Agilent Technologies 4395A, Manual Change

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Front P anel
6. Analyzer Input T erminals R, A, and B
These are input terminals through which the 4395A receives signals output from the RF OUT
terminal and then fed through the test circuit. How to use these input terminals diers
depending on which analyzer mode you use:
In network analyzer mode , use the A and B terminals to receive signals output from the RF
OUT terminal and then fed through the device under test (DUT), and use the R terminal to
directly feed back the signal output from the RF OUT terminal to provide the reference input
signal. Y ou may want to use a power splitter to split the RF OUT signal among the input
terminals .
In spectrum analyzer mode , you can use any of these three terminals to monitor the spectrum
of the input signals .
In impedance analyzer mode , which is available with option 010, use the R and A terminals to
monitor the voltage and current across the DUT being fed with the signals output from the RF
OUT terminal.
These terminals comply with INST ALLA TION CA TEGORY I of IEC 1010-1.
Note
Do not exceed the operating input power , voltage , and current level
and signal type appropriate for the instrument being used, refer to your
instrument's operation manual.
Note
Electrostatic discharge(ESD) can damage the highly sensitive
microcircuits in your instrument. ESD damage is most likely to occur as the
test xtures are being connected or disconnected. Protect them from ESD
damage by wearing a grounding strap that provides a high resistance path to
ground. Alternatively , ground yourself to discharge any static charge built-up
by touching the outer shell of any grounded instrument chassis before touching
the test port connectors .
7. RF OUT Connector
Connects the RF output signal from the analyzer's internal source to a test set or power
splitter . The output impedance at this connector is 50 .
Note that, in spectrum analyzer mode , the RF output is disabled by default. When you perform
zero span measurement in spectrum analyzer mode , you can turn the RF output on.
8. DC SOURCE (DC V oltage/Current Output) Connector (Option 001)
This connector , located on the front panel, supplies up to 640 V / 6100 mA of DC
voltage/current.
4-4 Front and Rear Panels