Keysight M9391A PXIe Signal Analyzer & M9381A PXIe Vector Signal Generator 1 MHz to 3 GHz or 6 GHz
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Other module and instrument placements can be used, but this configuration
optimizes speed and makes cabling simpler for phase coherent configuration.
The M9300A PXIe Frequency Reference must be installed in slot 10 for proper
time synchronization between instruments. For more information, see
the M9300A Frequency Reference
Cabling is different for time-synchronization-only (independent LO) configuration
and phase-coherent (shared LO) configuration. See the following sections for
cabling information:
Time-Synchronized Only, Multi-Channel PXIe VSA & VSG (Independent LO)
When phase coherence is not required, cable the instrument as follows for time
synchronized multi-channel operation for independently tunable channels.
8x8 Independent LO Cable Connections:
– Primary 100 MHz connection (8121-2175, long SMB-SMB); chassis
sync; 10 MHz distribution
– Secondary 100 MHz and IF connections (8120-5091, short SMB-SMB);
trigger cables
– LO distribution connections; semi-rigids (W1312-20266 and W1312-
20267 for M9381A VSGs and W1312-20237 for M9391A VSAs)
– PCIe cables (Y1202A)
– RF loopback
Phase-Coherent, Multi-Channel PXIe VSA & VSG (Shared LO)
Unlike the independent LO use case, phase-coherency requires the V2802A LO
Distribution Network to be placed between each pair of chassis. For more
information, refer to
V2802A LO Distribution Network
be aligned between channels (beamforming, relative phase measurements), cable
the instrument as follows:
