Understanding Oscilloscope Functions
22
TDS1000/2000-Series Digital Oscilloscope User Manual
The next table lists the time bases that you should use to avoid
aliasing at various frequencies and the respective sample rate. At the
fastest SEC/DIV setting, aliasing is not likely to occur due to the
bandwidth limitations of 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 500.0 MS/s 200.0 MHz**
1.0 s
250.0 MS/s 125.0 MHz**
2.5 s
100.0 MS/s 50.0 MHz**
5.0 s
50.0 MS/s 25.0 MHz**
10.0 s
25.0 MS/s 12.5 MHz**
25.0 s
10.0 MS/s 5.0 MHz
50.0 s
5.0 MS/s 2.5 MHz
100.0 s
2.5 MS/s 1.25 MHz
250.0 s
1.0 MS/s 500.0 kHz
500.0 s
500.0 kS/s 250.0 kHz
* Depending on the oscilloscope model.
** Bandwidth reduced to 6 MHz with a 1X probe.
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