 

We offer training to meet your needs. In the sessions we cover how to setup recievers, create a new project, and all the basics of how to run the software. We run the session over Zoom, often with 1-2 people making it easy to ask specific questions to meet your workflow needs. 

There is also an extensive cheat sheet and video library with workflows and guides on setting up equipment to staking a point. With over 200 videos and 50 cheat sheets, you can always find what you are looking for. 

4 reviews for (1.3) Hemisphere S631 Network Rover RTK GNSS w/ Hemisphere CW400 and FieldGenius

  1. Wes Bertoldi

    The quick fixes and accuracy of the S631 in tree canopy has been impressive. Rene and David made the transition to FieldGenius easy, and were very responsive to my questions.

  2. Rudi van der Merwe

    The S631 gives us consistent and accurate results in mountainous and foiliage-covered terrain. We found that FieldGenius was easy to learn and we keep discovering more powerful features.

  3. Connor Traves

    The RTK-fixed coverage with the S631 has been vastly improved over the older S321. FieldGenius has freed up our drafters, and made construction layout a breeze.

  4. Greg Skelhorn

    The S631 is proving itself to be reliable and fast in all conditions. We have seen a definite performance boost with the addition of the S631.

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