Rev E TR-220 90 008 088-1
2-20
13. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
14. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
NOTE
15. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
16. Toggle the AUTO/TEST/MANUAL switch to MANUAL to advance to the next
sequence:
M S Surv Alt /
Testing . . .
Mode S Surveillance Altitude Test. Test
Set will transmit an UF=4 interrogation.
Test complete. A successful DF=4 Reply
will display reported altitude (10000’) and
Receiver Efficiency as a percentage
(100%).
M S Surv Alt /
10000’ 100%
M S Surv Srt /
Testing. . .
Mode S Short Air to Air Surveillance Test.
Test Set transmits a special short UF=0
interrogation.
USA: N107PP /
A02008 VS:AIR 100%
USA: N107PP /
50020010 VS:AIR 100%
M S Comm Id /
Testing . . .
Mode S Communication Identity Test. Test
Set will transmit a COMM A/B transmission
utilizing the UF=5/RR:18 field. This tests
the transponders communication and data-
link ca
abilities.
Test complete. A successful DF=21 Reply
will display 4096 code (1234), Flight ID
(yyyyyyyy) and Receiver efficiency as a
percentage (100%).
M S Comm Id /
1234 yyyyyyyy 100%
Appendix A list available country codes. If the Test Set can not locate the
country algorithm, “??????” will be displayed.
Test complete. A Mode S transponder
will reply in a DF=0 format. Alternating
display will indicate the Country code
(USA) and tail number, aircraft address
in Hexadecimal (A02008) and Octal
(50020010).
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