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Keysight M9391A PXIe Signal Analyzer & M9381A PXIe Vector Signal Generator 1 MHz to 3 GHz or 6 GHz
The LO Distribution Network is an 8-way splitter that operates in a frequency range
of 400MHz to 6GHz and splits the LO output from a single M9301A synthesizer to
eight VSGs or eight VSAs. The LO Distribution Network also contains a power
amplifier to compensate for the splitter losses. As shown above, the LO Distribution
Network has one LO input (LO IN) and 8 outputs (OUT 1-8).
Because the M9018/M9019A chassis use a non-standard foot, the LO Distribution
Network comes with special brackets that must be used so that the chassis and the
LO Distribution Network can be stacked. When stacked, each unit is slightly behind
the one below it to safely support the weight. This bracket enables semi-rigid
cables to be used for interconnections. When powering up the instruments, ensure
that the master chassis is powered up after the other chassis and the LO
Distribution Network are powered up.
When the carrier phase must be aligned between channels (beamforming, relative
phase measurements), cable the instrument as follows:
– Primary 100 MHz connections (8121-2175, long SMB-SMB); chassis
sync; 10 MHz distribution
– Secondary 100 MHz & IF connections (8120-5091, short SMB-SMB);
trigger cables
– LO distribution connections; Semi-rigids (V2800-20006, V2800-20008,
V2800-20009)
– PCIe cable (Y1202A)
– Unused M9301A modules
