RAPTOR  CAPTURE requires an additional module to be added to GNU Radio. This module can be foun d at
https://github.com/tkuester/gr-reveng
the page includes all steps needed to add this module.

Raptor Captor will list the binary output of ford key fobs in the 902 and 903 Mhz range.
Other tools that will assist in decrypting Ford keyfobs include:
Inspectrum (Mike the author is a Genius)
Universal Radio Hacker (URH)

I will add more notes shortly.