Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 68)

10. Frequency Response Test

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

CPRESEL

PEAK) and wait for the

PEAKING! message to clear from the CRT.

69. Repeat steps 66 through 68 until the level of the lowest point on

the TRACE B waveform does not change.

70. On the spectrum analyzer, key in TRACE B (VIEW], TRACE A

(XXX],

MARKER

(ml

and use the DATA knob to position 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

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

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.

External

Mixer

Bands

76. Connect the low-loss microwave test cable to the synthesized

(18.6

GHz

325

GHz)

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

~NSTR

PRESET) on the synthesized sweeper. Set the controls

of the synthesized sweeper as follows:

....................................................

.321.4 MHz

POWER LEVEL

.......................................

-20.0

dBm

..............................................................

Performance Tests 2-43

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 68

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