Tektronix AWG615 Service Manual page 162

Performance Verification
Check VCO OUT
Check 10MHz Reference
4-52
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b. Set the function generator (AFG310) controls:
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Square
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz
frequency
1. Follow the substeps below to set the AWG615 Arbitrary Waveform Generator
controls and select the waveform file:
a. Push UTILITY (front–panel)!System (bottom)!Factory Reset
(side)!OK (side).
b. Load the MODE.WFM file.
Refer to Loading Files on page 4-8 for file loading procedures.
c. Push HORIZONTAL MENU (front–panel)!Clock (side).
d. Push 2, ., 5 and G (SHIFT+CLR) keys in this order or turn the general
purpose knob to set the internal clock frequency to 2.5 GHz.
2. Push the RUN button.
The LED above the RUN button is on.
3. Verify that the frequency counter reading is 2.5 GHz ± 2.5 kHz (using internal
reference clock).
4. Retain the test hookup.
Input
5. Push HORIZONTAL MENU (front–panel)!Clock Ref (side) so that the
AWG615 Arbitrary Waveform Generator reference clock is set to External.
6. Verify that the frequency counter reading is approximately 2.50 GHz (using
external reference clock).
7. Change the function generator controls as follows:
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.9 MHz
8. Check that the frequency counter reading is approximately 2.475 GHz.
9. Turn the function generator output off and disconnect the function generator
and frequency counter.
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V into 50 Ω (4.0 V into 1 MΩ)
Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . On
AWG615 Service Manual