Tektronix TDS 500C, TDS 600B, TDS 700C Stop After

Acquiring and Displaying Waveforms
TDS 500C, TDS 600B, & TDS 700C User Manual 3–35
Check Table 3–4 below to determine the time base setting(s) at which the switch
from real-time sampling (RT) to equivalent time sampling or interpolation (ETI)
occurs for your model.
Table 3–4: TDS 500C and TDS 700C Sampling mode selection (when fit to screen is off)
Model TDS 540C TDS 520C & 724C TDS 754C TDS 784C
Channels on11 2 3 or 4 1 2 1 or 2 3 or 4 1 2 3 or 4
Time base2
u50 ns RT3RT RT RT RT RT RT RT RT RT
50 ns RT RT ETI4RT RT RT RT RT RT RT
25 ns RT ETI ETI RT ETI RT ETI RT RT ETI
12.5 ns 5 5 5 5 5 5 5 RT ETI ETI
t25 ns ETI ETI ETI ETI ETI ETI ETI ETI ETI ETI
1Note that the TDS 520C and TDS 724C can have no more that two channels on at a time.
2“u” means “slower than”; “t” means “faster than.”
3“RT” abbreviates “Real-Time Sampling” throughout this table.
4“ETI” abbreviates “Equivalent-Time Sampling or Interpolation” throughout this table.
5Time base setting not available for this model.
To choose the event that stops the acquiring waveforms, do the following step:
Press SHIFT ACQUIRE MENU ➞ Stop After (main) ➞ RUN/STOP button
only, Single Acquisition Sequence, or Limit Test Condition Met (side). (See
Figure 3–17.) (TDS 500C and TDS 700C models only: single acquisition and
limit testing are ignored in InstaVu mode; see Incompatible Modes on
page 3–58.)
Stop After