Rev E TR-220 90 008 088-1
2-15
6. To advance, toggle the AUTO/TEST/MANUAL switch to MANUAL. The next test
in sequence will commence.
7. To advance, toggle the AUTO/TEST/MANUAL switch to MANUAL. The next test
in sequence will commence.
8. To advance, toggle the AUTO/TEST/MANUAL switch to MANUAL. The next test
in sequence will commence.
M C 6520 10000’ 100%
0.45 – 20.35 – 0.45 PASS
Test Complete. Display indicates the UUT
Altitude Gray Code (6520=1000’), Rcvr.
Efficiency as a percentage (100%),
Transponder Framing Pulse widths (0.45)
and separation measured in .05 µs
increments (20.35 µs).
n alternating display indicates the Mode
C Reply Delay and Jitter with a P(ass) or
F(ail) indication for each measurement
.**
M C /
Testing . . .
Test Complete. Display indicates the UUT
4096 Octal Code (1234), Receiver
Efficiency as a percentage (100%),
Transponder Framing Pulse widths (0.45)
and separation measured in .05 µs
increments (20.35 µs).
n alternating display indicates the Mode A
Reply Delay and Jitter with a P(ass) or
F(ail) indication for each measurement.
**
Mode C Test initialized.
Sensitivity
Testing . . .
UUT Receiver sensitivity tests (MTL) for
modes A and C are initiated.
Mode A SLS
Testing . . .
Mode A SLS tests are initiated. The test
set makes alternating interrogations with
and without the SLS pulse.
SLS P1>P2 100% PASS
P1=P2 0% PASS
When P1>P2 (SLS pulse at P1 - 9dB) the
transponder reply efficiency should be
greater than 99%. For P1=P3 (SLS) The
transponder reply efficiency should be less
than 1%
M A 1234 100%
0.45–20.35– 0.45 PASS
M A Rply 3.11us P
M A Jitter 25ns P
M C Rply 3.11us P
M C Jitter 25ns P
** Denotes a test only available with
Software Revision 5.00 or
reater.
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