SATELLINE-M3-TR4 OA is the next generation solution for data communications in traffic applications. The basic applications include traffic light priority requests, the display of real-time information on anticipated arrival times at bus stops, vehicle tracking and communication with the central transportation control computer.


Reliability and easy integration

The SATELLINE-M3-TR4 OA module is designed to be integrated in onboard computers. It provides a reliable private data communication links to several services. The module is compatible with existing SATELLINE-3AS-OA systems.

SATELLINE-M3-TR4 OA complies with the requirements of the Dutch KAR* (Korte Afstand Radio) specification for Public Transportation data communications.


Available model and product code:

  • SATELLINE-M3-TR4 OA (YM7450)
Frequency range 403…473
Tuning range 70 MHz
Channel spacing 6.25*), 12.5, 20*) and 25 kHz, software selectable*)uses 12.5 kHz channel width
Sensitivity/Carrier power -116 dBm/ 0.02, 0.05, 0.2, 0.2, 0.5, 1 W
Operating voltage +4 Vdc
Power consumption RX/TX@1W 0.73 W/ 4.7 W
Size/Weight 57 x 36 x 6.9 mm, 20 g
Connectors HIROSE U.FL