B ATCRBS TRANSPONDER KT 76C
Rev 3, May 2004 IM 006-10545-0003.dwd Page 3-3
FIGURE 3-4 Unit ON
Altitude
- The unit is able to reply to all valid Mode A and Mode C interrogations. The altitude in-
formation will be sent in Mode C replies. The ID 4096 code will be displayed on the right and the
altitude displayed on the left. “ALT” and “FL” are annunciated on the display in this mode (see
Figure 3-5).
FIGURE 3-5 Altitude
3.2.2 FRONT PANEL OPERATION
A. IDENT
Depressing the “IDT” push button causes the special position identification
pulse (SPI) to be appended to Mode A replies for a period of 18 ± 2 seconds.
During this period the KT 76C will annunciate the “R”. An input pin is provided
on the rear connector for an external ident pushbutton (see Figure 3-6).
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