It represents the next step in the development of the R-450C family, which is well known and widely used by the Polish Armed Forces. The new radio fully retains the capabilities of its predecessor in the 225–400 MHz band, using Transbit’s proprietary waveforms, including MultiChannel CSMA, TDMA and CSMA-FH, operating within resilient, self-organizing MESH/MANET networks. As a result, it is fully compatible with R-450C-01 radios already fielded by the Polish Armed Forces, including in the NSM coastal missile system program, Pilica/Pilica+ air defense systems and command vehicles. These radios have also been selected for the new Narew and San air defense system programs currently under development.
The black module visible on the side of the radio is a fully independent radio channel for interoperability with L3Harris radios / Photos: Przemysław Gurgurewicz, MILMAG
A new feature of the R-452C-01 is the addition of a second, fully independent radio channel covering a wider frequency range (225–450 MHz, 698–970 MHz and 1250–2600 MHz) and integrated with a module supporting the TSM™ waveform. This enables direct interoperability and data exchange with, among others, L3Harris Falcon IV-family radios operated by the Polish Armed Forces and allied NATO forces, including the AN/PRC-158, AN/PRC-163 and AN/PRC-167. As a result, networks based on Transbit software-defined waveforms can be linked with coalition networks within a single radio platform. This solution enables cooperation between systems from different manufacturers used by the Polish Armed Forces, thereby increasing interoperability with existing military radio networks.
The second radio channel was introduced by adding an additional electronic module. Both channels can operate simultaneously, allowing a single platform to combine networks using Transbit waveforms with networks based on TSM™. In this way, Transbit is addressing the need to integrate communications systems based on equipment from different manufacturers. The company also plans further development of this family of devices. A modular architecture is envisaged, allowing electronic modules designed for interoperability with different classes of communications equipment to be added depending on customer requirements. The new design is scheduled for the third quarter of 2027.
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