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Setup Keys
The keys in the TRACE, CHANNEL, DISPLAY, SYSTEM and SUPPORT keypads call up groups of
related measurement settings. Each key corresponds to a drop-down menu or menu command of the
graphical user interface.
The TRACE keys give access to all trace settings and the functions to
select, modify and store different traces. In addition the menu provides the
marker, search and limit check functions.
•
MEAS selects the quantity to be measured and displayed.
•
FORMAT defines how the measured data is presented in the graphical
display.
•
SCALE defines how the current trace is presented in the diagram
selected in the Format submenu.
•
TRACE SELECT provides functions to handle traces and diagram areas,
and assign traces to channels.
•
LINES defines limits for measured values and activates the limit check.
•
TRACE FUNCT(ions) store traces to the memory and perform
mathematical operations on traces.
•
MARKER positions markers on a trace, configures their properties and
selects the format of the numerical readout.
•
SEARCH uses markers to locate specific points on the trace.
•
MARKER FUNCT(ions) define the sweep range, scale the diagram and
introduce an electrical length offset using the active marker.
The CHANNEL keys give access to all channel settings and the functions to
activate, modify and store different channels.
•
START CENTER or STOP SPAN define the sweep range, depending on
the sweep type.
•
POWER BW AVG defines the power of the internal signal source, sets
the step attenuators and the IF bandwidths, and configures the sweep
average.
•
SWEEP defines the scope of measurement, including the sweep type,
the trigger conditions and the periodicity of the measurement.
•
MODE opens the Port Configuration dialog to define the properties of the
physical and logical (balanced) test ports.
•
CHAN SELECT provides functions to handle and activate channels.
•
CAL provides all functions that are necessary to perform a system error
correction (calibration).
•
OFFSET provides a selection of length offset parameters to shift the
measurement plane.
The DISPLAY keys give access to all display settings and to the functions to
activate, modify and arrange different diagram areas.
•
AREA SELECT provides functions to create and delete diagram areas
and select an area as the active area.
•
DISPLAY CONFIG provides functions to arrange traces to diagram
areas, arrange the diagram areas in the active window and configure the
screen and the diagram areas.
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The SYSTEM keys give access to the functions to return to a defined
instrument state and select general system settings.
•
PRESET performs a general factory preset or user preset.
•
SYSTEM CONFIG selects general system settings which do not only
apply to a particular setup.
A second group of keys (uncolored) provides standard Windows™
functions to save, recall or print setups and call up the measurement
wizard.
•
SAVE saves an opened setup to a specific file.
•
RECALL recalls an existing setup from a file.
•
PRINT prints a setup.
The SUPPORT keys give access to the functions to reverse operations,
retrieve information on the instrument and obtain assistance.
•
UNDO reverses the previous operation.
•
INFO calls up a table providing information about the current setup.
•
HELP calls up the on-line help system.
A second group of keys (uncolored) is used to navigate within the
graphical user interface:
•
MENU sets the cursor to the first item (File) in the menu bar of the active
application (network analyzer or help system) if no dialog is open. In the
network analyzer (NWA) application, menus are equivalent to softkeys
and provide fast access to all instrument functions. The menus in the
help system are required for accessing all help functions by means of the
front panel keys. In NWA dialogs, the MENU key opens the control menu
to move or close the dialog.
•
The Windows key opens the startup menu of Windows XP from where it
is possible to perform system configurations and call up additional
software utilities.
Navigation Keys
The keys in the NAVIGATION keypad are used to navigate within the NWA
screen and the Help system, to access and control active elements.
The Left Field (= Tab) or Right Field (= Shift Tab) keys switch between
several active elements in dialogs and panes, e.g. in order to access:
•
All control elements (e.g. buttons, numerical or text input fields, radio
buttons, checkmarks, combo boxes etc.) in a dialog
•
All links in a Help topic
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The Cursor Up and Cursor Down keys are used to:
•
Scroll up and down in lists, e.g. among menu items, in a list of
keywords, in the Help table of contents, or in the Help topic text
•
Increase and decrease numeric input values
Cursor Up (Down)become inactive as soon as the beginning of the list is
reached. Cursor Up (Down) is equivalent to a rotation of the rotary knob to
the right (left).
The Cursor Left and Cursor Right keys are used to:
•
Move the cursor to the left or right within input fields
•
Compress or expand menus or the Help table of contents
•
Move the highlighted item in the menu bar of the active application
OK ENTER is used to:
•
Activate the selected active control element, e.g. a button in a dialog or
a link in the Help
•
Confirm selections and entries made and close dialogs
OK ENTER is equivalent to pressing the rotary knob or the OK ENTER key
in the DATA ENTRY keypad.
The Checkmark (= Space) key switches a checkmark control in a dialog on
or off.
The CANCEL ESC key is used to:
•
Close dialogs without activating the entries made (equivalent to the
Close button)
•
Close the Help
CANCEL ESC is equivalent to the CANCEL ESC key in the DATA ENTRY
keypad.
Data Entry Keys
The keys in the DATA ENTRY keypad are used to enter numbers and units.
The ESC CANCEL and OK ENTER keys are equivalent to the
corresponding keys in the NAVIGATION keypad.
The remaining DATA ENTRY keys are only enabled while the cursor is
placed on a data input field in a dialog or in the Help navigation pane.
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...
The keys 0 to 9 enter the corresponding numbers.
The function of the . and – keys depends on the data type of the active input
field:
•
In numeric input fields, the keys enter the decimal point and change the
sign of the entered numeric value. Multiple decimal points are not allowed;
pressing – for a second time cancels the effect of the first entry.
•
In character input fields, the keys enter a dot and a hyphen, respectively.
Both entries can be repeated as often as desired.
...
The function of the four unit keys depends on the data type of the active input
field; see Data Entry section in Chapter 3.
•
In numeric input fields (e.g. in the numeric entry bar), the G/n, M/
µ
, k/m or
x1 keys multiply the entered value with factors of 10
(-)9
, 10
(-)6
, 10
(-)3
or 1 and
add the appropriate physical unit. x1 is equivalent to OK ENTER. It
confirms the previous entry and deactivates the input field (closes the
numeric entry bar).
•
In character input fields, the G/n, M/
µ
, k/m keys enter the letters G, M, K,
respectively. x1 is equivalent to OK ENTER. It confirms the previous entry
and deactivates the input field (closes the numeric entry bar).
BACK deletes the last character before the cursor position or the selected
character sequence. If an entire numeric value is selected, BACK moves the
cursor in front of the first digit.
Rotary Knob
The rotary knob increases and decreases numerical values, scrolls within lists,
activates controls and confirms entries.
Turning or pressing the rotary knob is equivalent to the action of the
Cursor Up and Cursor Down keys or the ENTER key in the NAVIGATION
keypad.
STEP SIZE opens an input box to select the steps (in units of the current physical
parameter) between two consecutive values if the rotary knob is turned to increase
or decrease numeric values. See Dialogs in Chapter 3.
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STANDBY Key
The STANDBY toggle switch is located in the bottom left corner of the front panel.
The key serves two main purposes:
•
Toggle between standby and ready state
•
Shut down the instrument.
Test Ports
N-connectors, numbered 1 to 4 (for four-port instruments). The test ports serve as outputs for the RF
stimulus signal and as inputs for the measured RF signals from the DUT (response signals).
•
With a single test port, it is possible to generate a stimulus signal and measure the response signal
in reflection.
•
With 2, 3 or 4 test ports, it is possible to perform full two-port, 3-port or 4-port measurements; see
S-Parameters section in Chapter 3.
Attention!
The maximum input levels at all test ports according to the front panel labeling or
the data sheet must not be exceeded.
In addition, the maximum input voltages of the other input connectors at the front
and rear panel must not be exceeded.
The three LEDs above each test port indicate the connector state:
The amber LED is on while the connector is used as a source port.
The green LED is on while the connector is used as a bidirectional (source and receive) port.
The blue LED is on while the connector is used as a receive port.
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USB Connector
Double Universal Serial Bus connector of type A (master USB), used to connect e.g a keyboard, mouse
or other pointing devices, the Calibration Unit (accessory R&S ZV-Z51/-Z52 or R&S ZV-Z58), a printer
or an external storage device (USB stick, CD-ROM drive etc.).
The length of passive connecting USB cables should not exceed 1 m. The maximum current per
USB port is 500 mA.
Ground Connector
Connector providing the ground of the analyzer's supply voltage.
Attention!
Electrostatic discharge (ESD) may cause damage to the electronic
components of the DUT and the analyzer. Use the wrist strap and cord
supplied with the instrument to connect yourself to the GND connector.
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Rear Panel Tour
This section gives an overview of the rear panel controls and connectors of the network analyzer.
The rear connectors are described in detail in the annex Hardware Interfaces in the online help
system.
•
PORT BIAS comprises four inputs for an external DC voltage (bias) to be applied to the test ports. Each
PORT BIAS input is protected by an exchangeable fuse.
•
IEC Bus is the GPIB bus connector (according to standard IEEE 488 / IEC 625).
•
AUX is an auxiliary connector, to be wired as needed. AUX is not fitted on standard instruments.
•
LAN 1 and LAN 2 are two equivalent connectors to connect the analyzer to a Local Area Network.
•
USB is a double Universal Serial Bus connector of type A (master USB), used to connect a keyboard,
mouse or other pointing device.
•
10 MHz REF serves as an input or output for the 10 MHz reference clock signal.
•
DC MEAS comprises two inputs for DC measurements, specified for different voltage ranges.
•
MONITOR is a sub-Min-D connector used to connect an external VGA monitor.
•
CASCADE is a RJ-45 connector for further extensions.
•
USER CONTROL is a D-sub connector used as an input and output for low-voltage (3.3 V) TTL control
signals.
•
EXT. TRIGGER is an input for a low-voltage (3.3 V) TTL external trigger signal.
Attention!
The maximum input levels and voltages of the input connectors at the front and
rear panel must not be exceeded.
The EXT TRIGGER input connector and pin 2 of the USER CONTROL connector
must never be used simultaneously as inputs for external trigger signals.
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Putting the Instrument into Operation
This section describes the basic steps to be taken when setting up the analyzer for the first time.
Important Note:
Before turning on the instrument, please make sure that the following conditions are
fulfilled:
•
Instrument covers are in place and all fasteners are tightened.
•
Fan openings are free from obstructions.
•
Signal levels at the input connectors are all within the specified maxima.
•
Signal outputs are correctly connected and not overloaded.
•
The instrument is dry and shows no condensation.
Non-observance may cause damage to the instrument!
Unpacking the Instrument and Checking the Shipment
1. Unpack the instrument and the other contents of the shipping container.
2. Check the shipment against the list of accessories to ensure that all items are included.
3. Remove the two protective caps from the front and rear and carefully inspect the analyzer to
make sure that it was not damaged during shipment.
Should the instrument be damaged, immediately notify the forwarder who shipped the instrument to you
and keep the container and packing material.
Equipment returned or sent in for repair must be packed in the original container or packing with
electrostatic protection. It is recommended to keep at least the two protective caps for front and rear
side in order to prevent damage to the controls and connectors.
Instrument Setup
The network analyzer is designed for use under laboratory conditions, either on a bench top or in a
rack. The general ambient conditions required at the operating site are as follows:
•
The ambient temperature must be in the ranges specified for operation and for compliance with
specifications (see data sheet).
•
All fan openings including the rear panel perforations must be unobstructed. The distance to the
wall should be at least 10 cm.
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Attention!
To avoid damage of electronic components of the DUT and the analyzer, the
operating site must be protected against electrostatic discharge (ESD). ESD is
most likely to occur when you connect or disconnect a DUT or test fixture to the
analyzer's test ports.
To prevent ESD damage use the wrist strap and grounding cord supplied with
the instrument and connect yourself to the GND connector at the front panel.
Bench Top Operation
If the analyzer is operated on a bench top, the surface should be flat.
The instrument can be used in horizontal position, standing on its feet, or with the support feet on the
bottom extended.
CAUTION!
The feet must be fully folded in or out. Only in this way can the stability of analyzer
be guaranteed and reliable operation be ensured.
The total weight on the extended feet (including the analyzer's weight and other
units placed on top) must not exceed 500 N. The units must be secured against
slipping (e.g. by locking the feet at the upper front frame).
When moving the unit with expanded feet, the feet might collapse and fold in. To
avoid injuries, the unit must therefore not be moved with the feet out.
Mounting in a 19" Rack
Using the adapter ZZA-511 (order number 1096.3290.00) the instrument can be mounted in 19" racks
according to the mounting instructions supplied with the rack adapter.
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Attention!
•
Allow for sufficient air supply in the rack.
•
Make sure that there is sufficient space between the ventilation holes and the
rack casing.
EMI Protective Measures
In order to avoid electromagnetic interference, the instrument may only be operated when it is closed
and with all shielding covers fitted. Only appropriate shielded signal and control cables may be used.
Connecting the Instrument to the AC Supply
The network analyzer is automatically adapted to the AC supply voltage supplied. The supply voltage
must be in the range 100 V to 240 V; 50 Hz to 60 Hz. The mains connector is located at the bottom left
corner of the rear panel.
Connect the network analyzer to the AC power source using the AC power cable delivered with the
instrument.
The maximum power consumption of the analyzer is 450 W. The typical power consumption and the
frequency range is listed in the data sheet.
The network analyzer is protected by two fuses as specified on the label on the power supply. The
fuses are located on an AC Fuse Board (order no. 1145.3906.02) which must be replaced to change
the fuses. Replacing the AC Fuse Board requires opening the instrument and is described in the
service manual.
Power on and off
The mains connector is located at the bottom left corner of the rear panel.
To turn the power on or off, press the AC power switch to position I (On) or 0 (Off).
After power-on, the analyzer is in standby or ready state, depending on the state of the STANDBY
toggle switch at the front panel of the instrument when the instrument was switched off for the last time.
The AC power switch can be permanently on. Switching off is required only if the instrument
must be completely removed from the AC power supply.
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