All VLBI software is coded subject to the same standard and thus meets the portability standards set by the package as a whole. The tasks specific to VLBI are predominantly concerned with the loading, editing and calibration of VLBI data in the uv -plane. Both spectral-line and continuum data reduction are supported, as well as polarization calibration and imaging. Separate tasks exist to load data from each of the correlators mentioned above, and to make the digital corrections appropriate to the specific instrument. The data can be examined using a range of data listing or graphing tasks and editing can be performed using an interactive graphical editor or in a batch mode.
Separate tasks exist specific to spectral-line calibration and polarization calibration.
Almost all calibration is implemented in tables separate from the underlying uv data, in keeping with the general calibration formalism. This is an active area of work within at present. The advent of the VLBA has also precipitated the development of new VLBI software within , and the present emphasis is on making the reduction of VLBA data as routine and accessible as possible with the aim of increasing data throughput and expanding the size and range of the VLBI user community.