Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 72)

100

101

11. Sweep Time Accuracy Test

Procedure

1. Connect equipment as shown in Figure 2-21.

2. Press

[mj

SWEEP

C-1

on the analyzer.

3. Key in the following settings:

[CENTER FREQUENCY_)

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

500 MHz

(FREQUENCY SPAN)

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

. . . . .

OHz

4. Set up the universal counter as follows:

a. Set all front panel keys in “out” position.

b. Set POWER switch to ON.

c. Set GATE TIME vernier control to 9 o’clock.

d. Set SEP/COM A switch to COM A position.

e. Depress T.I. A

B switch (making sure the blue shift key is

out).

f. Set Channel A trigger level to trigger on negative slope.

g. Set Channel B trigger level to trigger on positive slope.

h. Set both Channel A and Channel B

ac/dc

switches to dc.

i. Connect the digital voltmeter to Channel A TRIGGER LEVEL

OUT. (Be sure to ground the DVM properly.)

j. Adjust Channel A trigger level to set a DVM voltage reading of

0.3 v.

k. Repeat steps i and j for Channel B.

5. Set analyzer @WEEP TIME] to 20 ms. Reset the universal counter

and press SWEEP

C-1

on the spectrum analyzer.

6. Note the measured sweep time on the universal counter and

record this value in

‘Ihble

2-16. The measured sweep time should

be a value between the minimum and maximum values given in

‘Ihble

2-16.

7. Repeat steps 5 and 6 for each sweep time setting in Iable 2-16.

Performance Tests 2-47

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Agilent Technologies HP 8566B Spécifications Page 72

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