Rohde & Schwarz R&S SMU200A, Руководство по обслуживанию

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Test Procedures R&S SMU200A
1007.9845.82 1.50
E-12
Aliasing Filter Bandwidth
Test equipment - Power meter (Table 1-2, item 8)
-
Signal generator (Table 1-1, item 5)
Test setup
Connect the I output of the DUT to the power meter,
and connect RF-output of the signal generator to the I input of the
DUT.
Measurement
Settings on DUT:
RF Off
I/Q Settings menu:
Source Internal Baseband
State On
BB In Settings menu:
State On
Mode analog input
Crest Factor 3 dB
Peak Level 0 dBfs
Setting on signal generator:
Level 4 dBm (corresponding to 0.5 V
p-p
)
Frequency 100 kHz
I/Q Settings menu:
State Off
Settings on RF power meter:
high resolution.
Make a reference measurement by connecting the RF output of the
signal generator directly to the input of the power meter.
Reconnect the output of the signal generator to the I- input of the
DUT and the I-output of the DUT to the input of the power meter.
Repeat the procedure for 1.1 MHz, 5.1 MHz, 10.1 MHz, 15.1 MHz,
20.1 MHz, 25.1 MHz and 30.1 MHz. The difference of the two
measured levels at each frequency gives the frequency response of
the DUT baseband section on the I-Channel. The frequency response
should be within the specified roll-off.
Repeat the measurement for the Q- inputs and outputs of the signal
generator