3 IQ Analyzer (Basic) Mode
3.1 Complex Spectrum Measurement
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To use EDC in N9041B, you must use the RF Input 2 (RF2) port
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To use EDC in N9042B with V3050A, you must use the RF External (Ext) port
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The IF signal is sent from the instrument to the External Digitizer via External IF
Out. Thus, the EXT IF OUT port at the rear panel of the instrument needs to be
connected to Channel 1 of the External Digitizer. The cable must be connected
to Channel 1; not to any other channel port
Connecting an Oscilloscope as an External Digitizer
The following oscilloscopes are supported:
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Keysight S-Series DSOS804A
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Keysight S-Series with DSOS8GBW (8GHz bandwidth upgrade)
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Keysight S-Series with DSOV134A
To connect one of these oscilloscopes for External Digitizer Control (EDC):
1 Connect the input signal to the Input connector of your instrument:
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For N9041B, input signal must be connected to RF Input 2 as shown below
–
For N9042B, connect to RF In, however if V3050A is connected, use the connector from
V3050A
2 Connect the Ext IF Out connector on the instrument to the Channel 1 input of the
Oscilloscope:
–
For N9041B, this is located on the rear upper left of the instrument
–
For N9042B, this is located on the lower left of the front panel
3 Connect a USB3 cable (blue connectors) from the rear panel of the instrument to the rear
panel of the Oscilloscope
4 For best frequency accuracy, connect the 10MHz reference out of the instrument to the
10MHz reference in of the oscilloscope
IMPORTANT
Make sure to use a USB3 cable (with blue connectors);
not
an older USB2 cable.
Connect it as shown below:
IQ Analyzer Mode User's &Programmer's Reference 244
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