Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 308)

19. CAL Output Adjustment

CENTER

550

MHZ

SPAN

GHZ

RES

MHZ

“BW

MHZ

SWP

25.a

msec

Figure 3-86. CAL OUTPUT Harmonics

10. On the second spectrum analyzer, press MARKER [PEAK SEARCH),

[al to position a marker on the peak of the displayed 100

MHz signal. Then, press the

key (or turn the DATA knob)

to position the second marker on the peak of each displayed

harmonic of the 100 MHz signal in succession, and verify that the

level of each harmonic is greater than 25

down relative to the

peak of the 100 MHz CAL OUTPUT signal. See Figure 3-86.

If the level of each harmonic of the 100 MHz CAL OUTPUT is not

greater than 25

down perform the following steps:

On the second spectrum analyzer, press the

Qf)

and

(7D

keys to

place the second marker on the peak of the highest harmonic

of the 100 MHz signal.

Adjust A6A9AlC29 TRIPLER MATCH only as much as required

to lower the level of the highest harmonic to greater than 25

down relative to the peak of the 100 MHz CAL OUTPUT

signal. Refer to Figure 3-85 for the location of

A6A9AlC29

TRIPLER MATCH.

Disconnect cable 2 (red) from A6A9Jl 300 MHz OUTPUT on

the

A6A9

Phase Lock Assembly. Connect the RF INPUT of the

second spectrum analyzer to

A6A9Jl

300 MHz OUTPUT.

On the second spectrum analyzer, key in

PREFERENCE

LEVEL]

+25

dBm,

[ATTEN]

dB,

MARKER

IOFF),

MARKER [PEAK SEARCH) to

position a marker on the peak of the displayed 300 MHz signal.

Readjust A6A9AlC29 TRIPLER MATCH as necessary for a 300

MHz signal level of at least + 16.5

dBm.

Disconnect the second spectrum analyzer from A6A9Jl 300

MHZ OUTPUT, and reconnect cable 2 (red) to

A6A9Jl

300 MHz

OUTPUT.

Repeat steps 9 through

10E

until no further adjustment is

required.

11. Replace the RF Section bottom cover.

3-166

Adjustments

1 2 ... 303 304 305 306 307 308 309 310 311 312 313 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 308

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