TB 9-6625-2197-40
(a) Menu 10: MAIN FREQ to 1090 MHz.
(b) Menu 11: MODULATION to EXT.
(c) Menu 14: 0 TRIGGER to INTERNAL.
(d) Menu 16: SOURCE to LOW PWR and RF to -24.
Figure 11. Receiver Sensitivity - Equipment Setup.
(3) Connect control box TJ 28 connector to radar test set oscilloscope CH 1.
(4) Set radar test set oscilloscope controls for parameters as listed in (a) through (e) below:
(a) Autostore to RUN.
(b) TRIGGER SOURCE to 2.
(c) TIME/DIV to 5 s.
(d) Press MAIN/DELAYED pushbutton to enable menu TIME REF and press
soft key to LFT.
(e) VOLTS/DIV to 1.0 V and Invert to Off.
(5) Position pulse generator controls as listed in (a) through (c) below:
(a) 450 ns pulse width.
(b) 25 kHz Frequency.
(c) Approximately 5 V positive output level.
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