CREW= Counter-Radio controlled improvised explosive device Electronic Warefare (CREW).
This counter IED system is manufactured by SRC.
Here is a link to SRC's website: SRC CREW Duke Page
Here is the manufacturers PDF promotional literature: CREW_Duke.pdf
There have been three versions of the system to date....v1, v2 and currently on v3.
The SRCTec CREW Duke system is a vehicle-mounted electronic jammer designed to prevent the remote detonation of land mines and IED's.
The CREW Duke V2 is the US Army’s CREW 2.0 system, comparable to the Joint CREW (JCREW) 2.1. The Duke V2 Upgrade improves the Duke’s capability to the level of the JCREW 3.2 system.
Joint CREW (JCREW)- Three versions currently in use are:
3.1= Man Portable
3.2= Vehicle Mounted
3.3= Family of JCREW systems.