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□ Step 3: Adjust the horizontal position control as necessary to center the
display.
Perform the following procedure to use the XI0 magnifier in the STORE
mode:
H Step 1: Center the active cursor on the portion of the sweep you want
to magnify.
□ Step 2: Pull out the X10 CAL PULL knob.
i~l Step3: Adjust the CURSORS control as necessary to center the dis
play.
Displaying Two
Channels
By using both channels on the instrument you can compare one signal
directly with another. With one signal in each channel it is also very easy to
algebraically add them together or subtract them from each other.
Comparing Two Signals
□ Step 1: Connect one signal to Channel 1 and the other signal to Chan
nel 2. Move the CHI BOTH CH2 switch to BOTH.
i~1 Step 2: Move the ADD ALT CHOP switch to ALT or CHOP (In general,
it is better to use CHOP when the SEC/DtV control is set in the millisec
ond (ms) range, and ALT when the SEC/DIV is in the microsecond (ps)
range.)
□ Step 3: Position both signals on screen and adjust the vertical and
horizontal scales.
Adding Two Signals
D Step 1: Connect one signal to Channel 1 and the other signal to Chan
nel 2. Move the CH1-BOTH-CH2 switch to ADD.
□ Step 2: Adjust the vertical position of the resultant display with both the
Channel t and Channel 2 POSITION controls.
Subtracting Signals or Signal Components
(Common Mode Rejection)
You can subtract an undesirable DC or AC signal component by inverting it
in Channel 2 and adding it to Channel 1 (Figure 3-19).
I"! Step 1: Connect one signal to Channel 1 and the other signal or signal
component you want to subtract to Channel 2. Move the CH1-BOTH-
CH2 switch to ADD,
□ Step 2: Push the Channel 2 INVERT switch in.
3-20
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