Performance veri
fi
cation
5.
Record the result in the test record.
6.
Repeat steps 2 through 5 for CH2.
Amplitude test
This test should be done once in Basic mode and once in Advanced mode to
verify the amplitude accuracy of the generator. This test uses a 50
Ω
terminator.
It is necessary to know the accuracy of the 50
Ω
terminator in advance of this
amplitude test. This accuracy is used as a calibration factor.
Basic mode
1.
Connect the 50
Ω
terminator to the DMM as shown in the following
fi
gure
and measure the register value.
Figure 2: 50
Ω
terminator accuracy
2.
Calculate the 50
Ω
calibration factor (CF) from the reading value and record
as follows:
CF (Calibration Factor) = 2
/
(1 + 50
Ω
/ Measurement
Ω
)
Measurement (reading of the DMM)
CF
Ω
Examples
50.50
Ω
1.0050 (= 2 / (1 + 50 / 50.50))
49.62
Ω
0.9962 (= 2 / (1 + 50 / 49.62))
3.
Connect the generator to the DMM as shown in the following
fi
gure. Be sure
to connect the 50
Ω
terminator to the generator’s side output connector.
Figure 3: Amplitude test, Basic mode
34
AWG4162 Speci
fi
cations and Performance Veri
fi
cation