Section 916
BENDIX/KING KT 76A Transponder
916 - 4 Page Date: 31. January 2006
Pilot´s Operating Handbook
EXTRA 300S
7600 Loss of communications
7700 Emergency
7777 Military interceptor operations (Never squawk this code)
0000 Military use (Not enterable)
Avoid selecting code 7500 and all codes in the 7600-7777 range. These trigger special indicators
in automated facilities. Only the code 7500 will be decoded as the hijack code. An aircraft’s
transponder code (if available) is utilized to enhance the tracking capabilities of the ATC facility,
therefore care should be taken when making routine code changes.
916.1.2 REPLY LIGHT
During normal operation, the flashing Reply Light indicates that the KT 76A is functioning properly
and replying to interrogations from ground radar. Interrogations occur at 10-15 second intervals,
corresponding to each radar sweep. Frequently, the reply light will blink almost continuously,
meaning that the transponder is responding to interrogations from several radar stations.
916.1.3 TESTING THE KT 76A
Allow a warm-up time of about 25 sec. before testing the KT 76A. Switching the function selector
to the TST position a series of internal tests is performed to check the KT 76A. If no faults are
detected the reply-light illuminates.
916.2 LIMITATIONS
Not Applicable.
916.3 EMERGENCY PROCEDURE
IMPORTANT CODES
7500 Use to report a hijacking.
7600 Signifies communication failure.
7700 Reserved for emergencies.
To Next Page
Loading...
