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1) Press the
multiple times to tab right and the
AUTO menu is highlighted and displaying the submenu items.
2) Press the
menu items until GATE is highlighted.
3) Press the
the correct gate is being displayed, proceed to step 8.
4) Alternatively, press the
5) Press the
value.
6) Press the
locations.
7) Repeat steps 5 & 6 until the gain number is correctly displayed.
8) Press the
to cancel entering the Gate value.
9) Finally, press the
taking readings.
12.6 Threshold
The Threshold is the level (sensitivity) of the signal amplitude required to trigger a
detection/measurement. The higher the threshold level the lower the sensitivity.
Threshold can be used in conjunction with the gain setting. Example: suppose the
user is not detecting on the first cycle of the waveform because the amplitude of the
first cycle does not have enough output to reach the current threshold level. Either
the Threshold can be decreased (more sensitivity), or the Gain increased to detect
on the first cycle. Should the auto set function not determine the optimal level, given
and issue with the reflector, the threshold can be manually adjusted to override the
auto setting.
key once to activate the menu items tab. Press the
and
arrow keys multiple times to scroll through the sub
and
arrow keys multiple times to scroll the value. When
key to display the Digits Edit Box.
and
arrow keys multiple times to scroll the highlighted
and
arrow keys multiple times to scroll the digit
key to set the Gate value and return to the menu screen, or
key to return to the measurement screen and begin
138
key multiple times to tab left until the
key
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