The file Ap3g1-k9w7-tar.152-2.jb.tar is a recovery image.
. Since this is a technical firmware file, here are three options for a "post"—depending on whether you are sharing it with a community, documenting a lab, or selling the hardware. Option 1: Technical Documentation/Lab Log Ap3g1-k9w7-tar.152-2.jb.tar
tar -xvf ap3g1-k9w7-tar.152-2.jb.tar