The intent of the Digital Intermediate Frequency Interoperability (DIFI) standard 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. The articles linked below describe how to run the examples which show how to use the DIFI source and sink blocks that implement the DIFI standard for use with GNU Radio.