UnderstandingOscilloscope Functions
22 TDS1000/2000-Series Digital Oscilloscope User Manual
The next table lists the time basesthat you should use to avoid
aliasing at various frequencies and the respective sampl e rate. At the
fastest SEC/DIVsetting, aliasing is not likely to occur due to the
bandwidth limitationsof the oscilloscope input amplifiers.
Settings to avoid aliasing in Sample mode
Time base
(SEC/DIV)
Samples per
second
Maximum
frequency
component
25 to 250.0 ns 1GS/sor
2GS/s*
200.0 MHz**
500.0 ns 500.0MS/s 200.0 MHz**
1.0 s250.0 MS/s 125.0 MHz**
2.5 s100.0 MS/s 50.0 MHz**
5.0 s50.0 MS/s 25.0 MHz**
10.0 s25.0 MS/s 12.5 MHz**
25.0 s10.0 MS/s 5.0 MHz
50.0 s5.0 MS/s 2.5 MHz
100.0 s2.5 MS/s 1.25 MHz
250.0 s1.0 MS/s 500.0 kHz
500.0 s500.0 kS/s 250.0kHz
* Depending on the oscilloscope model.
** Bandwidth reduced to 6 MHz with a 1X probe.