TIC TR-220 - Mode S Automatic Testing

Rev E TR-220 90 008 088-1
2-26
2.13.2 Mode S Automatic Testing
1. Turn the Test Set “ON” by toggling the ON/OFF switch to the ON position.
Ensure the green LED illuminates.
2. The Test Set commences the Self Test. “PASS” is displayed briefly if no failures
are detected.
3. Utilize the procedures as outlined in 2.9 to select the preferred antenna method
for the following tests.
4. Turn the UUT FUNCTION switch to the XPDR position. The Test Set will
automatically determine the transponder capability as being Mode S capable and
display the appropriate start page with the Communication capability of the
Transponder (COMM NO, COMM AB, COMM ABCD).
5. Toggle the AUTO/TEST/MANUAL switch to the AUTO position. The Test Set will
begin testing the transponder, without interruption, IAW figure 2-7. Each test will
be displayed as “TESTING . . .” but no results will be shown until the Test Set
as completed all tests.
6. If no failures are detected, the Test Set will cease testing and display the
following alternating display:
NOTE
Self Test
PASS
Capab Comm AB EHS
AIR Press A/M II:14
FID: yyyyyyy 10000’
54dB 1090.0MHz
H: A02008 O:50020010
1234 USA:N107PP
M A /
Testing . . .
The final alternating display will indicate
the transponder decoded Flight ID
Code (FID: YYYYYYY), Aircraft altitude
(10000’), UUT Power (54dB), Freq.
(1090.0), aircraft address in both
Hexadecimal and Octal (A02008,
50020010), and the Country code and
tail number (USA:N107PP) if available.
A
ppendix A lists available country codes. If the Test Set can not locate
the countr
y
al
g
orithm, “??????” will be dis
p
la
y
ed.