HP 8566B Adjustment Manual page 68

67. On the synthesized sweeper, press [cwl and use the ENTRY knob
to position the peak of the displayed TRACE A signal at the
lowest point on the TRACE B waveform.
68. On the spectrum analyzer, key in
PEAKING! message to clear from the CRT.
69. Repeat steps 66 through 68 until the level of the lowest point
the TRACE B waveform does not change.
70. On the spectrum analyzer, key in TRACE B (VIEW], TRACE A
marker on the highest point on the TRACE B waveform. Record
the amplitude and frequency for this maximum point in Column
4 of 'Iable 2-15. The maximum absolute amplitude should be less
than -7.70 dBm.
71. On the spectrum analyzer, use the DATA knob to position a
marker on the lowest point on the TRACE B waveform. Record
the amplitude and frequency for this minimum point in Column 4
of Table 2-15. The minimum absolute amplitude should be greater
than -12.30 dBm.
72. On the spectrum analyzer, press MARKER a], and use the DATA
knob to position a second marker on the highest point on the
TRACE B waveform. Flatness (total peak-to-peak amplitude
deviation) of the displayed trace should be less than 3.40 dB.
73. Repeat steps 62 through 72 for the six remaining frequency ranges
listed in 'Ihble 2-15, setting both the power meter CAL FACTOR 96
switch and the synthesized sweeper Icw] frequency for the power
sensor Cal Frequency listed in Column 3.
74. For each frequency band tested, calculate the overall flatness by
subtracting the maximum amplitude value from the minimum
amplitude value recorded in Column 4 of 'Ihble 2-15. Record
the result for each frequency band in Column 5 of 'Iable 2-15.
Flatness (total peak-to-peak amplitude deviation) for each
frequency band should be less than the specified values listed in
Column 5 of Table 2-15.
75. Calculate the cumulative flatness for both the 100 Hz to 20 GHz
and the 100 Hz to 22 GHz frequency ranges by subtracting the
appropriate maximum amplitude value from the appropriate
minimum amplitude value recorded in either 'Iable 2-14 or Column
4 of Table 2-15. Record the result for both frequency ranges at
the bottom of 'Ihble 2-15.
76. Connect the low-loss microwave test cable to the synthesized
sweeper RF OUTPUT using an APC 3.5 (f) to APC 3.5 (f) adapter.
Connect the power meter/power sensor to the opposite end of the
test cable using an APC 3.5 (f) to APC 3.5 (f) adapter.
77. )
Press on the synthesized sweeper. Set the controls
PRESET
of the synthesized sweeper as follows:
CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .321.4 MHz
POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20.0 dBm
RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
10. Frequency Response Test
)
and wait for the
PEAK
Performance Tests 2-43
on