TB 9-6625-2197-40
(31) Set control box RPT switch and PWR switch to OFF.
(32) Connect equipment as shown in figure 5, CONNECTION B.
(33) Repeat (2) and (3) above to select MODE 3 operation.
NOTE
Step (34) below consists of both SUM and DIFF pulses.
(34) Measure second pulse width (DIFF). If second pulse width is not between 0.7
and 0.9 s, perform b (2) below.
(35) Measure pulse spacing between the first and second pulse (fig. 6, inset F). Pulse
spacing will be between 1.8 and 2.2 s.
(36) Repeat (3) above to select MODE C operation.
(37) Press radar test set oscilloscope ERASE pushbutton and then press Autostore
pushbutton to STORE to establish a new autostore waveform.
(38) Set control box RPT switch and PWR switch to OFF.
(39) Connect equipment as shown in figure 5, CONNECTION A.
(40) Repeat (2) and (3) above to select MODE C operation.
NOTE
Step (41) below consists of both SUM and DIFF pulses.
(41) Measure SUM and DIFF pulse widths (fig. 6, inset G). The first pulse must
have a pulse width between 0.7 and 0.9 s; if not, perform b (1) below. The second pulse
width will be between 0.7 and 0.9 s; if not, perform b (2) below.
(42) Measure the pulse spacing between the first and second pulse. Pulse spacing
will between 1.8 and 2.2 s (fig 6, inset G).
(43) Set radar test set oscilloscope TIME/DIV switch to 5 s and press oscilloscope
ERASE pushbutton and then press Autostore pushbutton to STORE to establish a new
autostore waveform.
(44) Place leading edge of first pulse on second vertical graticule line.
(45) Measure MODE C pulse spacing. Pulse spacing will be between 20.8 and 21.2 s.
(46) Set control box RPT switch to OFF.
NOTE
Steps (47) through (55) below utilize a single sweep, triggered
by the control box. Because of the "BURST OPERATING
MODE" of the TI, one pulse train is sent each time LAMP
TEST is pressed. TI resets after 2.5 seconds of display time.
(47) Position radar test set oscilloscope controls for parameters as listed in (a)
through (d) below:
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