Agilent Technologies ENA Series Guía de usuario Pagina 324

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318 Chapter 8
Frequency-Offset Measurement (Option 008)
Measurement of Mixers
2. Setting External Signal Source
The E5070B/E5071B allows you to control the external signal source that is connected to
USB/GPIB interface.
Preparations for controlling external signal source
To control the external signal source from the E5070B/E5071B, you must connect its USB
port and the external signal source’s GPIB connector via the USB/GPIB interface as shown
in Figure 8-3. Then on the E5070B/E5071B you must specify the GPIB address and the
type of external signal source.
Figure 8-3 Connection between external signal source and E5070B/E5071B
NOTE The settings of the USB/GPIB interface must be made in advance. See "Setting the GPIB"
on page 428 for more information.
NOTE To use an external signal source, we recommend that you connect the E5070B/E5071B’s
internal reference signal output connector and the external signal source’s external
reference signal input connector with BNC cable. This ensures stable measurement
because the external signal source is phase-locked on the E5070B/E5071B’s frequency
reference signal.
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