DATASHEET:
Overview
The Stonex SR35 external UHF radio modem is used to transmit RTK corrections from a base station, but can also be used as a radio receiver. In addition, the retransmission function can be activated, or the radio placed between a base and a rover increasing the coverage area of the RTK correction. Finally, the Network Repeater functionality allows the SR35 to receive an RTK correction through the integrated GSM modem and retransmit it through the radio modem (Bridge Functionality).
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. For a simple configuration of the radio it is possible to use the PC software or the APP developed in an Android environment which allows a fast and complete management of the SR35.
Technical Specifications
| General | |
| Frequency: | 410–470 MHz |
| Operating Modes: | Transceiver Transmitter Radio Repeater Network Repeater |
| Operating Voltage: | 9V~16V |
| Frequency Stability: | ±1ppm |
| Channels: | Up to 200 programmable channels (user selectable) |
| Bluetooth: | 4.0 |
| GSM: | 4G |
| Data Modem | |
| Data Rate: | 4800bps/9600bps/19200bps |
| Data Speed of Serial Interface: | 9600, 19200, 38400, 57600, 115200 bps |
| Modulation: | GMSK/4FSK |
| Protocols: | Trasparent EOT Trimmark Trimtalk Satel |
| Channel Width: | 12.5KHz/25KHz |
| GSM Modem version USA | |
| Network: | 4G: B2(1900), B4(AWS-1700), B5(850), B12/B13(700) 3G: B2(1900), B5(850) Micro SIM card |
| GSM Modem version Europe | |
| Network: | 4G: B1(2100), B3(1800), B7(2600), B8(900), B20(800) 3G: B2(2100), B8(900) 2G: B3(1800), B8(900) Micro SIM card |
| Physical | |
| Size: | 175 mm (H) × 130 mm (W) × 86.5 mm (D) |
| Weight: | 2 kg |
| Operating Temperature: | -40°C to 65°C (-40°F to 131°F) |
| Storage Temperature: | -50°C to 85°C (-58°F to 185°F) |
| Protection Class: | IP67 |
| Material: | Aluminum |
Part Numbers
B45-460215 – SR35-E UHF Radio Modem Bundle (mainly dedicated for Europe but compatible for Asia and Africa)
B45-460216 – SR35-U UHF Radio Modem Bundle (mainly dedicated for USA but compatible for South America, Canada and Australia)
Ordering
The SR35 external UHF radio modem from Stonex is available through TerrisGPS. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.
