NF WF1943B, Инструкция по эксплуатации

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7.3 Performance tests
WF1943B
7-7
„
Amplitude vs. frequency characteristics
Connection: Use coaxial cable to connect FUNCTION OUT to AC voltmeter 2 (50
Ω
termination).
Setting: Initialize, then set the amplitude to 20 Vp-p/open and select the frequency and
waveform as indicated in the table.
Measurement: Measure the true rms output voltage for each frequency and waveform.
Judgment: The normal ranges are indicated in the table.
Waveform
1 kHz
Setting
to 500 kHz to 1 MHz to 3 MHz to 10 MHz to 15 MHz
(Reference value) +0.2/-0.3 dB +0.2/-0.3 dB +0.35/-0.7 dB +0.5/
−
1.5 dB +0.5/
−
2.0 dB
(Reference value)
±
0.3 dB ―――― ―――― ―――― ――――
(Reference value)
±
0.3 dB
±
0.3 dB
―――― ―――― ――――
(Reference value)
±
0.5 dB
―――― ―――― ―――― ――――
(Reference value)
±
0.5 dB ―――― ―――― ―――― ――――
„
Sinewave distortion
Connection: Use coaxial cable to connect FUNCTION OUT to a distortion meter (50
Ω
termination).
Setting: Initialize, then set the amplitude to 20 Vp-p/open and the frequency as indicated in the
table.
Measurement: Measure the distortion
Judgment: The normal range is indicated in the table.
Frequency Normal range
10 Hz to 100 kHz 0.2 % or less
(Bandwidth 500 kHz)