Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 330)

2 1. Frequency Response Adjustments

acceptable range of values for

A6AlOR87,

and Table 3-4 for HP part

numbers. See Figure 3-90 for the location of

A6AlOR87.

Band

5.8

GHz

90. On the spectrum analyzer, key in

@=TEZT@,

@iYiE]

[PRESEL

PEAK_)

12.5

GHz

[SHIFT]

TRACE A

(HOLD]

Set the spectrum analyzer

controls as follows:

START FREQ . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.5.8

GHz

STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5

GHz

RES BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MHz

REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . -7

dBm

LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 dB/DIV

SWEEP TIME

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ms

91. On the synthesized sweeper, key in

Icw]

6.0

GHz.

Note

The POWER LEVEL of the synthesized sweeper should still be leveled

to a calibrated -10.00

dBm

at 100 MHz at the spectrum analyzer RF

INPUT from step 55.

92.

Adjust 22-turn (IF Offset) potentiometer

A6A12R84

C and

17-turn (YTX Bias) potentiometer

A6AlOR15

VC for maximum

signal amplitude at 6.0

GHz

on the spectrum analyzer display.

See Figure 3-90 for the locations of

A6A12R84

C and

A6AlOR15

vc.

93.

On the spectrum analyzer, key in MARKER

(j-1,

MARKER

[PEAK SEARCH) to position a marker at the peak of the displayed

6.0

GHz

signal. Adjust 17-turn (Band C Step Gain) potentiometer

A6AlOR25

GC as necessary to adjust the amplitude of the

displayed 6.0

GHz

marker to -10.00

dBm

fO.10

dB.

Adjust

A6AlOR25

GC counterclockwise to increase the signal level, and

clockwise to decrease the signal level. If

A6AlOR25

GC does not

have sufficient range, adjust the amplitude of the displayed 6.0

GHz

marker as close as possible to -10.00

dBm.

See Figure 3-90

for the location of

A6AlOR25

GC.

94.

On the spectrum analyzer, key in LOG SCALE (ENTER

dB/DIv]

dB,

MARKER

fjNORMAL).

95.

Readjust 22-turn (IF Offset) potentiometer

A6A12R84

C as

necessary to maximize the amplitude of the 6.0

GHz

signal on

the spectrum analyzer display.

96.

Set the synthesized sweeper controls as follows:

START FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.5.8

GHz

STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5

GHz

RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on

LEVELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XTAL

SWEEP TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 ms

SWEEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONT

97.

On the spectrum analyzer, key in TRACE A

CCLEAR-WRITE),

(SWEEP TIME)

2s,

MARKER

(OFF,

IHOLD).

As the spectrum

analyzer completes each sweep, a series of approximately 23 new

resnonses

should be disnlaved.

as shown in Figure 3-97. The

3-190

Adjustments

1 2 ... 325 326 327 328 329 330 331 332 333 334 335 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 330

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