NF WAVE FACTORY WF1967, Instruction Manual (Operations, Page: 284 / 330

15.3 Performance Test
WF1967/WF1968 15-10
15.3.7 Sine Wave Non-harmonic Spurious Test
Connection:
FCTN OUT → Spectrum analyzer
Use a coaxial cable. Measure a signal up to approx. 24dBm. Use a coaxial attenuator
separately not to exceed the allowable input of the spectrum analyzer.
Setting: The following table shows the amplitude and frequency after setting initialization.
Measurement: Measure the max value of the non-harmonic spurious.
Judgment: It is normal when the value falls within the following table.
Maximum non-harmonic spurious level
Amplitude setting
(Value at 50
Ω
load)
Frequency
setting
8MHz
Frequency
setting
80MHz
Frequency
setting
200MHz
2Vp-p -55dBc or less -35dBc or less -35dBc or less
15.3.8 Square Wave Duty Accuracy Test
Connection:
FCTN OUT → Universal counter (50Ω termination)
Use a coaxial cable.
Setting: Set the waveform to square and the amplitude to 20Vp-p/open after setting
initialization. The following table shows the duty variable range setting, the
frequency setting, and the duty setting.
Measurement: Set the universal counter to duty measurement mode. Set the trigger level of the
universal counter to 0V. Average the measured values because they vary due to
jitter (especially when the duty variable range is extend).
Judgment: It is normal when the value falls within the following table.

Duty variable range standard
Frequency Duty
300kHz
When 1% is set
0.9% to 1.1%
When 50% is set
49.9% to 50.1 % When 99% is set
98.9% to 99.1%
3MHz
When 5% is set
4% to 6%
When 50% is set
49 % to 51 %
When 95% is set
94% to 96%
10MHz
When 40% is set
37% to 43%
When 50% is set
47% to 53%
When 60% is set
57% to 63%

Duty variable range extend
Frequency Duty
300kHz
When 1% is set
0.9% to 1.1%
When 50% is set
49.9% to 50.1%
When 99% is set
98.9% to 99.1%
3MHz
When 5% is set
4% to 6%
When 50% is set
49% to 51%
When 95% is set
94% to 96%
10MHz
When 40% is set
37% to 43%
When 50% is set
47% to 53%
When 60% is set
57% to 63%