Teledyne T3SP Series Operator's Manual page 26

9. The Repetition rate of the device is selectable via the corresponding
pull-down menu. By default the instrument is shipped with 10 MHz,
5 MHz, 2 MHz and 1 MHz repetition rates.
Recommendation: For most measurements (e.g. for line impedance mea-
surements on PCBs) an interval of 4096 points in combination with a repeti-
tion rate of 10 MHz is suitable.
10. A number of average measurements can be chosen in the Oscillo-
scope Window. The signal-to-noise ratio (SNR) increases with the
number of averages. At least 3 averages are recommended.
Please note: if a high number of averages is chosen (e.g. greater 50), the
number of stored repetition measurements is compressed to the number
given in the Seunis.config file (see entry "Compressed number of measure-
ments", the default value is 50).
11. The real-time TDR trace is shown (yellow dots) in the Oscilloscope
Window. Alternatively, an impedance trace can be displayed (View
Show Impedance).
12. By default, all average measurements are carried out by one single
trigger event. If this currently should not be the case, open the De-
vice Tab in the Options Dialog via the menu item Extras
(Device) and make sure the Single-Shot Measurement checkbox is
T3SP-Series Operator's Manual
Options
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