Adjustment procedures
29
AFG31000 Series Arbitrary Function Generator Service Manual
2. Push the Default front-panel button to recall the AFG default setup.
3. Set up your arbitrary function generator as shown in the next table:
Select menu Setting Front panel operation
1.00 V
pp
4. Press the Utility button.
5. Select Service > Manual Calibration > Reference Clock Cal.
6. Adjust the Ref Clock value with the rotary knob so that the frequency counter reading is between
0.999999 MHz and 1.000001 MHz.
7. Select the Save Cal to save the adjusted value.
Flatness adjustment
To obtain a flat sine wave relative to a 1 kHz sine wave, compensate the output level of the sine
waveform at a 100 kHz and 5 MHz interval with a power meter.
To obtain a flat sine wave with a 1 kHz reference:
1. Connect the arbitrary function generator to a 50 Ω terminator to a power meter with a power
head.
Figure 12: Flatness adjustment
2. Set up the arbitrary function generator using the following steps:
Select menu Setting Operation
Amplitude units
V
PP
On the touchscreen select the Basic icon > Units > V
PP
1.0 V
PP
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