THIRD ECHELON TEST SET (TETS)
The USMC's Marine Corps Automatic Test Systems (MCATES) is a DoD ATS Family with the Third Echelon Test Set (TETS), AN/USM-657, being the basic family member within MCATES.

Click here for a photo of TETS in its stowed configuration. (256Kb)

Click here for a photo of TETS in its deployed configuration. (248Kb)

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