Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 67)

10. Frequency Response Test

53. On the synthesized sweeper, key in

Icw)

3.0

GHz,

CSTART

FREQ) 2.0

GHz,

@7?FEZT)

3.9

GHz,

[SWEEP TIME) 150 s, SWEEP

[ml,

SWEEP

(-1.

54. On the spectrum analyzer, key in TRACE B [CLEAR-WRITE), TRACE

(j-1,

(SHIFT)

(GHz)

(KS/).

55. On the synthesized sweeper, key in [START

FREQ),

SWEEP

[SINGLE]

and wait for a sweep to complete (150 seconds) and the SWEEP

LED to turn off. As the synthesized sweeper tunes from 2.0

GHz

to 3.9

GHz,

the spectrum analyzer frequency response is displayed

as TRACE B (TRACE A displays the current input signal).

56. On the synthesized sweeper, press Icw) and use the ENTRY knob

to position the peak of the displayed TRACE A signal at the

lowest point on the TRACE B waveform.

57. On the spectrum analyzer, key in (PRESEL PEAK) and wait for the

PEAKING! message to clear from the CRT.

58. Repeat steps 55 through 57 until the level of the lowest point on

the TRACE B waveform does not change.

59. On the spectrum analyzer, key in TRACE B (VIEW), TRACE A

ljj],

MARKER

(J-1

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

Table

2-15. The maximum absolute amplitude should be less

than -7.70

dBm.

60. 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.

61. On the spectrum analyzer, press MARKER [al, 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.

62. Set the spectrum analyzer controls as follows:

START FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.9

GHz

STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.5.8

GHz

63. Consult the power sensor Cal Factor versus Frequency graph or

table and set the power meter CAL FACTOR

switch to the 5

GHz

calibration setting.

64. On the synthesized sweeper, key in

Icw]

5.0

GHz,

CSTART

FREQ) 3.9

GHz,

CsTop-

5.8

GHz.

65. On the spectrum analyzer, key in TRACE A [CLEAR-WRITE), TRACE

(

CLEAR

WRITE

TRACE B

l-1,

[SHIFT]

IGHz)

(KS/).

66. On the synthesized sweeper, key in [START FREQ), SWEEP

(-1

and wait for a sweep to complete (150 seconds) and the SWEEP

LED to turn off. As the synthesized sweeper tunes from 3.9

GHz

to 5.8

GHz,

the input signal is displayed as a TRACE A response,

and the spectrum analyzer frequency response is displayed as

TRACE B.

2-42 Performance Tests

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 67

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