Used Hemisphere S320 GNSS RTK Base and Rover

(24 customer reviews)


The Hemisphere S320 was the best selling unit of its time. A well-made product will last forever- that’s why our customers are still using the S320. We have high standards for our used equipment: we test, repair, reburbish and clean before selling. You can be assured that your S320 will still work like a charm.


  • 30 Day Warranty
  • 4 Years Old
  • Free Technical Support
  • Carlson SurvCE
  • Internal UHF Radio
  • Network Rover Cellular Modem
  • Works under Tree Canopy
  • 7mm Accuracy
  • Very Fast Time to Fix
  • Raw Data Storage – 2GB SD Card
  • Dual Bluetooth


  • S320 GNSS Survey Receiver (Base)
  • S320 GNSS Survey Receiver (Rover)
  • Pelican Hard Case
  • 2 dual cradle and chargers
  • power cable
  • HI tape
  • UHF High gain antennas


Hemisphere S320

The Hemisphere S320 is Bench-Mark’s best-selling GNSS technology of its time. The receiver is well made- we still have numerous customers running it. You can be sure that when you buy a used S320 it will be completely cleaned and refurbished. We subject all of our used S320’s to a 3 km baseline radio test, and only sell the best-performing.


The Hemisphere S320 has the flexibility to always get the job done, no matter what application you are looking to work with. It’s both cellular and UHF radio capable, and the internal 1 Watt 400 Mhz radio easily gives you 3 km of range. In addition, being the original receiver StormCaster internet RTK was designed for, it functions as a Network Rover as well.

Athena RTK Engine

The Hemisphere S320 also features Sure-Track Intelligence by means of the Athena RTK engine, also found in Hemisphere’s S321+ receiver. With SureTrack, you get RTK in congested environments and long-range baselines without the fear of your receiver mixing GNSS data. The rover performs well even if the base is only GPS, and uses every satellite that is available. This receiver delivers where its competitors struggle.


One of the features that the S320 was renowned for was the hot swappable battery capability and the long lasting batteries. Although no longer in its prime, the S320 still boasts an impressive 5 hours of battery life. The S320 is also built to be surveyor tough- and that’s why it has lasted so long. With an environmental rating of IP67 and a shock rating of EP455, you know this is the receiver you can still rely on for years to come.


See How the S320 Performs


Key Features

  • SMS Communication: Send and receive status messages via SMS
  • Internal Radio SS/UHF & GSM Cellular, Optional UHF 400 MHz or 900 MHz internal radio eliminates the need for cables on both base and rover setups
  • Dual Bluetooth Ports: Connecting data collectors and CDMA modem devices
  • Dual Hot-Swap Batteries Includes two lithium ion batteries, which provides more than 5 hours of battery life
  • 2GB SD Memory Card Removable SD card for data logging with powerful scripting capabilities
  • SureTrack™ Intelligence: Hemisphere GNSS’ exclusive SureTrack intelligence gives you excellent RTK performance: Long-range RTK baselines; reliable RTK in congested environments; removes concerns of mixing GNSS data from various manufacturers; even if base is GPS only, rover can deliver complete GNSS performance where others may not; RTK rover uses every satellite it’s tracking, even satellites not tracked at the base.

24 reviews for Used Hemisphere S320 GNSS RTK Base and Rover

  1. Brady Lange – PotashCorp

    I’ve now had plenty of time to learn how to effectively use the equipment it seems to be working perfectly.

  2. Kevin – Bullee Consulting

    Next time we buy another RTK System we will not even consider anything else, we love the s320.

  3. Mathieu – Northcan Surveys

    This Hemisphere S320 tracks satellites and holds a fix position better than any GPS I have ever used before.

  4. Bill – JWL Engineering

    Accuracy is amazing, I turn it on and it just works!

  5. Kevin – University of Calgary

    I like it. Works well around trees and buildings…stays fixed longer, and if fix is lost, regained faster once back out in the open.

  6. Patrick Russnak – Lecor Construction

    I use the S320 it every day for the pipeline work it has performed very well, with near-perfect accuracy. I am very happy with the unit.

  7. Adam – SNC-Lavalin Inc.

    I have had no complaints from my 10 survey crews, so I will take that as a good sign.

  8. Tom Carter – Eagle Creek Technical

    So far so good, no problems. Thanks!

  9. Gord Cunningham, Survey Contractor

    This Hemisphere S320 works just fine.

  10. Casey Pennington – Vesecky Engineering & Surveying

    It is all going well.

  11. Dustin – Pinter & Assoc.

    It’s runs good every day!

  12. Roger – County of Vermilion River

    The equipment is working great.

  13. Steve – Madison Resource Solutions

    The s320 equipment has been working very well for me. Any glitches I have experienced have mainly been my finger input problems.

  14. Michael Byrne – Northwest Harris

    The S320s are working great! It’s one of the smarter purchases I’ve made. The accuracy is 2 times better than using my old sokkia 2700is! The company is very happy with the amount of stakeout I complete.

  15. Bill – TJC Engineering

    The system is working well!

  16. Andrew – BMC Services Ltd.

    The system works really nice.

  17. Cam , A.L.S.

    So far so good, it’s been working pretty good. What I really appreciate is your service.

  18. Danny Benson – Timbercraft

    The S320 is working perfectly, as for the Hemisphere GPS I couldn’t be happier. I can’t believe the difference between the old unit I had before and the S320. It has cut my field work time almost in half so easy to setup, very fast RTK lock fixes and I really like the Carlson software.

  19. Alex Campbell – Northcan Surveys

    Everything is working fine.

  20. Eric A. Zabate – Clifton & Assoc. ltd.

    So far so good, it’s working well. Surveying has been easier since I got it.

  21. Duncan Spenst – Water Security Agency, SK

    The system has been working excellent! We are definitely getting more distance from the base with the Pacific Crest external radio. We were out surveying in some rugged terrain a couple weeks ago and were about 8 miles south of the base and we were still able to get a fix solution.

  22. Paul Grimard – Arpenteur-Géomètre

    L’équipe de support technique de Carlson a rapidement trouvé la solution (qui originait de la configuration de Windows). Ce petit mot pour vous réitérer mon entière satisfaction de faire affaires avec vous et Carlson, tant au point de vue de la qualité des produits qu’à celui des services; je vous recommande à mes collaborateurs !

  23. Edward Salmon – Edward Salmon Surveys, Fort McMurray, AB

    The performance of the S320 receivers is outstanding. The fix comes very fast and holds it in areas that I didn’t get before.

  24. Tammy Smith – OGL Engineering

    Great customer service!

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