Rev E TR-220 90 008 088-1
2-19
10. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
11. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
12. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
NOTE
M A Only /
Testing . . .
M A Only /
PASS
Mode A ONLY Test initialized. Test Set
transmits an ATCRBS ONLY All-Call.
Mode S transponder will not reply to an
ATCRBS Only All-Call. A “PASS” signifies
the Mode S transponder did not respond.
M C Only /
Testing . . .
Mode 3C ONLY Test initialized. Test Set
transmits an ATCRBS ONLY All-Call.
Mode S transponder will not reply to an
ATCRBS Only All-Call. A “PASS” signifies
the Mode S transponder did not respond.
M C Only /
PASS
M S Surv ID /
Testing . . .
Mode S Surveillance Identity Test
initialized. Test Set will transmit an UF=5
interrogation.
Test complete. A successful DF=5 Reply
will display the aircraft 4096 Octal code
(1234), Flight Status (Air), and Receiver
Efficiency as a percentage.
M S Surv ID /
1234 FS: AIR 100%
Possible Flight Status Codes are
I
(Airborne), GND (Ground), AL/A
(Alert/Airborne), AL/GND (Alert/Ground), AL/SP (Alert/SPI), and SPI.
SI Lockout /
Testing . . .
SI Lockout
PASS 18 sec
The Test Set issues a SI Lockout
command (37) and verifies that UUT will
not respond for minimum of 3 seconds and
maximum of 18 seconds.
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