Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 320)

2 1. Frequency Response Adjustments

22. On the synthesized sweeper, press

CPOWER

LEVEL] and adjust

the ENTRY knob as necessary for a power meter indication of

-15.00

dBm

*2.00

at 100 MHz.

23. On the power meter, press (RANGE HOLD) (turning it on).

24. On the synthesized sweeper, press (POWER LEVEL) and adjust the

ENTRY knob for a power meter indication of -10.00

dBm

f0.03

at 100 MHz.

25. On the synthesized sweeper, press

[mj

LEVELING and adjust

the ENTRY knob (REF in

dBV

with ATN: 0

dB)

for a power

meter indication of -10.00

dBm

ho.03

at 100 MHz.

Note

Do not vary the synthesized sweeper POWER LEVEL setting

(internal leveling) or METER REF and METER ATN settings (external

power meter leveling) for the remaining steps in this section of the

adjustment procedure. The frequency response adjustments are

referenced to the -10.00

dBm

power level at 100 MHz.

26. Press

[2--22)

on the spectrum analyzer. Set the RF Section

front-panel AMPTD CAL control to the approximate center of its

adjustment range.

Note

Do not vary the spectrum analyzer front-panel AMPTD CAL control

setting for the remaining steps in this adjustment procedure.

27. Set (Band A Lower Segment) A6AllR48 Al and (Band A Upper

Segment) A6AllR66 A2 each to the approximate center of its

adjustment range.

Then, adjust

A6AllR84

GAIN fully clockwise for maximum

RF gain. See Figure 3-90 for the locations of A6AllR48 Al,

A6AllR66 A2, and A6AllR84 GAIN.

28. On the spectrum analyzer, key in

@E5iCiJ

8, [REFERENCE LEVEL)

-4

dBm

and then press the

and

@‘J

keys as necessary to

position the peak of the displayed 100 MHz signal within one

division of the top graticule line. Key in MARKER (PEAK SEARCH),

MARKER

[nl

on the spectrum analyzer to position two markers

on the peak of the displayed 100 MHz signal.

29. Readjust A6AllR84 GAIN counterclockwise to decrease the RF

gain 5.00

*0.02

dB,

as indicated by the MARKER A indication

on the spectrum analyzer display.

30. On

the

spectrum analyzer, key in (RECALL) 8.

31. Adjust

17-turn

potentiometer (Band A Step Gain)

A6AlOR21

GA to adjust the amplitude of the displayed 100 MHz signal to

10.00

dBm

*O.

dB.

Adjust

A6AlOR21

GA counterclockwise

to increase the signal level, and clockwise to decrease the signal

level. If

A6AlOR21

GA does not have sufficient range, adjust the

amplitude of the 100 MHz displayed signal as close as possible to

-10.00

dBm.

3-190

Adjustments

1 2 ... 315 316 317 318 319 320 321 322 323 324 325 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 320

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