Real time vs equivalent time sampling mode, Real time vs equivalent time sampling mode 103 – GW Instek GBS-1000 Series User Manual User Manual
Page 103

CONFIGURATION
103
Real time vs Equivalent time sampling mode
Background
GBS-1000 automatically switches between two
sampling modes, Real-time and Equivalent-time,
according to the number of active channels and the
sampling rate.
Parameter
Real-time
sampling
One-time sampled data is used to
reconstruct a single waveform.
Short-time events might get lost if
the sampling rate gets too high.
This mode is used when the
sampling rate is relatively low.
Equivalent-
time sampling
Multiple numbers of sampled data
are accumulated to reconstruct a
single waveform. Restores greater
waveform details but takes longer
to update the waveform. This mode
is used when the sampling rate
becomes higher.
Real-time /
Equivalent-time
sampling
threshold
Input channel:
Activated
Not activated
Does not matter
1
2
3
4
1G
25G
2.5
250M
500M
Real-time
Sampling
Equivalent-
Time
Sampling
Input Channel
Sa/s