Rev E TR-220 90 008 088-1
2-25
6. If no failures are detected, the Test Set will cease testing and display the
following alternating display:
NOTE
7. If a failure is detected during any test in the Automatic sequence, the Test Set
will “STOP” at that test and display the failure along with the Framing Pulses,
Pulse Width, and separation in µs.
8. The operator may override and advance to the next test in sequence by toggling
the AUTO/TEST/MANUAL switch to the AUTO position. It is recommended that
the operator determine the cause of the failure before advancing. Subsequent
tests may be inaccurate or misleading.
9. The operator may also elect to repeat the failed test by toggling the
AUTO/TEST/MANUAL switch to the MANUAL position.
END OF MODE A/C AUTOMATIC TESTS
Power, Receiver, Freq /
54dB -78dB 1090.0
Mode A: 1234
Mode C: 10000’
The final alternating display will indicate
the UUT power (54dB), Receiver
Sensitivity (-78dB), Frequency
(1090.0), 4096 Octal Code (1234), and
the UUT Altitude (10000’) in 100 ft.
increments.
M C
0.45-20.35-0.35 FAIL
M C /
No Reply
Illustrate a Mode C failure. The first
display indicates the failure, the second
screen displays the Framing Pulse
widths (0.45 & 0.35) and their
se
aration
20.3
in
s.
Power measurements are measured in Watts or dBm. The Test Set only
displays dB due to display restrictions. To change the display to indicate
Watts, access the SETUP menu and toggle to the Power in Watts menu.
Use the UP/DOWN toggle to make a selection.
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