Stonex SR35 B45-460216
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Stonex SR35 UHF Radiomodem

  • High-power radio modem: Transmits RTK corrections from a basic GNSS receiver with transmission power selectable by the user from 5W to 35W, reaching distances up to 50km.
  • Full operating modes: Can be used to transmit RTK corrections from a base station, as a radio receiver, or with the retransmission function activated.
  • Network Repeater functionality: Allows the SR35 to receive an RTK correction through the integrated GSM modem and retransmit it through the radio modem
  • Software and Android app for simple management: Includes PC software and an Android app for fast and complete management of the SR35.
  • Wide range of compatibility: Full compatibility with other external radio modems or integrated in a GNSS receiver.


$2,449.95 Tax excluded

1-2 Weeks Shipping
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The SR35 External Radio is a high-power radio modem for transmitting RTK corrections from a basic GNSS receiver. It has a transmission power of up to 35W and can reach distances of up to 50km. The radio has numerous settings that can define communication protocols, channel width and transmission frequency, thus full compatibility with other external radio modems or integrated in a GNSS receiver.

In addition to the radio itself, the package also includes the following items:

  • LM.GK224.AAZ: Cable with clamps to connect ext. battery and cable 30-350072
  • LM.GK185.ABL: Cable 5pin Lemo/5pin Lemo/SAE to connect GPS to ext. radiomodem/ext.battery
  • LM.GK186.ABL: cable to connect receiver and external radio
  • TRB1: holder for QC430/450A antenna on tripod
  • Soft bag for GPS and controller (SB-100)

This comprehensive package makes it easy to get started with the SR35 External Radio and ensures that you have everything you need to get the most out of it.


Returns Policy

We strive to ensure your satisfaction with every purchase from our store. If you are not completely satisfied with your purchase, you may return most new, unopened items within 30 days of delivery for a full refund. If the return is a result of our error, such as receiving an incorrect or defective item, we will also cover the return shipping costs.

To initiate a return, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu, and click the Return Item(s) button. We will notify you via e-mail of your refund once we have received and processed the returned item.

Please allow up to four weeks for your refund to be processed. This includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). However, in many cases, you may receive your refund more quickly.


We are proud to offer shipping to virtually any address in the world, with some restrictions on certain products and international destinations. When you place an order, we will provide shipping and delivery date estimates based on the availability of your items and the shipping options you choose. Please note that shipping rates for our items are weight-based, and the weight of each item can be found on its detail page. To comply with the policies of the shipping companies we work with, all weights will be rounded up to the next full pound.

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