OD1402 - Lesson 1/Learning Event 1
To do this, you must use the controls of the Main Triggering
Amplifier on the dual time base (refer back to figure 4 on page 8).
The TIME/DIV switch controls the horizontal display time of the
Two complete cycles should be displayed on the CRT (figure 14,
below) Before you can calculate the frequency, you must first
compute the time duration of one complete cycle. Count the number
of divisions of horizontal deflection for one complete cycle and
use the following formula:
Horizontal Deflection x TIME/DIV OR DLY TIME = Time
(in cm per cycle) Switch Setting Period
In Figure 14, the Time Period would be calculated like this:
5 cm per cycle x .2 ms = 1 ms
FIGURE 14. CALCULATING PERIOD AND FREQUENCY.
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