User manual

Operator's Manual
28 WA1K2K-OM-E RevB
1. Choose an input coupling mode. Turn on the desired channel by
pressing the appropriate channel button - CH1 or CH2 (or CH3 or 4
on 4 channel models).
2. Now, press the Coupling option button on page 1/2 of the channel
menu, and then select a coupling mode from the menu.
3.
Limiting Bandwidth
You can limit the bandwidth to reduce display noise. When you turn
Bandwidth Limit ON, the Bandwidth Limit value is set to 20 MHz. It also
filters the signal to reduce noise and other unwanted high frequency
components.
Note: The oscilloscope vertical response rolls off slowly above its bandwidth;
or, above 20 MHz when the Bandwidth Limit is set to ON. Therefore, the FFT
spectrum can show valid frequency information higher than the oscilloscope
bandwidth. However, the magnitude information near or above the bandwidth
will not be accurate.
1. Turn the Bandwidth Limit ON by activating the specific channel.
Press the desired channel button - CH1 or CH2 (or CH3 or 4 on 4
channel models).