Each life raft is test inflated before repacking. After use, the "hayago" could be kept for repacking or discarded. Compaction and grain repacking, bioturbation, as well as mineralogical changes all occur at varying degrees. In late 2017, XHTJB was approved to move to RF channel 15 for repacking purposes. Repacking them would just create larger files and increase decompression time. Repacking of the helices switches the conformation into an outward-facing state. These stations broadcast on channel 33, where XHPNW will be moved following repacking. Prior to repacking on October 18, 2018, XHTPZ broadcast on physical channel 39.