Product Description



Industrial UHF/VHF Modem

UHF data transceiver module in a lightweight single board structure.


SATEL-TR4+ is a UHF data transceiver module in a lightweight single board structure. It is designed to be integrated into a host device, e.g. to transfer GNSS correction data in a land surveying rover or RTK base station.

  • 70 MHz tuning range (403…473 MHz) and selectable channel width (12.5, 20 and 25 kHz)
  • Extended operating voltage range
  • Moderate power consumption
  • AES128 support as default, AES256 as an order option
  • Polling Protocol as an order option
  • SATEL-TR4+ with AES128 encryption support (YM7470)

  • SATEL-TR4+ without AES128 encryption support (YM7475)

  • SATEL-TR4+ with AES128 encryption support, DTE connector at TOP (YM7480)

  • SATEL-TR4+ without AES128 encryption support, DTE connector at TOP (YM7485)


Easy installation and configuration

SATEL-TR4+ is supplied without a housing in PCB format with RF-shielding, facilitating installation into the customer's own housing or into a host device. The radio module configuration can be done with the SATEL SL-commands or SATEL Configuration Manager software.

Compatible and customizable

SATEL-TR4+ is compatible with widely used SATEL radios, such as SATELLINE-M3-TR4, -EASy, -Easy Pro and SATEL-EASy+, and also with other manufacturers' radio protocols.

SATEL GO radio modules match all the needs of OEM customers. Please contact us for various possibilities to create a customized solution for you.


Frequency range

403 … 473 MHz

Tuning range

70 MHz

Channel width

12.5 kHz / 20 kHz/ 25 kHz (software selectable)

Frequency control

Synthesized 6.25 kHz tuning resolution (10 kHz @ 20 kHz spacing)


4FSK, 8FSK, 16FSK, GMSK *Ask availability

Carrier power

0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1 W programmable


57 x 36 x 6.9 mm


20 g


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