Tektronix AFG31052 - Amplitude Test; Figure 6: Connections for the 50 Ohm Terminator Measurement

Performance verification
40 AFG31000 Series Arbitrary Function Generator Specification and Performance Verification Technical Reference
4. Set up the AFG31000 Series as shown in the following table.
Select menu Setting Operation
Function
Sine
Sine key (front panel)
Frequency
1.000000 MHz
Frequency/Period key (front panel)
Amplitude
1.00 V
pp
Amplitude/High key (front panel)
Channel 1 Output
On
Ch1 Output On key (front panel)
5. Verify that the reading on the frequency counter is between 0.9999984 MHz and 1.0000016 MHz.
6. Set up the AFG31000 Series as shown in the following table.
Select menu Setting Operation
Function Pulse Pulse key (front panel)
7. Verify that the reading on the frequency counter is between 0.9999984 MHz and 1.0000016 MHz.
Amplitude test
This test verifies the amplitude accuracy of the AFG31000 Series by checking specific amplitude
points. All output amplitudes are derived from a combination of attenuators and a 3 dB variable gain.
This test uses a 50 Ω terminator. Because the accuracy of the terminator is used as a calibration
factor, you must know the accuracy of the 50 Ω terminator before running the amplitude test.
NOTE. Record the results of this test in the test record for your model in Test records (on page 51
).
To verify amplitude accuracy:
1. Connect the 50 Ω terminator to the DMM (as shown in the following figure) and measure the
register value.
Figure 6: Connections for the 50 ohm terminator measurement