Chapter 2 Performance Verification Test
RIGOL
DG1000Z Performance Verification Guide
2-9
AC Flatness Test
Specification:
Output Characteristic
Flatness
Typical (Sine, 2.5Vpp)
≤10MHz: ±0.1dB
≤60MHz: ±0.2dB
Test Procedures:
1.
Make sure that the environment temperature is between 18
℃
and 28
℃
and
DG1000Z has been warmed up for at least 30 minutes. Connect the 50Ω load to
the channel output terminal (take CH1 as an example; the test method is also
applicable to CH2) of DG1000Z; connect the 50Ω load and the voltage input
terminals of the digital multimeter using a BNC-Dual banana plug connecting
cable as shown in Figure 2-2.
2.
Turn on DG1000Z. Press Utility
Set To Default
OK to restore DG1000Z
to the factory setting.
3.
Set DG1000Z:
a)
Set the output impedance of CH1 to 50Ω (press Utility
Channel Set
Output Set
Imped and select “Load”).
b)
Set the output waveform of CH1 to a sine waveform with 1kHz frequency
and 2.5Vpp amplitude.
c)
Press Output1 to turn on the output of CH1.
4.
Turn on the multimeter and select the ACV measurement function. Turn on the
dBm operation function and set the reference resistance to 50Ω. Read the
measurement value and take it as the reference power (P
ref
).
Tip:
In this step, if the dBm operation function is not turned on, you can also
calculate the reference power using the formula
]
1
/
)
/
[(
10
ref
2
reading
10
mW
R
V
Log
dBm
×
=
according to the measurement value of
