Racal Instruments 3162A/B, User Manual

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User Manual 3162A/B
Maintenance and Performance Checks 5-11
2. Connect the A channel output to the distortion analyzer input.
3. Load a 5000-point sine waveform to both A and B channels. Use
TRACe# command or WaveCAD to load the waveform.
4. Set the distortion analyzer to % distortion measurements, set the
Model 3162B sample clock setting, and verify the distortion reading
for both channels as below.
3162B SCLK Setting Distortion Reading
500e6 <0.5%
50e6 <0.5%
5e6 <0.5%
500e3 <0.5%
50e3 <0.5%
5. Tune the spectrum analyzer to the carrier frequency and adjust the
gain so the fundamental corresponds to 0 dB.
6. Connect the Model 3162B output to spectrum analyzer input
through a 20dB feedthrough attenuator. Using the command
FUNC:MODE FIX, modify both channels to output sine waveforms.
7. Set the Model 3162B FREQ setting and verify the harmonic
distortion levels for both channels as follows:
FREQ Setting Harmonic Level
10 MHz <40 dBc
50 MHz <25 dBc
100 MHz <25 dBc
200 MHz <25 dBc