TB 9-6625-2235-24
(36) Position signal 7.1 divisions above graticule baseline with REF LEVEL FINE
controls. Record signal generator frequency.
Record signal generator frequency.
(38) Increase signal generator frequency until signal peaks and then decreases to the
5th division above graticule baseline. Record signal generator frequency.
(39) Subtract frequency recorded in (37) above from frequency recorded in (38) above,
if difference is not between 9.000 and 11.000 kHz, slightly readjust A8R72 (fig. 5 for SN
prefixed 2215A and below) (fig. 6 for SN prefixed 2332A) and repeat (35) through (39) until
the specified limits are achieved.
NOTE
If A8R72 is adjusted in (39) above, the 3 kHz bandwidth must
be between 2700 and 3300 Hz.
controls for a signal peak on TI crt.
(41) Position signal 7.1 divisions above graticule baseline with REF LEVEL FINE
control. Record signal generator frequency.
(42) Increase signal generator frequency until signal on crt decreases to 5 divisions
above graticule baseline. Record signal generator frequency.
(43) Subtract frequency recorded in (41) above from the frequency recorded in (42)
above, the difference will be between 450 and 550 Hz.
12. Frequency Response
a. Performance Check
(1) Position controls as listed in (a) through (e) below:
(a) RESOLUTION BW switch to 1 MHz.
(b) FREQ SPAN/DIV switch to 100 MHz.
(c) INPUT ATTEN switch to 20 dB (OPTIMUM INPUT switch to -20 dBm).
(d) REFERENCE LEVEL switch to -10 dBm.
(e) Press 1 dB/DIV pushbutton in.