Rosenberger CK30R-MSO-T User manual

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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Picture shows an example of a Compact Calibration Kit

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
Page
2 / 17
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Contents
1. General Information
Calibration Kit Normal Use 1.1
Warnings 1.2
Kit Contents 1.3
Kit Documentation 1.4
Calibration Certificate 1.5
2. Specifications
Environmental Requirements 2.1
Electrical and mechanical Specifications 2.2
3. Standard Definitions
Standard Definitions 3.1
Installation of Standard Definitions 3.2
Standard Definitions file nomenclature 3.3
4. VNA Calibration
VNA Calibration 4.1
Calibration Check 4.2
5. Calibration Kit Service
Calibration interval 5.1
Where to send a Kit for Re-Calibration / Repair 5.2
Extent of Rosenberger Re-Calibration Services 5.3
6. Use, Maintenance and Care
Connector Care 6.1
Interface Dimensions and Gauging 6.2
Mechanical Specifications 6.3
Handling and Storage 6.4
7. Connections

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
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1. General Information
This User Manual is valid for all Rosenberger Compact Calibration Kits
1.1 Calibration Kit Normal Use
Calibration Kits are used as an accessory for Vector Network Analyzers (VNA) to perform vector-
error correction. Vector-error correction is the process of characterizing systematic errors of the
measurement system by measuring known calibration standards, and then mathematically
removing the effects of these errors from subsequent measurements. The measurement accuracy
of the calibrated VNA depends mainly on the quality of the calibration kit used. Contributing factors
are noise, linearity and temperature stability of the VNA, transmission and reflection stability of a
test port cable as well as operator experience and care.
VNAs usually offer several techniques for correcting systematic measurement errors. The
standards in this calibration kit allow you to perform one-port OSL (OSM) or two-port OSLT
(TOSM) calibrations.
1.2 Warnings
The calibration kit is a mechanically sensitive device. High accelerations e.g. when falling down will
damage it.
Connect the calibration standards only to test ports and other devices that have been cleaned and
checked for gauge, concentricity and integrity of the contact fingers. Detailed procedures are
described in Chapter 6 and 7.
Tighten the connector coupling nuts to the recommended torque with the torque wrench. Do not
over torque!
Consider the power applied to the Load calibration standards. Maximum power limits for the sum of
RF and DC power are defined in the specific data sheets.
It is good lab practice to use at least an ESD wrist strap when handling calibration standards or
DUTs on a VNA although the calibration standards themselves are not ESD sensitive. Please
consult your VNA manual.
Follow further limitations given in the specific data sheets.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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1.3 Kit Contents
For further Information see the Technical Data Sheet of the respective Compact Calibration Kit.
1.4 Kit Documentation
For further Information see the Technical Data Sheet of the respective Compact Calibration Kit.
1.5 Calibration Certificate
Standard scope of delivery is the Standard Definitions Card and a Certificate of Testing.
Some calibration kits come with a calibration certificate including. Measurement results and
uncertainties for all calibration standards.
Optional scope of delivery is the Accredited Calibration. In this case the calibration kit is calibrated
in the Rosenberger calibration laboratory, which is accredited by the German accreditation body
DAkkS (Deutsche Akkreditierungsstelle) according to DIN EN ISO / IEC 17025. Calibration
Certificates issued by an accredited calibration laboratory are accepted worldwide to demonstrate
that measurement results are traceable to national / international standards.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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2. Specifications
2.1 Environmental Requirements
The electrical performance of vector network analyzers and test port cables are sensitive to
ambient temperature drift. Most manufacturers limit the allowable temperature drift to ± 1 K during
measurement calibration and during measurements when the network analyser error correction is
turned on. For further information please refer to the VNA specifications.
NOTE: With your fingers being a heat source, avoid unnecessarily handling the devices
during calibration.
The calibration standards are less sensitive to temperature changes. The operating temperature
range for which the specifications are valid is defined in the specific data sheets.
2.2 Electrical and mechanical Specifications
Electrical and mechanical specifications are defined for all Compact Calibration Kit , gauges and
the torque wrench in the specific data sheets.
3. Standard Definitions
3.1 Standard Definitions
Standard definitions provide the data needed to mathematically describe the electrical
characteristics of each calibration standard. What kind of Standard Definitions the kit contains can
be found in the datasheet. Two types of standard definitions are available:
•Model based : These are the traditional standard definitions and can be used on both old and
modern VNAs. The values of these constants are theoretically derived from the physical
dimensions and material of each calibration standard, or from actual measured response. All
necessary values are printed on the Standard Definition Card
•Data based : These standard definitions allow more accurate measurements but can only be
used on modern VNAs. They consist of a set of complex measurement values for each
calibration standard in a narrow frequency step size. A file containing these values for all Open,
Short and Load calibration standards is delivered on an USB stick.
These standard definitions are used in the calibration of the VNA to determine the systematic
errors of the measurement system. Please always use the most recent source of information
(Standard Definitions Cards or VNA specific files).

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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3.2 Installation of Standard Definitions
The standard definitions have to be installed manually with the provided information from the
Standard Definitions Cards.
If the USB stick is included the Standard Definitions can import from there onto your VNA. As
standard delivery data files for Vector Network Anaylzer Families PNA (Keysight/Agilent) and ZVA
(Rohde&Schwarz) are included. Data files for other VNA families are available on request. If the
specific data file is not available,
•Manual installation
The manual installation is a more complex process. Please consult the VNA operating manual.
Some network analyzers allow a step by step input of the model based standard definitions
during the VNA calibration without previously loading them.
•USB-stick
The Kit Info Card gives a brief description for the VNAs described above.
For all others please consult the VNA operating manual.
•Updating
After a re-calibration the standard definitions are optimized on the basis of the actual
measurements.
Data files have to be imported like described before.
For a manual update only the values that have changed have to be modified.
3.3 Standard Definitions file nomenclature
The file name includes the calibration kit type, the serial number, the type of standard definitions
and the date of calibration. The file extension defines the VNA types the file can be used on. For
further Information see the Application Note AN001.
KitType (SN)_StdDef_CalDate.Ext
•KitType xxxxxx-MSO, xxxxxx-MSOT or customized type
•(SN) Serial number (5 character) enclosed by brackets
•StdDef ‘mb’ stands for model based and ‘db’ for data based, refer to 3.1
•CalDate Date of kit calibration, these standard definition relate to
•Ext e.g. ‘ckt’ file can be used on Keysight/Agilent VNAs
PNA family and compatible ones
‘calkit’ file can be used on Rohde&Schwarz VNAs
ZVA, ZVB, ZVBT, ZNB families and compatible ones
Example file name:
05S30R-MSOTS3 (23D09)_mb_2022-05-30.calkit

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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4. VNA Calibration
4.1 VNA Calibration
A VNA is only as useful as the accuracy of the measurements it makes, and this requires the
instrument to be calibrated. The calibration process employs a technique called vector error
correction, in which error terms are characterized using known standards so that errors can be
removed from actual measurements. The process of removing these errors requires the errors and
measured quantities to be measured vectorially (thus the need for a vector network analyzer).
Main setting parameters:
It is good practice to start your measurement by selecting the main setting parameters.
•Sweep type (linear / logarithmic)
•Sweep range (start frequency / stop frequency)
•Number of points (frequency step size)
•Source power
•IF bandwidth (small IF bandwidth basically increases the dynamic range)
•Sweep time
Connect test port cables and adapters to your VNA as needed for your specific measurement task.
Calibration techniques
A very large number of calibration techniques have been developed to calibrate a VNA. The
following list describes calibration techniques you can apply with this calibration kit along with their
features and applicability for use in specific situations.
One-port calibration
OSL (OSM) Open-Short-Load (Open-Short-Match)
When only reflection measurements are needed, the fastest and easiest calibration
technique is OSL. It requires 3 connections of calibration standards on the reference plane.
Two-port calibrations
OSLT (TOSM) Open-Short-Load-Thru (Thru-Open-Short-Match)
OSLT is the most commonly used two-port calibration method but it shall be used only in male-
female test port configurations The Thru connections is then performed by a direct connection of
the test ports.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
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UOSL (SOLR) (7-term) Unknown-Open-Short-Load (Short-Open-Load- Reciprocal)
This is the recommended calibration method for male-male and female-female test port
configurations.
The UOSM technique is similar to the OSLT calibration but doesn’t need well-known adapters.
Even a low loss Device under Test (DUT) can be sufficient as Thru standard. The UOSM
technique is particularly well suited for calibration involving different connector types at the test
ports and is most effective when data based standards are available.
In cases when the two VNA test ports have different connector systems installed, e.g. RPC-
3.50 and RPC-2.40 UOSM can handle this situation. A second calibration kit is needed.
Calibration Procedure
The procedures to perform a VNA calibration are very different between the VNA models. Modern
VNA often guide you thru the settings and actions. For details please consult the manual of your
specific VNA.
4.2 Calibration Check
It is advisable to check the calibration after error correction has been performed, particularly when
test port cables and adapters have been used.
During the calibration
•Calibration standards can easily be mixed up
•Connections may not be tightened correctly
There might be defects
•VNA, e.g. mechanically overloaded test port
•Instable test port cables
•Mechanically overloaded load
•Bent or broken contact fingers
With a Verification Kit, reflection and transmission measurements can be checked in a wide
frequency range for DUTs with low and high reflections and low and medium insertion loss. Actual
measurement values can be compared to reference values delivered with the Verification Kit
standards. This should be done from time to time to identify defects.
Air Lines, Precision Adapters and Mismatch Standards can also be used as a faster method for
more frequent checks.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
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5. Calibration Kit Service
5.1 Calibration interval
Rosenberger suggests a calibration interval of 12 months. Depending on the frequency of use, the
wear and the actual requirements a different calibration interval might be suitable. This lies in the
responsibility of the user.
5.2 Where to send a Kit for Re-Calibration / Repair
In case of re-calibration or repair contact your local Rosenberger sales office.
5.3 Extent of Rosenberger Re-Calibration Services
Every calibration kit sent for re-calibration or repair the following services are performed
•Cleaning of connector interfaces
•Optical check of connector mating planes, contact pins and contact fingers
•Check of connector gauge for impermissible protrusion and significant recession
•Electrical measurement of all calibration standards
•Measurement of torque wrench torque
•Measurement of gauges
•Issuing of calibration certificates including measurement values and uncertainties
•Individual optimizing of capacitive coefficients C0 to C3 for all Open calibration standards and
short inductance coefficients L0 to L3 for all Short calibration standards for best fitted model
based standard definitions.
In case of any defect or abnormality a cost estimation will be issued before continuing repair work.
If a calibration standard has to be replaced or modified, the incoming status is additionally reported
in the calibration certificate. This service is excluded when this measurement may damage the
Rosenberger measurement setup.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
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6. Use, Maintenance and Care
6.1 Connector Care
It is of particular importance to note that mechanical damage can be inflicted on a connector while
making a connection or a disconnection.
6.1.1 Connector Cleaning
To ensure a long and reliable connector life, careful and regular inspection of connectors is
necessary and cleaning of connectors is essential to maintain good performance.
Connectors should be inspected initially for dents, raised edges, and scratches on the mating
surfaces. Connectors that have dents on the mating surfaces will usually also have raised edges
around them and will make less than perfect contact; further to this, raised edges on mating
interfaces will make dents in other connectors to which they are mated. Connectors should be
replaced unless the damage is very slight.
Awareness of the advantage of ensuring good connector repeatability and its effect on the overall
uncertainty of a measurement procedure should encourage careful inspection, interface gauging
and handling of coaxial connectors.
Prior to use, a visual examination should be made of a connector or adaptor, particularly for
concentricity of the centre contacts and for dirt on the mating planes. It is essential that the axial
position of the centre contact of all items offered for calibration should be gauged because the
adjoining surfaces of mated centre contacts must not touch. If the centre contacts do touch, there
could be damage to the connector or possibly to other parts of the device to which the connector is
fitted.
Small particles, usually of metal, are often found on the inside connector mating planes and on the
threads. They should be removed to prevent damage to the connector surfaces. The items
required for cleaning connectors and the procedure to be followed is described below.
6.1.2 Cleaning procedure
Items required:
•Low pressure compressed air (solvent free).
•Cotton swabs.
•Lint free cleaning cloth.
•Isopropanol.
•Illuminated magnifier or microscope (factor 5 to 10)
NOTE: Isopropanol that contains additives should not be used for cleaning connectors as
it may cause damage to plastic dielectric support beads in coaxial and microwave
connectors. It is important to take all necessary safety precautions when using
chemicals or solvents.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
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•Remove loose particles on the mating surfaces and threads etc. using low-pressure
compressed air.
•Clean surfaces using Isopropanol on cotton swabs or lint free cloth. Use only sufficient solvent
to clean the surface. When using swabs or lint free cloth, use the least possible pressure to
avoid damaging connector surfaces. Do not spray solvents directly on to the connector surfaces
or use contaminated solvents.
•Use the low-pressure compressed air once again to remove any remaining small particles and
to dry the surfaces of the connector to complete the cleaning process before using the
connector.
6.1.3 Cleaning connectors on static sensitive devices
Special care is required when cleaning connectors on test equipment containing electrostatic
sensitive devices. When cleaning such connectors always wear at least a grounded wrist strap and
observe correct procedures.
6.2 Interface Dimensions and Gauging
It is of the utmost importance that connectors do not damage the test equipment interfaces to
which they are connected. Poor performance of many coaxial devices and cable assemblies can
often be traced to poor construction and non-compliance with the mechanical specifications. The
mechanical gauging of connectors is essential to ensure correct fit and to achieve the best
performance. This means that all coaxial connectors fitted on all equipment, cables and
terminations etc. should be gauged on a regular basis in order to detect any out of tolerance
conditions that may impair the electrical performance.
6.2.1 Gauging connectors
A connector should be gauged before it is used for the very first time or if someone else has used
the device to which it is connected.
If the connector is to be used on another item of equipment, the connector on the equipment to be
tested should also be gauged.
Connectors should never be forced together when making a connection since forcing often
indicates incorrectness and incompatibility. There are some dimensions that are critical for the
mechanical integrity, non-destructive mating and electrical performance of the connector.
The mechanical gauging of coaxial connectors will detect and prevent the following problems:

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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Inner conductor protrusion
This may result in buckling of the socket contacts or damage to the internal structure of a
device due to the axial forces generated.
NOTE: At no time should the pin depth of the connector be protruding.
Inner conductor recession
This will result in poor reflection and possibly unreliable contact.
6.2.2 Gauges
The Rosenberger gauges are of screw-on type in plug and jack version. They can be used to
gauge calibration standards as well as test ports, test port cables, adapters and DUTs.
Rosenberger offers a wide range of different types of gauges kits.
Naming convention:
A “gauge plug” (male) is used to measure a DUT with plug (male) connector. The gauge itself has
a jack (female) connector and needs a gauge block with plug (male) connector. For a “gauge jack”
(female) all gender are vice versa.
Checking devices for protrusion or excessive recession only a single measurement is sufficient.
More precise measurements or checking devices very close to critical limits should be done in
different orientations averaging up to 4 single measurements.
When a gauge block is used to initially adjust the gauge a torque spanner should be used to
tighten up the connection to the correct torque.
6.2.3 Connector gauge measurement resolution
Because of connector gauge measurement resolution uncertainties (one small division on the dial)
and variations in measurement technique from user to user connector dimensions may be difficult
to measure. Dirt and contamination can cause differences of 0.005 mm and, in addition, the way
that the gauge is used can result in larger variations. When using a gauge system for mechanical
compliance testing of connectors carry out the following procedure each time:
•Carefully inspect the connector to be tested and clean it if necessary.
•Clean and inspect the gauge and the gauge block.
•Carefully zero the gauge with the gauge block in place.
•Remove the gauge block.
•Measure the connector using the gauge and note the reading.
•Repeat the process at least once or more times as necessary.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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6.2.4 Gauge blocks
Every connector gauge requires a gauge block that is used to zero the gauge before use.
Figure 6-1 shows two sets of gauges and gauge blocks for the 2.92 mm connector.
Figure 6-1 Connector gauges and gauge blocks for the 2.92 mm connector
NOTE: For
further Information see user manual of the gauge kit

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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6.3 Mechanical Specifications
Good electrical microwave connections need well-defined mechanical connector dimensions. Pin
depth and excentricity of the center conductor have a significant impact on the electrical
performance.
Pin depth is the distance the centre conductor mating plane differs from being flush with the outer
conductor mating plane (see Figure 7-2). The pin depth of a connector can be in one of two states:
either protruding or recessed.
Protrusion is the condition in which the centre conductor extends beyond the outer conductor
mating plane. This may result in buckling of the socket contacts or damage to the internal structure
of a device due to the axial forces generated.
NOTE: At no time should the pin depth of the connector be protruding.
Recession is the condition in which the centre conductor is set back from the outer conductor
mating plane. The amount of unwanted reflections is directly proportional to the pin depth.
Pin depth limits are defined for all calibration standards in the specific data sheets.
Figure 7-2 Connector Pin Depth
6.4 Handling and Storage
•Install the protective end caps and store the calibration devices in the foam-lined storage case
when not in use.
•Never store connectors loose in a box, or in a desk or bench drawer. This is the most common
cause of connector damage during storage.
•Keep connectors clean.
•Do not touch mating plane surfaces. Natural skin oils and microscopic particles of dirt are easily
transferred to a connector interface and are very difficult to remove.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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7. Connections
Good connections require a skilled operator. The most common cause of measurement error is
bad connections. The following procedures illustrate how to make good connections.
Making a Connection
A combi-wrench is a useful tool to make connections. Rosenberger offers a wide range of different
types of combi-wrench. This wrench is made of plastic and helps you to hold the device body and
prevent it from rotating while making a connection.
Preliminary Connection
1. Ground yourself and all devices. Always wear a grounded wrist strap and work on a
grounded, conductive table mat.
2. Visually inspect the connectors.
3. If necessary, clean the connectors. Refer to 4.1 Connector Care.
4. Use a connector gage to verify that all centre conductors are within the observed pin depth
values in Table 2-2. Refer to 4.2 Interface Dimensions and Gaging.
5. Carefully align the connectors. The male connector centre pin must slip concentrically into
the contact finger of the female connector.
6. Push the connectors straight together and tighten the connector nut finger tight.
CAUTION:Do not turn the device body. Only turn the connector nut. Damage to the centre
conductor can occur if the device body is twisted.
Do not twist or screw the connectors together. As the centre conductors mate, there is
usually a slight resistance.
7. The preliminary connection is tight enough when the mating plane surfaces make uniform,
light contact. Do not overtighten this connection. A connection in which the outer
conductors make gentle contact at all points on both mating surfaces is sufficient. Very
light finger pressure is enough to accomplish this.
8. Make sure the connectors are properly supported. Relieve any side pressure on the
connection from long or heavy devices or cables.
9. Final Connection Using a Torque Wrench
10. Use a torque wrench to make a final connection. Table 4-2 provides information about the
torque wrench recommended for use with the calibration kit. A torque wrench is included in
the calibration kit.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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How to Separate a Connection
To avoid lateral (bending) force on the connector mating plane surfaces, always support the
devices and connections.
CAUTION: Do not turn the device body. Only turn the connector nut. Damage to the centre
conductor can occur if the device body is twisted. When disconnecting a sliding load, leave the
centre conductor pullback handle in the locked position.
•Use the combi-wrench to prevent the device body from turning.
•Use torque wrench to loosen the connecting nut.
•Complete the separation by hand, turning only the connecting nut.
•Pull the connectors straight apart without twisting, rocking, or bending either of the connectors.
Special Feature for a better handling
For the series 3.50mm, 2.92mm, 2.40mm, 1.85mm and 1.35mm it is possible to rotate the Thru of
the Compact Cal Kit up to 90°. Making a connection during the calibration with a Thru can be
difficult under limited space conditions. For such cases it can be helpful to rotate the Thru and
facilitates working with the wrench.

User Manual
Compact Calibration Kit
CK30R-MSO-T
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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Draft Date Approved Date Rev. Engineering change number Name Date
Herbert Babinger 24/04/12 Markus Hantschel 26/02/23 a00 20-1058 Lars Ramtke 26/02/23
While the information has been carefully compiled to the best of our knowledge, nothing is intended as
representation or warranty on
our part and no statement herein shall be construed as recommendation to infringe existing patents. In the effort to improve
our
products, we reserve the right to make changes judged to be necessary.