equisignal localizer

equisignal localizer

[¦e·kwə¦sig·nəl ′lō·kə‚līz·ər]
(navigation)
An aircraft guidance localizer in which the localizer on-course line is centered in a zone of equal amplitude of two transmitted signals; deviations from this zone are detectable as unbalance in the levels of the two signals. Also known as equisignal radio-range beacon; tone localizer.