3. Sweep Time Accuracy Test (220 ms)

NOTE:PULSE WIDTH APPROXIMATE

+15v

 

 

 

 

t-SWEEP RETRACE

 

-r-l

r

l

ov- - - - JI

t-ACTIVE

SNEEP + 1

 

L---

 

 

START+TI”E

STOPhE

INTERVAL

INTERVAL

MEASUREMENT

MEASUREMENT

Figure 2-5. Penlift Output Signal

6.Note the measured sweep time on the universal counter and record this value in Table 2-5. The measured sweep time should be a value between the minimum and maximum values given in Table 2-5.

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

‘Ihble 2-5.

Sweep Time Accuracy, Sweep Times 220 ms

 

 

Marker A Time

 

[SWEEP TIME)

 

 

 

 

 

 

 

 

Min

Measured

 

 

20 ms

18 ms

 

 

 

50 ms

45 ms

 

 

 

100 ms

90 ms

 

 

 

500 ms

450 ms

 

 

 

 

 

 

1s

900 ms

 

 

 

 

 

 

8.Press MARKER (NORMAL].

9.Use @J to place the marker at the second vertical graticule.

10. Press @FiHIFT),[Xi!FF~.

11.Set analyzer [SWEEP TIME) to 20 s. Allow the universal counter enough time to settle at this sweep time.

12.Note the measured sweep time on the universal counter and record this value in Table 2-6. The measured sweep time should be a value between the minimum and maximum values given in Table 2-6.

13.Repeat steps 11 and 12 for 200 s sweep time.

P e r f o r m a n c e T e s t s 2-11