Revision A
T-48 90 008 026
2-16
Test Complete. A DF=5 Reply will display the aircraft 4096 code
(1234), Flight Status (AIR) and Receiver Efficiency.
.
NOTE
TEST
button pressed to advance to next test.
MODE S Surveillance Altitude test initialized. The Test Set transmits
an UF=4 Interrogation.
The DF=4 reply will display reported altitude (to the nearest 25 ft.
level), flight status and the receiver efficiency.
TEST
button pressed to advance to next test.
MODE S Short Air to Air Surveillance test initiated. The Test Set will
transmit a short special interrogation, UF=0 format.
The Mode S transponder will reply with a short special reply in DF=0
format. Aircraft address in Hexadecimal, aircraft altitude, and flight
status is displayed.
TEST
button pressed to advance to next test.
MODE S COMM A Identity test initialized. The Test Set transmits a
COMM A/B, ABCD transmission utilizing a UF=5/RR:18 format. This
tests a transponders communication and data-link capabilities.
The transponder will reply in the DF=21 format. The display will show
the Flight ID code and decoded 4096 field. Receiver efficiency as a
percentage is also displayed.
TEST
button pressed to advance to next test.
MODE S SURV FS: AIR
1234 100% REPLY
MODE S SURV ALTITUDE
TESTING . . .
MODE S SURV FS: AIR
10,000FT 100% REPLY
MODE S SURV SHORT
TESTING . . .
MODE S SRV 100%REPLY
YXXXXX GND 10,000FT
MODE S COMM IDENTITY
TESTING . . .
IDENTITY: DLXXXXXXX
1234 100% REPLY
Possible Flight Status Codes are
AIR
(Airborne),
GND
(Ground),
AL/AR
(Alert/Airborne),
AL/GND
(Alert/Ground),
AL/SP
(Alert/SPI), and
SPI
.
