This program shows the packets in a USB communication, by decoding the output of a command like "cat /sys/kernel/debug/usb/usbmon/0u" into more human-readable form
The Simple Network Enhanced Zulu-time Device (SNEZ-D) or Aftermarket CHU Decoder (A-CHU) is a complete radio-to-interface time reference in-a-box with software that decodes the CHU radio signal, and can be interfaced to NTP servers.