B ATCRBS TRANSPONDER KT 76C
Rev 3, May 2004 IM 006-10545-0003.dwd Page 3-2
Standby
- The unit is energized, but is inhibited from replying to any interrogation. “SBY” is annun-
ciated on the display in this mode. The altitude display is blank (see Figure 3-2).
FIGURE 3-2 Standby
TST
- The unit will illuminate all segments. The unit will remain in TST mode until the mode se-
lection is changed (see Figure 3-3).
FIGURE 3-3 Test
On
- The unit is able to reply to all valid Mode A and Mode C interrogations, however; the altitude
information of Mode C reply is suppressed. The altitude display is blank and the ID 4096 code is
displayed on the right. “ON” is annunciated on the display in this mode (see Figure 3-4).
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