Anritsu MS8608A, Руководство по эксплуатации, Страница: 167 / 338

6-55
Section 6 Performance Tests
(b) Sweep time <100ms
Step Procedure
1
Press the MS8608A/MS8609A Preset key.
2
Operate All Cal.
3
Connect the output of 69269A to the MS8608A/MS8609A according to setup figure.
4
Set the MS8608A/MS8609A as shown below:
Center Frequency .................................. 300 MHz
Span ........................................................... 0 MHz
Ref Level ................................................... 0 dBm
RBW .......................................................... 5 MHz
VBW .............................................................. Off
Detection .................................................. Sample
Sweep Time ................................................ 50 ms
Display Line ................................... On, Absolute
Display Line ............................................. –20 dB
5 Set the 69269A as shown below.
Pulse Modulation ............................................ On
Period ........................................................... 5 ms
Width ......................................................... 2.5 ms
Output Level .............................................. 0 dBm
6 Press the MS8608A/MS8609A Single key.
7
As shown below figure, shift the marker to the point which is most left of the screen, and
where intersect display line and up-slope of wave.
8
Set the marker mode to
∆
marker.
9 Move the current
∆
marker to the right and the 8th point where intersect display line and up-
slope of wave, and read the difference time of the
∆
marker.
10
Repeats steps 6 to 9 at each sweep time and setting the Pulse Period of 69269A, Pulse width
of the below table.
MS8608A/MS8609A Setting
Sweep time
Signal generator
Pulse Period Pulse Width
Calculated result
50 ms
20 ms
10 ms
5 ms
1 ms
100
µ
s
10
µ
s
5 ms
2 ms
1 ms
0.5 ms
0.1 ms
10
µ
s
1
µ
s
2.5 ms
1 ms
0.5 ms
0.25 ms
50
µ
s
5
µ
s
0.5
µ
s
Measured result