NI 5622 Calibration Procedure
34
ni.com
SSB Phase Noise
Complete the following steps to verify the single sideband phase noise of
the NI 5622.
1.
Make the following connections:
a.
Connect the 3 dB attenuator to the signal generator.
b.
Connect the SMA cable to the 3 dB attenuator.
c.
Connect channel 0 (IF IN) of the digitizer to the other end of the
SMA cable.
2.
Open a session and obtain a session handle using the niScope
Initialize VI.
3.
Configure the input impedance and the maximum input frequency
using the niScope Configure Chan Characteristics VI.
LabVIEW VI
C/C++ Function Call
Call
niScope_init
with the following
parameters:
resourceName
: The device name assigned by
MAX
idQuery
:
VI_FALSE
resetDevice
:
VI_TRUE
LabVIEW VI
C/C++ Function Call
Call
niScope_ConfigureChan
Characteristics
with the following
parameters:
vi
: The instrument handle from
niScope_init
channelList
:
“0”
inputImpedance
:
NISCOPE_VAL_50_OHM
maxInputFrequency
:
250,000,000
