/etc/xdg/menus/applications-merged/hamradio.menu is in extra-xdg-menus 1.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/extra-xdg-menus/hamradio.menu
/usr/share/extra-xdg-menus/hamradio.menu