Percent Modulation Measurement; Figure 3-11: Percentage Modulation - Tektronix 2212 User Manual

Non-Storage Examples
Percent Modulation
Measurement
To measure percent modulation with the 2212 oscilloscope, you
can use the following procedure (see Figure 3-11):
Step 1. Switch the 2212 on and obtain a baseline display in
Non-Store mode.
100%
1
f - - - - + - - - + - .
9
~ - + - + - - - - l
C
l},~~---------
0%
ACTIVE
CURSOR
INACTIVE
CURSOR
Figure 3-11: Percentage Modulation.
Step 2. Apply the signal to either vertical channel input connec-
tor and toggle the Vertical MODE switch to display the
channel used.
Step 3. Adjust the Trigger LEVEL control to obtain a stable
display.
3 -
22 Measurement Examples