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The SATELLINE-M3-TR4 radio module is the mobility solution. With a very small footprint of 57 x 36 x 6.7mm and a weight of 18g, it adapts naturally to any type of embedded or portable application.

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The M3-TR4 module is in the form of a PCB that integrates easily with the application motherboard. It has the same form factor as the M3-TR8 module that can be used in the 869MHz free band.

It is compatible with the radio modems of the SATELLINE range. Associated with a 25 / 35W EASy-Pro high-power radio modem, it allows the recovery of RTK data for positioning over long distances. In a network of high points equipped with EASy radio modems, it will be easily integrated into a mobile fleet.

Its main characteristics are :

  • Large switching band : 403…473 MHz
  • Configurable transmission power : 100, 200, 500 or 1000 mW
  • Very good receiver sensitivity
  • Modulation : 4, 8 or 16FSK
  • Radio speed : from 9600 to 28800 bits/s
  • Configurable channel spacing at 12.5 or 25 kHz
  • Power supply : 4 VDC

The radio modem is configured on a PC, using a standard terminal or the SATEL configuration manager.

Advanced Features

The SATELLINE-M3-TR4 modules include advanced addressing, repetition and routing features. It is possible to simply create networks in bus, star or extended topology. Automatic routing offers an overhop function that is particularly useful for managing mobile devices


The SATELLINE-M3-TR4 module is compatible with SATELLINE series modems (3AS included) and SATEL radio modules.

It is compatible with Pacific Crest-4FSK / GMSK / FST protocols.

Integration support

Comatis provides support for the integration of radio modules on printed circuit (coexistence of the ICs, handling of the external interferences, electromagnetic compatibility …)


403 … 473 MHz

Switching band

70 MHz

Channel spacing

12.5 / 25 kHz, configurable


-102 dBm (25 kHz spacing), -116 dBm (12,5 kHz spacing)

Transmission power

From 100mW to 1W, configurable

Radio transmission speed

From 9 600 bps to 28 800 bits/s

Power supply

+4 VDC

Max consumption

RX 0,83 W / TX 4,7 W (at 1W power)

Size / weight

57 x 36 x 6,7 mm / 18 g

Antenna connector

U.FL (adapter cables available for TNC, SMA, MCX, MMCX…)

Serial interface

CMOS-UART (Socket pitch 1.27mm)


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