HP 8566B Adjustment Manual page 361

4-2 Option 462
6 dB Bandwidth Adjustments
+ 50%, -0%, 10 Hz bandwidth
30 kHz and 100 kHz bandwidth accuracy figures only applicable 590%
Relative Humidity, 140" C .
The 6 dB bandwidth for each resolution bandwidth setting is
measured with the MARKER function to determine bandwidth
accuracy. The CAL OUTPUT is used for a stable signal source.
None required
1. Press (2).
2. Connect CAL OUTPUT to RF INPUT.
3. Key in spectrum analyzer settings as follows:
[ )
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
CENTER FREQUENCY
FREQUENCY SPAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
[
REFERENCE
4.
Press SCALE LIN pushbutton. Press CsHlFT), [my (resolution
bandwidth) for units in dBm.
Adjust [
5.
REFERENCE LEVEL
below) reference level (top) graticule line. Press SWEEP @iYZZJ
Press MARKER C-1 and place marker at peak of signal trace
6.
with DATA knob. Press MARKER la] and position movable marker
6 dB down from the stationary marker on the positive-going edge
of the signal trace (the MARKER A amplitude readout should be
-6.00 dB f0.05 dB). It may be necessary to press SWEEP (m)
(
and adjust
CENTER FREQUENCY
7. Press MARKER La] and position movable marker 6 dB down
from the signal peak on the negative-going edge of the trace (the
MARKER Aamplitude readout should be .OO dB f0.05 dB). The 6
Figure 4-l.) Record this value in Table 4-l.
. . . . . . . . . . . . . . -10 dBm
) to position peak of signal trace at (or just
_)
to center trace on screen.
MHZ
MHz