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Page Title:
Sectionalization Tests Using AN/UPM-137A. |
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 Control settings
Normal indication
Equipment under test
Test equipment
Procedure
Step
REPLY MODULATION-1X-2X
1X
AN/UPM-137A
(interrogator signal
simulator)
OUTPUT ATTEN 0-100 dBm
-6
TRANSMITTER FREQ
XTAL
TRANSMITTER-CW SOURCE
EXT 1090 MHz
HORIZONTAL-SYNC: EXT DC-
HORIZONTAL-TIME/DIV:
10 SEC
CALIBRATORS-XTAL MARK
(SEC): .1 & 1
CALIBRATORS-LEVEL
Midposition
VERTICAL-CHAN A-AC/DC
DC
VERTICAL-CHAN A-75
IN/OUT: IN
VERTICAL-CHAN A-VOLT/
DIV: 5
DISPLAY-CHAN A/ALT/
CHAN B: ALT
3
Same as step 2.
PUSH TO TEST: Continually press and
a. Adjust AN/UPM-137A rf signal gen- a. None.
release to observe specified conditions.
erator OUTPUT ATTEN 0-100
dBm control ccw until test set indi-
cates
REJECT. Then adjust control cw until
test set just indicates ACCEPT
b. Add AN/UPM-137A rf signal gen- b. -9 1.0 dBm
erator OUTPUT ATTEN 0-100
dBm control setting to cable atten-
uation marked on cable connected
to test set PROBE jack to deter-
mine rf output level
EXAMPLE
Control setting
-8.5 dBm
-0.9 dBm
cable atten.
9.4 dBm
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