shield factor

shield factor

[′shēld ‚fak·tər]
(communications)
Ratio of noise (or induced current or voltage) in a telephone circuit when a source of shielding is present to the corresponding quantity when the shielding is absent.
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These include possible verification testing of shielding efficacy in actual radiation-contaminated areas, and initiatives to further improve the seat's user-friendliness and its shield factor.