HP 8566B Adjustment Manual page 232

9. 3 dB Bandwidth Adjustments
3-92 Adjustments
31. Adjust A4A9R65 10 kHz for a MARKER A indication of -3.00 dB
32. On the spectrum analyzer, press QfJ several times to position
the second marker at the rightmost graticule line. Then, press
displayed signal for a MARKER A indication of -3.00 dB f0.05
33. On the spectrum analyzer, key in
MARKER
PEAK SEARCH
times to position the second marker at the leftmost graticule line.
34. Readjust A4A9R65 10 kHz for a MARKER [nl indication of -3.00
35. Repeat steps 32 through 34 as necessary until no further
adjustment is required.
36. On the spectrum analyzer, key in
[
CENTER FREQUENCY
FREQUENCY SPAN)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 kHz
37. On the spectrum analyzer, press
DATA knob to position the signal peak near the reference level
(top graticule line).
38. On the spectrum analyzer, key in
and press (JJ several times to position the second marker at the
leftmost graticule line.
39. Adjust A4A9R66 3 kHz for a MARKER A indication of -3.00 dB
40. On the spectrum analyzer, press Q) several times to position
the second marker at the rightmost graticule line. Then, press
displayed signal for a MARKER A indication of -3.00 dB f0.05
41. On the spectrum analyzer, key in
MARKER
times to position the second marker at
42. Readjust A4A9R66 3 kHz for a MARKER A indication of -3.00 dB
f0.05 dB.
43. Repeat steps 40 through 42 as necessary until no further
adjustment is required.
The 1 kHz 3-dB bandwidth is set with factory-select components
increase the 1 kHz 3-dB bandwidth, increase the value of one or
more pairs of these factory-select components. The 300 Hz, 100
Hz, 30 Hz, and 10 Hz 3-dB bandwidths are set with factory-select
components A4A7R66, A4A7R68, A4A7R70, A4A7R72, A4A7R74,
],
MARKER (iYJ and press @ several
the following settings:
)
..................................... 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEVEL
SEARCH
],
MARKER Ln], and press a several
SEARCH
the leftmost graticule line.
]
10 kHz,
SPAN
MHZ
3 kHz
)
and use the
],
MARKER [n],
)
3 kHz,
SPAN