IFR » Instruments and Nav Aids » Transponders
56.14 Transponders
56.14.2 Describe the following functions on a typical transponder control panel:
(a) standby (SBY);
(b) ON;
(c) ALT;
(d) test (TST);
(e) IDENT;
(f) code selection controls; and
(g) reply monitor light.
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