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Multi-Channel Measurements
When using the M9703A digitizer in VSA configuration, the digitizer forms the meas-
urement front-end data acquisition hardware for the 89600 VSA software. The
M9703A digitizer supports single channel I+jQ, multi-channel Dual I + jQ, and cross
channel measurement configurations. The analysis bandwidth and maximum sample
rate depend on whether the digitizer model is M9703A-SR1 or M9703A-SR2.
Interleaved Mode
The option of using two channels of the M9703A in Interleaved mode is provided if
your product has been ordered with the -INT option. This in effect provides double the
sampling rate with the trade-off of halving the available center frequency range. As
shown in the table:
Mode
Normal (Non-Inter-
leaved)
Interleaved
does not cross the Nyquist frewquency.
Interleaved mode may be enabled by opening the Input > Extensions.. window from
the menu bar. Then select the Enable Interleaving option, changes are applied imme-
diately.
M9703A Hardware Extension of 89600 VSA Software
Model
Option
-SR1
-SR2
-SR1
-SR2
For best measurement fidelity you should ensure that the center frequency + analog bandwidth/2
Keysight M9703A Hardware Extension of 89600 VSA Software
Center Frequency
Range
0 - 1 GHz
0 - 1.6 GHz
0 - 1 GHz
Sampling
Rate
1 GS/s
1.6 GS/s
2 GS/s
3.2 GS/s
7
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