TB 9-6625-1914-35
(4) Set SCAN WIDTH PER DIVISION switch to 500 Hz and RANGE switch to 0-
30 kHz.
(5) Adjust FREQUENCY controls to 0 kHz and adjust ZERO ADJ control to center
local oscillator feed-through on CENTER FREQUENCY graticule.
(6) Adjust FREQUENCY control to center dial marker on CENTER FREQUENCY dial at
20 kHz. The 20 kHz marker will appear at CENTER FREQUENCY graticule 1 major division
for model 8552B (2 major division for model 8552A).
b. Adjustments. No adjustments can be made.
47. Frequency Response
a. Performance Check
(1) Connect equipment as shown in figure 15.
(2) Position TI controls as listed in (a) through (g) below:
(a) RANGE switch to 0-30 kHz.
(b) FREQUENCY control to 5 kHz.
(c) FINE TUNE control centered.
(d) BANDWIDTH switch to 300 Hz for model 8552B or 50 Hz for model 8552A.
(e) SCAN WIDTH switch to ZERO.
(f) INPUT LEVEL switch to -40 dBm/dBV.
(g) 20 kHz MARKERS switch out.
