HP 54522A - Page 68

Figure 4-5
6
7
Horizontal
Repetitive/Real Time Softkey
Press the Stop/Single key to stop the acquisition. Then, press the
Clear display key.
Alternately press the Stop/Single and Clear display keys to alternately
display and erase the single-shot data.
At 2 ns/div, 40 points are captured (Table 4-1 compares the time/div setting
to the number of points captured.). Because interpolation is turned off in the
repetitive mode, only 40 points are displayed on the screen with each new
acquisition. Because the sample rate is 2 GSa/s, the data points are 500 ps
apart. The 40 data points are referred to as raw data because they are the
actual data points that are captured.
At 20 ns/div and faster, it may take several acquisitions to fill the screen (all
500 pixel columns). At 50 ns/div and slower, each acquisition contains
enough data to fill the screen and the screen is completely refreshed with
each acquisition in the minimum persistence mode.
4p stopped HORIZONTAL
~ reference
| left Ra «00° |
|
reaitime
-38.400 ns -26.400 ns -18.400 ns
2.00 ns/div repetitive