IN Brief:
- FMV has ordered Bittium Tough SDR radios for Swedish Army testing and pilot use.
- The approximately €740,000 order is Sweden's first procurement under the Nordic C4I framework signed in November 2025.
- Tough SDR supports multiple waveforms, including the NATO-standardised ESSOR High Data Rate Waveform.
Sweden’s Defence Materiel Administration has ordered Bittium Tough SDR radios for Army testing and pilot use, marking the first Swedish procurement under the Nordic tactical communications framework established with Finland in late 2025.
The approximately €740,000 order from FMV will put Bittium software-defined radios into Swedish Army trials covering tactical voice, data, and video communications. The equipment is intended for networks spanning vehicles, dismounted personnel, and unmanned systems.
The contract is modest compared with a fleet-wide radio replacement, but the procurement route gives it greater significance. Finland and Sweden signed a ten-year framework with Bittium in November 2025 covering command-and-control communications, while other Nordic countries can join through the wider regional cooperation structure.
That creates a route for tactical communications to converge without requiring every country to adopt an identical equipment configuration. Finland, Sweden, Denmark, and Norway retain different vehicle fleets, command systems, security requirements, and procurement histories, so common radio hardware across every unit would be difficult to impose quickly.
Software-defined radio offers another route to interoperability. Much of the radio’s behaviour is controlled through software and waveforms rather than fixed hardware, allowing one family of equipment to support different network structures, data rates, security configurations, and operating conditions.
Bittium’s Tough SDR family supports several waveforms, including the NATO-standardised ESSOR High Data Rate Waveform. ESSOR was developed to improve interoperability between national tactical radio systems by providing common waveform technology across different manufacturers and equipment families.
For the Swedish Army, the pilot provides an opportunity to test how that architecture performs in operational conditions rather than relying on specification sheets. Tactical radios have to maintain useful links while units move, disperse, enter difficult terrain, and operate alongside other emitters competing for the same spectrum.
Range and bandwidth are only part of the evaluation. Antenna configuration, battery life, user interface, network management, encryption, physical robustness, and the time required to establish or recover a network can all have a greater effect on unit performance than the maximum data rate achieved under controlled conditions.
Electronic warfare adds another layer. Bittium positions Tough SDR for contested-spectrum operation, where software-defined waveforms can be adapted as communications conditions change. That flexibility does not make the network immune to detection or jamming, but it gives operators more options for changing how information is transmitted without replacing the complete radio.
The pilot should also show how well Swedish configuration requirements can coexist with interoperability. Finland already uses Bittium tactical communications, while Sweden may require different encryption, command-system interfaces, or vehicle installations. The supplier has to preserve common communications functions without forcing both customers into identical national architectures.
Vehicle integration will be a substantial part of any wider deployment. Tactical radios increasingly sit inside digital vehicle architectures connecting battle-management software, navigation, remote weapon stations, sensors, and dismounted users. The radio carries traffic between those systems, but the physical installation, power supply, antennas, and software interfaces determine whether the network performs consistently across the fleet.
Unmanned platforms increase the bandwidth and resilience requirement. Drones and ground robots can generate telemetry, imagery, and command traffic at volumes that exceed traditional voice-centric networks, while they may operate beyond direct line of sight or in positions where links are intermittent.
That makes network management increasingly important. A tactical system has to prioritise traffic when bandwidth falls, maintain essential command messages when video cannot be carried, and restore connectivity as platforms move between network nodes.
The ten-year framework provides a procurement structure through which that communications architecture can evolve. Sweden can test the radios in pilot use, identify integration and usability issues, then place additional orders without recreating the contracting mechanism for every stage of the programme.
It also gives Bittium a longer industrial horizon. Software-defined radios require continuous waveform, cybersecurity, and hardware development, and a framework covering several Nordic customers can support common upgrades while still allowing national configurations to diverge where required.
The current €740,000 order does not represent a Swedish fleet decision, and the Army trials remain the immediate focus. Their importance lies in moving Nordic tactical communications from framework-level cooperation into actual equipment evaluation by another participating force.
If Sweden proceeds to larger procurement, the test will be whether Tough SDR can deliver national requirements and allied interoperability without creating separate technical baselines that erode the benefits of the common framework. The pilot gives FMV the first opportunity to answer that question with soldiers and systems rather than programme documentation.
