Chapter 2 Operating Your Frequency Counter
Using CHANNEL 1 Input Conditioning Keys
2-46 Operating Guide
2
8 Press any one of the arrow keys until SLOPE: NEG is displayed.
The trigger is set at negative; thus, the Counter triggers on the falling edge of the
input signal as shown in the following figure.
9 To set the input channel sensitivity, press Trigger/Sensitivity key until
SENSTVTY: HI is displayed.
If sensitivity is not set to HI, then press any one of the arrow keys to change to HI.
The Counter’s CHANNEL 1 sensitivity is set high as shown in the following figure.
Refer to the section titled “DEFINITION OF SENSITIVITY” on page 2-42 in this
chapter for information on sensitivity.
The Counter should now be triggering as determined by the sensitivity level, and
displaying the input signal’s frequency if the input signal peak-to-peak voltage is
large enough for the selected sensitivity level.
The signal must travel completely through the trigger band before a valid trigger is
recognized.
1V
0V
* ***
12 34
Trigger
Band
0V