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Adjustment Procedures
5-6
AWG710 Service Manual
Adjustment Instructions
This procedure adjusts Y5200 on the A50 AWG board to set the AWG710
Arbitrary Waveform Generator clock frequency.
Equipment
Required
One frequency counter (Item 2)
One 50 W coaxial cable (Item 3)
Do the following steps to connect the test equipment and set the test equipment
controls:
1. Use a 50 W BNC coaxial cable to connect the waveform generator 10 MHz
REF OUT connector to the input A connector on the frequency counter.
Input
AWG710 Arbitrary Waveform Generator
Frequency counter
50 W BNC coaxial cable
10 MHz REF OUT
Figure 5-2: Hookup for the reference clock frequency adjustment
2. Set the frequency counter controls as follows:
Input A Coupling . ............. AC
Function .................... AFrequency
Gate Time . ................. 0.2s
Level . ..................... 0V
3. Set the waveform generator controls as follows:
Press UTILITY Ý System Ý Factory Reset Ý OK.
4. Follow the substeps below to load the waveform:
a. Press Service Ý Tweak AWG2 (pop-up) Ý OK.
b. Press Clock Ref. DAC
5. Turn the general purpose knob to adjust the oscillator so that the frequency
counter reading is in the range of 10.0 MHz ±2 Hz (0.2 ppm).
6. Press Save to save the setting.
7. Disconnect the frequency counter.
Reference Clock
Frequency