R&S ZVA-Z75 Manuel utilisateur
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -
Z170, -Z220, -Z325, -Z500
Converters
Quick Start Guide
Quick Start Guide
1307.7039.62 ─ 10
(=7ÔWÌ)
Test & Measurement
This Quick Start Guide describes the following converter types:
●R&S® ZVA-Z75, Converter WR15, stock no. 1307.7400.02
●R&S® ZVA-Z90, Converter WR12, stock no. 1322.3024.02
●R&S® ZVA-Z110, Converter WR10, stock no. 1307.7000.03
●R&S® ZVA-Z140, Converter WR08, stock no. 1307.7800.02
●R&S® ZVA-Z170, Converter WR06, stock no. 1311.8707.02
●R&S® ZVA-Z220, Converter WR05, stock no. 1307.8006.02
●R&S® ZVA-Z325, Converter WR03, stock no. 1317.0514.02
●R&S® ZVA-Z500, Converter WR02, stock no. 1317.0520.02
© 2015 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
Throughout this guide R&S® is abbreviated as R&S.
Contents
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
3Quick Start Guide 1307.7039.62 ─ 10
Contents
1 Safety Instructions.................................................................................5
2 Preparing for Use...................................................................................6
2.1 Test Port Adapter (Waveguide Flange)....................................................................... 6
2.2 Output Power Adjusting Screw................................................................................... 7
2.3 Rear Panel......................................................................................................................8
2.4 Putting the Converter into Operation........................................................................10
2.5 Maintenance................................................................................................................ 17
2.6 Storing and Packing................................................................................................... 17
3 Basic Operation....................................................................................18
3.1 Required Equipment................................................................................................... 18
3.2 Measurement Principle...............................................................................................18
3.3 Activating the Frequency Converter Mode...............................................................19
3.4 Connecting the Frequency Converters.....................................................................20
3.5 Calibration................................................................................................................... 20
3.6 Measurement............................................................................................................... 22
3.7 Additional Information................................................................................................23
Index......................................................................................................24
Contents
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
4Quick Start Guide 1307.7039.62 ─ 10
Safety Instructions
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
5Quick Start Guide 1307.7039.62 ─ 10
1 Safety Instructions
This frequency converter has been designed and tested in accordance with the EC
Certificate of Conformity and has left the manufacturer’s plant in a condition fully com-
plying with safety standards.
Risk of instrument damage
To prevent instrument damage make sure to read through and observe the following
safety instructions.
ESD protective measures
To protect the frequency converter against damage due to Electrostatic Discharge
(ESD) use the wrist strap and grounding cord supplied with the network analyzer and
connect yourself to the GND connector at the front panel of the analyzer. For details
refer to the Quick Start Guide of your analyzer.
Input powers RF IN and LO IN
The RF input power at the connectors RF IN and LO IN must not exceed the maximum
values quoted in the data sheet. The maximum values are below the maximum RF
source power of the network analyzer. The frequency converter mode ensures compat-
ible source powers.
Before you connect your converter to the network analyzer, always activate the fre-
quency converter mode using the Frequency Converter dialog (see chapter 3.3, "Acti-
vating the Frequency Converter Mode", on page 19) and select the proper converter
type and connecting diagram.
Protection of waveguide flanges
The waveguide flanges of the converter and of the test port adapters must be protec-
ted against mechanical damage. Furthermore the waveguides must be shielded from
dust.
Protect the waveguide flange of the converter by leaving a test port adapter mounted.
When the converter is not in use attach one of the included protective caps to the
adapter. Also attach protective caps to the second test port adapter. Avoid scratching
the contact surfaces of the waveguide flanges.
Avoid heavy shocks
Heavy shocks can damage inner parts of the instrument. Shock-proof packing should
therefore be used for storing or dispatching the frequency converter.
Opening the instrument
Do not open the instrument. The converter must be repaired at the manufacturer's
servicing department.
Preparing for Use
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
6Quick Start Guide 1307.7039.62 ─ 10
2 Preparing for Use
This chapter gives an overview of the controls and connectors of the frequency con-
verter and provides all information that is required to put the converter into operation
and connect external devices.
Chapter 3 provides an introduction to the operation of the frequency converter. For a
list of (additional) required equipment see chapter 3.1, "Required Equipment",
on page 18.
2.1 Test Port Adapter (Waveguide Flange)
The test port with a mounted test port adapter is located at the front of the instrument.
The device under test (DUT) has to be connected to the test port adapter.
Fig. 2-1: Front of the instrument R&S
ZVA-Z500 (the other models are similar in design)
The precision waveguide flange of the test port adapter is equipped with two alignment
pins and two holes receiving the alignment pins of the DUT (see figure 2-2). Two addi-
tional holes in the middle allow to insert additional alignment pins (delivered with the
instrument). Additional pins should be used if the flange of the DUT also has holes for
receiving these pins and the accuracy of the connection shall be enhanced.
The converters R&S ZVA-Z140, R&S ZVA-Z170, R&S ZVA-Z220, R&S ZVA-Z325, and
R&S ZVA-Z500 are delivered with a standard test port adapter.
The R&S ZVA-Z110 converter is delivered with a standard adapter plus an alternative
adapter. The two adapters differ in the size of the holes receiving the alignment pins of
the flange of the DUT. The standard test port adapter has holes with a diameter of
Test Port Adapter (Waveguide Flange)
Preparing for Use
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
7Quick Start Guide 1307.7039.62 ─ 10
1.565 mm at both ends. The alternative adapter has holes with a diameter of 1.605 mm
at the DUT side. The DUT side is marked by the label "HP/A", indicating that this side
is HP/Agilent compatible (i.e. supports thicker pins).
R&S ZVA-Z75 and R&S ZVA-Z90 converters are delivered with an HP/A compatible
adapter.
Fig. 2-2: Test port adapter of R&S ZVA-Z110
Risk of damaging waveguide flanges
The waveguide flanges of the converter and of the test port adapters must be protec-
ted against mechanical damage. Furthermore the waveguides must be shielded from
dust.
Protect the waveguide flange of the converter by leaving a test port adapter mounted.
When the converter is not in use attach one of the included protective caps to the
adapter. Also attach protective caps to the second test port adapter. Avoid scratching
the contact surfaces of the waveguide flanges.
2.2 Output Power Adjusting Screw
The output power of the converter can be adjusted via the network analyzer only for
the models ZVA-Z90 and ZVA-Z110. The converter models R&S ZVA-Z75, R&S ZVA-
Z140, R&S ZVA-Z170, R&S ZVA-Z220, R&S ZVA-Z325 and R&S ZVA-Z500 (and addi-
tionally R&S ZVA-Z110) comprise an output power adjusting screw on the top of the
converter housing. When the frequency converter mode is activated at the network
analyzer, the output power of the analyzer is set to a fixed value optimized for the
selected type of frequency converter. For the R&S ZVA-Z90 and R&S ZVA-Z110 the
R&S®ZVA Frequency Converter Leveling Tool can be applied for making full use of
these converters' ability to adjust test port output power via RF input power.
The screw at the top of the converter allows to adjust the output power of the wave-
guide test port. Turning the screw clockwise reduces the output power while turning the
screw counter-clockwise increases the output power. Adjusting the screw to 0 mm
results in minimum power while maximum power is reached at about 2 mm. If you acci-
dentally unscrew the knob completely, simply screw it on again. If you readjust the
Output Power Adjusting Screw
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R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
8Quick Start Guide 1307.7039.62 ─ 10
screw after calibration, the power calibration is still valid but the system error correction
has to be repeated.
2.3 Rear Panel
The rear panel of the frequency converter provides the connectors and control ele-
ments described below:
●Standby Switch
●Power Supply Connector
●Fuse Holder
●RF Connectors – Input
●RF Connectors – Output
Fig. 2-3: Rear view of the frequency converter
2.3.1 Standby Switch
The standby toggle switch connects (ready state) or disconnects (standby state) the
internal modules of the frequency converter from the power supply.
A green light-emitting diode (LED) next to the switch indicates that the instrument is in
ready state. An orange LED further to the right indicates that the instrument is in
standby state. These LEDs are only lit when the converter is properly connected to the
power supply and the fuse of the instrument is intact.
Rear Panel
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R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
9Quick Start Guide 1307.7039.62 ─ 10
Fig. 2-4: Standby switch and LEDs
2.3.2 Power Supply Connector
To supply the frequency converter with power, connect the external DC power supply
to the "9 V / MAX. 1.1 A" DC input (labeled "9 V / MAX. 1.6 A" on R&S ZVA-Z500 con-
verters). For details see chapter 2.4.6, "Connecting the Converter to the DC Supply",
on page 15.
Always switch the instrument to standby state before removing the power supply.
Risk of instrument damage
The input voltage and current must not exceed the maximum values according to the
rear panel labeling or the data sheet.
Notice that the external DC power supply units of R&S ZVA-Z500 converters support
higher output powers. Always use the DC power supply delivered with your frequency
converter.
2.3.3 Fuse Holder
The power supply connector at the rear panel is protected by a fuse of type IEC60127
T1 L/H (IEC60127 T1.8 L/H on R&S ZVA-Z500 converters). For fuse replacement see
chapter 2.4.9, "Replacing Fuses", on page 16.
2.3.4 RF Connectors – Input
Two 3.5 mm input connectors:
●RF IN (RF source signal input)
●LO IN (local oscillator signal input)
For correct cabling please refer to chapter 2.4.5, "Connecting RF Cables",
on page 13.
Rear Panel
Preparing for Use
R&S® ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
10Quick Start Guide 1307.7039.62 ─ 10
Risk of instrument damage
The RF input power at the connectors RF IN and LO IN must not exceed the maximum
values quoted in the data sheet. The maximum values are below the maximum RF
source power of the network analyzer. The frequency converter mode ensures compat-
ible source powers.
Before you connect your converter to the network analyzer, always activate the fre-
quency converter mode using the Frequency Converter dialog (see chapter 3.3, "Acti-
vating the Frequency Converter Mode", on page 19) and select the proper converter
type and connecting diagram.
2.3.5 RF Connectors – Output
Two SMA connectors:
●MEAS OUT (measurement signal output)
●REF OUT (reference signal output)
For correct cabling please refer to chapter 2.4.5, "Connecting RF Cables",
on page 13.
2.4 Putting the Converter into Operation
This section describes the basic steps to be taken when setting up the frequency con-
verter for the first time.
Risk of instrument damage
Before turning on the converter, please make sure that the following conditions are ful-
filled:
●Converter covers are in place and all fasteners are tightened.
●Ventilation openings are unobstructed.
●The converter is dry and shows no condensation.
Non-observance may cause damage to the converter!
2.4.1 Unpacking the Unit and Checking the Shipment
When your receive the converter, please take the following steps:
1. Unpack the converter and the other contents of the wooden shipping box.
Putting the Converter into Operation
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