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The S321 is Hemisphere’s all-new multi-GNSS, multi-frequency, smart antenna. The S321 provides a robust performance and high precision in a compact and rugged package. With multiple wireless communications ports and an open GNSS interface, the S321 can be used in a variety of operating modes. Use the S321 as a precise base station sending RTK to your existing rover network. Turn S321 into a lightweight and easy to use rover by connecting it to your base via UHF radio or Wi-Fi network. The built-in web user interface can be used to control and manage the receiver status and operation, as well as to upgrade the S321 with new firmware and activations. S321 is Athena-enabled and Atlas- capable.

The S321 receiver also enables users to work with the Atlas service. Atlas is Hemisphere’s industry leading global correction service, which can be added as a subscription to the S321. The Atlas system delivers world-wide centimeter-level correction data over L-band communication satellites. With Atlas, S321 users are able to experience sub-decimeter positioning performance anywhere on earth.


Atlas L-band has the following benefits:

>Positioning accuracy - Competitive positioning accuracies down to 2 cm RMS in certain applications
>Positioning sustainability - Advanced position quality maintenance in the absence of correction signals, using Hemisphere’s patented technology


The S321 is an Atlas capable product



Data Sheet

User Guide



Contact us for pricing and availability today!


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