User manual

WAVESURFER MXS-B OSCILLOSCOPE
WSMXs-B-GSM-E Rev A 46
 DC - All the signal’s frequency components are coupled to the trigger circuit
for high frequency bursts or where the use of AC coupling would shift the
effective trigger level.
 AC - The signal is capacitively coupled. DC levels are rejected, and frequencies
below 50 Hz are attenuated.
 LFREJ - The signal is coupled through a capacitive high-pass filter network, DC
is rejected and signal frequencies below 50 kHz are attenuated. For stable
triggering on medium to high frequency signals.
 HFREJ - Signals are DC coupled to the trigger circuit, and a low-pass filter
network attenuates frequencies above 50 kHz (which is used for triggering on
low frequencies).
6. Change the trigger Level by adjusting the front panel trigger level knob.
7. Select a trigger Slope from the Slope section:
 Positive and Negative slope refers to the voltage
change direction for triggering.
 Window defines a region whose boundaries extend
above and below the selected trigger level. A trigger
event occurs when the signal leaves this window
region in either direction and passes into the upper or
lower region (as follows). The next trigger occurs when
the signal passes into the window region.
 Either – Use this selection to trigger when positive or
negative voltage change directions occur.