GW Instek GRS-6000A Series - Manual (Page 27)

GRS-6052A/6032A OSCILLOSCOPE
USER MANUAL
⎯ ⎯
48
Observing the Synchronization of two Waveforms
When two signals of the CH1 and CH2 have the same frequencies with an
integral number, or a specific time difference, the SOURCE selects either CH1
or CH2 as a reference signal. Select CH1 signal from CH1 position and select
CH2 signal from CH2 position as a reference.
Set the SOURCE to VERT-MODE for observing the signal of different
frequencies. Switch the sync signal alternately to each channel, the waveform of
each channel will be triggered stably.
When set the SOURCE to VERT-MODE and set the ALT/CHOP to ALT, the
input signals applied to CH1 and CH2 will become trigger source alternately
during sweep. Consequently, even the waveforms of different frequency of each
channel can be triggered stably.
Apply a sine wave to CH1 and a square wave to CH2, “A”s shown in Figure 5-
11 are at the level possible for synchronization.
Figure 5-11 Trig. Source on VERT
Apply AC coupling to CH2 in order to expand the synchronization range.
If the input signal of CH1 or CH2 becomes small, adjust VOLT/DIV control
knob to obtain sufficient amplitude.
The VERT-MODE triggering required 2.0 DIV which is larger than the
amplitude of CH1 or CH2.
GRS-6052A/6032A OSCILLOSCOPE
USER MANUAL
⎯ ⎯
49
The VERT-MODE triggering is not possible when the signal is applied only to
one channel as shown in Figure 5-12 below:
Figure 5-12 Trig. Source on VERT. one channel
ALTERNATE TRIGGER
The Jittering wave as shown in Figure 5-13 may appear on the screen when a
gently-slopping signal is displayed 10 cycles or less approximately by setting
VERT-MODE to SOURCE, and setting ALT/CHOP pushbutton to ALT. For
detailed and clear observation of each signal, set VERTICAL mode to CH1 or
CH2.
Figure 5-13 Alternate Trig.