Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 236)

100

101

10. Step Gain and 18.4 MHz Local Oscillator Adjustments

14. Note MARKER amplitude in

and adjust

A4A5R33

CAL to

70.7

(top CRT graticule line). See Figure 3-47 for location of

adjustment.

A4A7

3 MHz BANDWIDTH

A4A5

A4A8Jl

F I LTER

STEP GAIN

R33

CAL

A4A.5

Figure 3-47. Location of IF Gain Adjustment

15.

Gain

Step

16.

Adjustment

17.

18.

19.

20.

21.

A4A5R33

CAL adjustment does not have sufficient range to

adjust trace to the top CRT graticule line, increase or decrease the

value of

A4A7R60

as necessary to achieve the proper adjustment

range of

A4A5

CAL adjustment. See Figure 3-39 for the location

A4A7R60.

Refer to

Table

3-3 for range of values for

A4A7R60.

Connect CAL OUTPUT to RF INPUT through 10

step

attenuator and 1

step attenuator.

Key in LOG CENTER

dB/DIvI)

dB,

c-1

3 Hz, and

(REFERENCE LEVEL] -30

dBm.

Set step attenuators to 25

dB.

Key in MARKER A. Signal trace should be at the center CRT

graticule line, and MKR A level, as indicated by CRT annotation,

should be .OO

dB.

Key in (REFERENCE LEVEL] -40

dBm.

Set step attenuators to 35

dB.

Adjust

A4A5R32

SGlO

for MKR A level of .OO

(CRT MKR A

annotation is now in upper right corner of CRT display). See

Figure 3-48 for location of adjustment.

3-96 Adjustments

1 2 ... 231 232 233 234 235 236 237 238 239 240 241 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 236

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