The graph depicts a general comparative shielding effectiveness (attenuation in dBs) of all three types of SHIELD-FLEX conduit.

The dotted line indicates a comparison to standard unshielded liquidtight flexible conduit Type LA.  The spectrum of test frequency is from 1 MHz to 10 MHz Electric Field, to 100 MHZ to 1 GHz Planewave Field and 2 GHz to 6 GHz Microwave Field.  Tests were performed per MIL-STD-285 on 1″ trade size conduit using standard liquidtight fittings from Thomas & Betts series 5300.  Results are based on controlled laboratory conditions and may vary in actual field installed conditions.