Description
SATEL-TR4+ is a UHF data radio transceiver module in a lightweight single PCB. It features Satel’s highest data rates available in an integratable module, allowing up up 14.4kbps with FEC on a 12.5 kHz channel or 28.8kbps with 25 kHz channels. For sensitive applications, industry standard AES 128-bit encryption is available. This small, light module is designed to be integrated into a host device, for instance for transfer of GNSS correction data in a land surveying rover or RTK base station.
Compatibility spans a wide variety of SATEL modems with the 3AS/EASy protocol, with additional compatibility modes allowing for inter-operation with other radios including Leica, Topcon, Pacific Crest, Trimble, and others.
The SATEL-TR4+ is designed to be flexible. The following items can be customized:
- Mechanical fastening and its type
- Interface and antenna connector types
- Shape of the PCB (for large orders only)
A receive only module is available as the M3-R4+.
Please contact us to learn more about customization options.
Technical Specifications
| Frequency Range | 403 to 473 MHz |
|---|---|
| Tuning Range | 70 MHz |
| Carrier Power | 10 mW to 1 W |
| Receiver Sensitvity | up to -115 dBm, depending on modulation and error correction (see product brochure) |
| Modulation | GMSK, 4FSK, 8FSK, 16FSK |
| Data Interface Speed | up to 115200 bps |
| Electrical Interface | CMOS / UART |
| Packet Throughput | up to 28.8kbps (25kHz channel), 14.4kbps (12.5kHz channel) |
| Interface Connector | 1.27 mm pitch socket |
| Antenna Connector | HIROSE U.FL compatible type (adapter cables available for TNC, SMA, MCX, MMCX etc.) |
| Encryption | AES 128-bit (optional) |
| Operating Voltage | 3.8 – 5.5 VDC |
| Power Consumption | 0.89W RX, up to 4.8W Tx, 0.3W sleep |
| Operating Temperature Range | -30 °C to +70 °C |
| Size (H x W x D) | 57 x 36 x 6.9mm |
| Weight | 20g |



