TB 9-4920-358-24
Figure 9. MODE 4 SLS pulse setup.
(2) Initialize radar test set by selecting FUNCTION and ENTER. Set radar test set
INTERROGATOR menus as listed below:
(a) Menu 2 - M4: WORD C, S1 through S4 to ON, and S5 to OFF.
(b) Menu 3 - REPLY SIGNAL to MODE 4-3, M1 through MC OFF, RANGE
DELAY 1 s, CHAL SOURCE to INTERNAL, F2 OFF.
(c) Menu 4 - REPLY SIGNAL to MODE 4-3.
(d) Menu 16 - SOURCE to LOW PWR and RF to - 0 dB.
(3) Observe ACCEPT indication on the TI.
(4) Set oscilloscope to view pulses on CH1 and CH2 inputs. Reduce oscilloscope
TIME/DIV controls and adjust to display single pulses on CH1 and CH2 inputs.
(5) Measure pulse width of pulse on CH1. Pulse width will be between 0.3 and 0.6 s.
(6) Position base lines of CH1 and CH2 on top of each other. CH1 pulse will fit
inside CH2 pulse when both channels are coincident.
b. Adjustments. No adjustments can be made.
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