19
1) Procedure
(1) Set the desired frequency.
(2) Select the output waveform and amplitude. ([Figure 7]
①
)
(3) Set the SYMMETRY to adjust the waveform to the appropriate duty
cycle. ([Figure 7]
④
)
2.4GHz Programmable Universal Counter
C3100
G5100
Programmable Function Generator
[Figure 11] Standard disposition for the pulse creation
2) Reference (supplementary Information)
(1) When creating a saw tooth, skewed sine or pulse waveform, the frequency and period of the
waveform can be measured using an oscilloscope.
(2) To measure the pulse width easily and accurately, use a higher Sweep Speed to spread the
waveform over several divisions of the screen using the time/Div switch. To measure the
Repetition rates use a lower sweep speed. (See 2 and 4 of Fig 12)
(3) Repetition Rate can be expressed either as a frequency or time period. Repetition Rate can be
measured in time on the Oscilloscope and changed to a frequency by using the formula F=1/T
where T is the total time units as shown on the oscilloscope screen. Repetition Rate is the total
time period of the waveform. The pulse width normally is the time the pulse is in positive portion
of the waveform. The Repetition rate of a ramp waveform may be measured using this
procedure (see 1 of Fig 12)
(4) The Repetition Rate of a waveform is easily and accurately measured by using a Frequency
Counter. The frequency is read directly from the counter readout (see 5 of Fig 12)
(5) The Width of a square wave can be measured by using a Frequency Counter. The pulse Width
is equal to 1/2 period of the Square waveform. (Refer to Figure 12-3) Frequency = 1/ (Pulse
width x 2)
(6) (Refer to Figure 12-3)
Frequency = 1/ (Pulse width x 2)
