Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 345)

100

101

2 1. Frequency Response Adjustments

LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dB/DIV

187. Press MARKER

(-1

and adjust (IF Step Gain) potentiometer

A6AlOR81

GF for a marker indication of 0.00

dBm

fO.O1

dB.

Note

A6AlO

Miscellaneous Bias/Relay Driver Assembly is HP

P/N

85660-60322 (HP 85660AB RF Sections with serial number prefix

2747A or above), and

A6AlOR81

GF does not have sufficient range,

change the

value

of factory-select component

A6AlOR91.

Increase

the

value

A6AlOR91

to decrease the signal level, and decrease the

value of

A6AlOR91

to increase the signal level. See

Table

3-3 for the

acceptable range of

values

for

A6AlOR91,

and

‘Ihble

3-4 for HP part

numbers. See Figure 3-90 for the location of

A6AlOR91.

188.

189.

190.

191.

192.

Disconnect the low-loss microwave test cable from the spectrum

analyzer front panel 321.4 MHz IF INPUT connector. Reconnect

the jumper cable between the spectrum analyzer front panel

32 1.4 MHz IF INPUT and IF OUTPUT connectors.

On the spectrum analyzer, key in

6 Hz,

(REFERENCE LEVEL)

-12

dBm.

In the RF Section, disconnect cable 84 (gray/yellow) from

A6A12Jl

and cable 82 (gray/red) from

A6A12J2.

Replace

the cover to the A6 RF Module, and then reconnect cable 84

(gray/yellow) to

A6A12Jl

and cable 82 (gray/red) to

A6A12J2.

Remove the jumper between

A12TP2

and

A12TP3

(LOCK

INDICATOR DISABLE) on the Al2 Front Panel Interface

Assembly in the RF Section.

Replace the RF Section bottom cover.

Adjustments

3-205

1 2 ... 340 341 342 343 344 345 346 347 348 349 350 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 345

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