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Digital Intermediate Frequency Interoperability (DIFI) Consortium

“Takeaways from the 2023 PlugFest” with A.J. Vigil

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June 17-21, 2024 – DIFI PlugFest 2024 Europe

UK Satellite Applications Catapult’s Harwell Campus is the site of the second DIFI PlugFest.  There will be an Industry session on Thursday, which will be open to all DIFI members.  A Showcase on Thursday afternoon will be open to all, and we encourage you to bring companies and colleagues whose organizations might benefit from DIFI membership.  Registration is required and now closed due to reaching full capacity.

Our Mission

The mission of the Digital Intermediate Frequency Interoperability (DIFI) Consortium is to enable the digital transformation of space, satellite, and related industries by providing a simple, open, interoperable Digital IF/RF standard that replaces the natural interoperability of analog IF signals and helps prevent vendor lock-in. A truly interoperable digital IF will enable transformation to a virtualized ground segment, reducing the total cost of ownership and significantly boosting network and terminal agility and scalability.

IEEE-ISTO Std 4900-2021:  Digital IF Interoperability Standard, v1.2.0 – August 2023

The data plane interface provides the ability to transmit and receive digitized IF data and corresponding metadata over standard IP networks. This interface is meant to be fully compliant with the VITA 49.2 standards.  To download the Standard, please complete the contact form below.


The newly formed consortium is in the process of implementing administrative structures and recruiting additional member companies and organizations with an interest in space networks to become active participants in DIFI.  Please review the Governing Documents and join now!

Electronically-steered flat-panel antennas (ESAs) are on a clear evolutionary path from high-cost terminals for single-beam/single-use applications to increasingly affordable offerings, many with some combination of multi-beam, multi-band, and multi-orbit capabilities. Supporting these flexible antenna systems will drive demand for digital-based ground systems for signal routing and processing. The DIFI Consortium is taking up the challenge of setting up and managing services through these antennas in a way that will enable interoperability between antenna systems and digital ground systems.

If you would like to participate in this working group, please click the join button to be part of this exciting endeavor.

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