Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 364)

3. Impulse and Resolution Bandwidth Accuracy Test

Procedure

1. Set the frequency synthesizer for a 15 MHz, + 13

dBm

output.

Connect the output of the frequency synthesizer to the EXT

INPUT of the pulse/function generator.

2. Set the pulse/function generator controls as follows:

MODE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRIG

EXT INPUT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . positive-going

EXT INPUT LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . midrange

OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pulse

LOL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ov

HIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.0.4V

WIDTH (WID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ns

DISABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . off

Note

The spectrum analyzer [REFERENCE LEVEL] setting should remain at

dBm

throughout steps 4 through 38 to prevent possible IF gain

compression of the pulse signal.

10.

11.

12.

On the spectrum analyzer, press

t2-22)

and set the controls as

follows:

.......................................

15 MHz

.......................................

12 MHz

.......................................

..20dB

......................................

MHz (i)

..3

MHz

........................................

.......................................

.OdBm

On the spectrum analyzer, press

[ATTEN)

[x)

SWEEP

t-1

MARKER (PEAK SEARCH). Note the MARKER amplitude for

the 3 MHz filter in the HIGH FREQUENCY REPITITION RATE

column in

‘Ihble

4-2.

Set the frequency synthesizer

CFREQUENCY]

to 300

kHz.

On the spectrum analyzer, press [FREQUENCY SPAN] 0 Hz,

[SWEEP TIME] 0.5 seconds, SWEEP

I-1.

Press MARKER

[PEAK

Note the MARKER amplitude for

the 3 MHz filter in the LOW FREQUENCY REPITITION RATE

column in

Table

4-2.

Calculate the Impulse Bandwidth of the 3 MHz Alter using the

formula shown below and record the results for the 3 MHz filter

‘Ihble

4-2.

BW(i) = High frequency rep rate (15 MHz) x (Low frequency

reading (step

7)/Hi

frequency reading(step 4))

Set the frequency synthesizer (FREQUENCY] to 10 MHz.

On the spectrum analyzer, key in [CENTER FREQUENCY] 10 MHz,

I-1

1 MHz (i),

~FREQUENCY

SPAN

)

4 MHz, SWEEP TIME

(AUTO],

SWEEP

(SINGLE),

MARKER

[

PEAK SEARCH

Record MARKER

amplitude in Table 4-2

Set the frequency synthesizer

[FREQUENCY)

to 100

kHz.

On the spectrum analyzer, key in (FREQUENCY

SPAN_)

0 Hz,

[SWEEP TIME) 0.5 seconds, SWEEP

(SINGLE_).

Option 462 4-5

1 2 ... 359 360 361 362 363 364 365 366 367 368 369 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 364

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