DiFi
High-bandwidth RF over IP for virtualised satellite ground infrastructure
Filtronic’s DIFI enables the transition from analogue RF systems to fully virtualised, cloud-ready satellite ground architectures. By digitising RF signals and transporting them securely over IP networks, the platform reduces infrastructure complexity while delivering exceptional bandwidth, flexibility and performance.
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Designed for:
Aerospace
Defence
Space
Telecoms Infrastructure
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- Overview
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- Performance
Overview
Accelerating the shift to digital IF
The DiFi is a high-performance RF over IP digitiser/de-digitiser engineered to support next-generation satellite communications and defence networks.
Designed in alignment with the DIFI (Digital Intermediate Frequency Interoperability) standard, it enables seamless interoperability across multi-vendor ecosystems while simplifying ground segment design.
By replacing analogue IF infrastructure with IP-based connectivity, DiFi allows operators to scale capacity, reduce cost and deploy more agile, resilient systems.
Why choose the DiFI?
- Simplify infrastructure – Eliminate complex analogue IF chains, baseband modems and cross-site cabling. Replace hardware-heavy architectures with a streamlined, IP-based solution.
- Reduce CAPEX and OPEX – Lower upfront infrastructure costs and significantly reduce ongoing maintenance, power and facility requirements.
- Enable virtualisation – Transport RF signals over standard Ethernet networks to support cloud-based processing and fully virtualised ground stations.
- Improve resilience and security – Centralise critical infrastructure and reduce vulnerability at remote antenna sites, with secure IP-based signal transport.
- Scale with demand – Support increasing data throughput from high-throughput satellites, LEO constellations and advanced defence applications.
DiFi highlights
Applications
DiFi ensures interoperability across the growing ecosystem of digital IF solutions.
Enables custom IF filtering and software-defined capabilities allow future upgrades
DiFi provides the foundation for scalable, secure and efficient RF signal transport.
DiFi converts analogue RF signals into digital IP packets for transport over standard Ethernet networks, eliminating signal degradation over long distances.
DiFi is ideally suited to: Satellite ground stations and teleports, LEO constellations, Defence communication systems and more.
Performance key data
| Key specifications | Stats |
|---|---|
| Channels | 6 Tx / 6 Rx |
| Bandwidth per channel | up to 2,500 MHz |
| RF frequency range | ~150 MHz to 6.5 GHz |
| IP interface | 2 × 100GbE (QSFP28) |
| Sampling resolution | 8, 10, 12 or 14-bit |
| Form factor | 1RU half-width |
| Timing | 10 MHz & 1PPS reference support |