The [[Reed-Solomon]] method is used as the initial [[error-correcting code|error-correcting]] [[block code]] prior to the selected secondary encoding scheme.
==Applicability to [[Project Constellation|Constellation]]==
The [[Project Constellation|Constellation]] missions will be different from previous NASA campaigns, in that the number of simultaneously interacting space and ground systems will be larger, and systems will need to coordinate with each other both to achieve their science objectives and to accomplish the 'routine' mechanics of mission operations. The interaction between combinations of these systems is deemed important, and the SCaN program must provide and maintain the data links. The small set of Constellation RF links is based on Space Network (SN) standards that are currently used in human spaceflight.<ref name="70022-2">{{cite book| title =CxP 70022-2 Rev. B, Constellation Program Command, Control, Communication, and Information (C3I) Interoperability Standards Book, Volume 2: Spectrum And Channel Plan| edition = Rev. B| last = NASA| first = | coauthors = | year = September 8, 2008 | publisher = National Aeronautics and Space Administration| id =CxP 70022-2 | pages = }}</ref>
