TB 9-6625-2009-24
c. S e t P O W E R s w i t c h t o O N ( A C ) a n d a l l o w s u f f i c i e n t t i m e f o r w a r m - u p a n d
stabilization.
d. Adjust INTENSITY and FOCUS controls as required for a bright, clear trace.
e. Position controls as listed in (1) through (22) below:
(1) ADAPTIVE SWEEP control to OFF.
(2) DISPLAY STORE pushbutton pressed and released.
(3) DISPLAY BLANK STORE pushbutton pressed and released.
(4) AMPLITUDE MODE LOG 10 dB/DIV pushbutton pressed.
(5) AMPLITUDE REF LEVEL switch to NORMAL.
(dBm/LIN--900 ) switch to dBv/LIN (dBm/LIN and
(6) DBv/LIN--dBm 600
set UNBAL/BRDG/TERM switch to UNBAL on some models).
(7) INPUT SENSITIVITY switch to CAL.
(8) INPUT SENSITIVITY VERNIER control to CAL (fully cw).
(10) START/CTR switch to START.
(11) RESOLUTION BANDWIDTH control to 30 Hz.
(12) RESOLUTION BANDWIDTH DISPLAY SMOOTHING switch to MIN.
(13) SWEEP MODE switch to RESET.
(14) DISPLAY CLEAR WRITE pushbutton pressed.
(15) ZERO CAL control for a peak zero response (zero response will appear at far left
graticule line).
(16) SWEEP MODE switch to LOG ZERO.
(17) Repeat (14) and (15) above.
(18) FREQUENCY control to 10.0 kHz.
(19) RESOLUTION BANDWIDTH control to 3 Hz.
(20) FREQ SPAN/DIV control to 0 (zero) Hz.
(21) SWEEP MODE switch to MAN.
(22) ADAPTIVE SWEEP control adjusted until sweep marker (gap) appears on
horizontal trace.
f. Press and hold DISPLAY CLEAR WRITE pushbutton while adjusting SWEEP
MODE MANUAL VERNIER control until sweep marker is centered. Release DISPLAY
CLEAR WRITE pushbutton.
g. Turn ADAPTIVE SWEEP control to OFF.
h. Adjust FREQUENCY control for a 10 kHz peak response in center of TI display.
i. Adjust CAL 10 kHz control until 10 kHz response is full scale.
j.
Press AMPLITUDE MODE LOG 1 dB/DIV pushbutton.
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