Keysight Technologies InfiniiVision 2000 Service Manual page 34

2
Testing Performance
Use a Blocking Capacitor to Reduce Noise
On the more sensitive ranges, such as 1 mV/div, 2 mV/div, and 5 mV/div, noise
may be a factor. To eliminate the noise, add a BNC Tee, blocking capacitor, and
shorting cap at the oscilloscope channel input to shunt the noise to ground. See
Figure
adapter, and cap. See
details.
Figure 4
34
4. If a BNC capacitor is not available, use an SMA blocking capacitor,
"Blocking capacitor
Using a Blocking Capacitor to Reduce Noise
in the equipment list on
Blocking
Capacitor
To oscilloscope input
2000/3000 X-Series Oscilloscopes Service Guide
page 20 for
BNC shorting
cap