Rosenberg 02CK020-150 User manual

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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02CK020-150 (LRL Version)

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
Page
2 / 20
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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
Spare parts 5.2
Where to send a Kit for Re-Calibration / Repair 5.3
Extent of Rosenberger Re-Calibration Services 5.4
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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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 LRL Calibration Kit does not contain gauges. So all gauge related chapters are only applicable if
additional gauges are available, e.g. Rosenberger 02GK0KS-010 or comparable ones.
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 two-port LRL and TRL calibrations with best
performance from 1 GHz up to 40 GHz for measurements of components with RPC-2.92
connectors.
Components with RPC-3.50 connectors and other 2.92 mm, 3.5 mm and SMA connectors are
mechanically compatible and can also be measured but with reduced accuracy.
The usable frequency range can be extended down to DC if additional Loads are available.
1.2 Warnings
The Short standards and the Air Lines of this calibration kit are mechanically sensitive devices.
High accelerations e.g. when falling down will damage them.
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.
The Air Lines in this calibration kit are unbeaded, so connections (with them) have to be made very
carefully.
Tighten the connector coupling nuts to the recommended torque with the torque wrench. Do not
overtorque!
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.
Further limitations are given in the specific data sheets.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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1.3 Kit Contents
Table 1-1 Parts of the 02CK020-150 Calibration Kit
Device Part number Remarks Quantity
15 mm Air line
plug/jack
02S101-K015 L1 1
18.3 mm Air line
plug/jack
02S101-K018 L2 1
40 mm Air line
plug/jack
02S101-K040 L3 1
Short circuit plug 02S12S-001D3 Reflect standard 1
Short circuit jack 02K12S-001D3 Reflect standard 1
Combi wrench 03W008-000 5 mm, 6 mm, 7 mm, 8 mm, 9 mm 1
Torque wrench 03W021-000 8 mm wrench size / 0.9 Nm torque 1
1.4 Kit Documentation
•USB-Stick
Standard Definitions as data files for Vector Network Anaylzer Families PNA
(Keysight/Agilent) and ZVA (Rohde&Schwarz). Calibration Certificate as PDF-file.
•Standard Definitions Cards
Printed Standard Definitions that can be used on almost all Vector Network Analyzers.
•Kit Info Card
Handling precautions and information for installing Standard Definitions on a Vector Network
Analyzer.
•Calibration Certificate
See chapter Calibration Certificate.
•User Manual
(This document)
1.5 Calibration Certificate
Each calibration kit comes with a calibration certificate. Measurement results and uncertainties for
all calibration standards and the Torque Wrench are included.
Standard scope of delivery is the Factory Calibration. An Accredited Calibration is not available.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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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 Short calibration standards are less sensitive to temperature changes, whereas the Air Lines
are more sensitive due to their length. 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 calibration standards and the torque
wrench in the specific data sheets.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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3. Standard Definitions
3.1 Standard Definitions
Standard definitions provide the data needed to mathematically describe the electrical
characteristics of each calibration standard.
Model based standard definitions are the traditional format 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 measurements. All necessary
values are delivered with this calibration kit.
All standard definitions are delivered on Standard Definition Cards in the calibration kit and in
printed form in the calibration certificate.
The Short devices are stated in two functions:
•Reflect calibration standards: LRL, TRL and TRM calibrations need the same reflection
value for both ports. Therefore a gender independent model is used with a short inductance
(L0 to L3) of 0 H.
•Short calibration standards: OSL (OSM) and OSLT (TOSM) calibrations which can only be
carried out with additional calibration standards need well modelled calibration standards.
Therefore the short inductances (L0 to L3) for both genders are optimized individually from
the measured phase values to get the best model.
The Air Line devices are stated in two functions:
•Line calibration standards: with LRL and TRL calibrations Lines can only be used in a
limited frequency range.
•Air Lines: they can be used in their full frequency range as well matched, low loss
transmission lines as well as for verification purposes. Even below the specified lower
frequency limit they can be used with degraded performance.
Standard definitions as VNA files for a LRL calibration (Line and Reflect) in the frequency range
from 1 GHz to 40 GHz are included 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).
NOTE: The calibration certificate states dimensional measurements (lengths and diameter)
for the Air Lines. Please do not mix up the dimensional length of the outer
conductor with the electrical length that is needed as standard definition for the
VNA.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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3.2 Installation of Standard Definitions
The standard procedure to install Standard Definitions is to import them from the USB stick 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, the standard definitions have to be
installed manually with the provided information from the Standard Definitions Cards.
•USB-stick
The Kit Info Card gives a brief description for the VNAs described above.
For all others please consult the VNA operating manual.
•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.
•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 02CK001-150, 02CK020-150 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:
02CK001-150 (BH003)_mb_2020-05-30.calkit

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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
One-port calibrations are not available.
Two-port calibrations
LRL Line-Reflect-Line
LRL is the preferred calibration technique for this calibration kit. With the three lines included
the widest frequency range can be covered. A female-male or male-female configuration of
the test ports is needed.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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TRL Thru-Reflect-Line
The TRL calibration is a special form of the LRL calibration. One line is replaced by a direct
thru connection. This simplifies the handling a little bit but limits the upper frequency limit to
about 8.9 GHz. A female-male or male-female configuration of the test ports 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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
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4.3 Other LRL/TRL frequency ranges
The above mentioned standard frequency range (1 GHz to 40 GHz) is a combination of two
frequency segments:
1 GHz to 5 GHz LRL-Calibration L1 and L3
5 GHz to 40 GHz LRL-Calibration L1 and L2
However, further line combinations are possible to perform LRL/TRL calibrations. Depending on
your VNA model they can be concatenated to several frequency segments to allow a wider
frequency range. Please consult your VNA operating manual.
TRL Calibration
Thru
Line
Min. frequency
Max.
frequency
T
L1 (
15.0
mm)
1
.
1
GHz
8.9
GHz
T L2 (18.3 mm) 0.9 GHz 7.3 GHz
T
L3
(
40
.0 mm)
0.
4
GHz
3.
3
GHz
LRL Calibration
Thru
Line
Min. frequency
Max. frequency
L1 (15.0 mm)
L2 (18.3 mm)
5.0
GHz
40.0
GHz
L1 (15.0 mm)
L3 (40.0 mm)
0.7
GHz
5.
3
GHz
L2 (18.3 mm) L3 (40.0 mm) 0.8 GHz 6.1 GHz
‘T’ is the direct connection of the male/female test ports.
‘Thru’ and ‘Line’ are typical names in VNA for the two standards needed.
The mentioned frequency ranges are calculated on the basis of a phase range from about 20° to
160°.
In the frequency range below about 1 GHz the impedance of an Air Line changes significantly to
lower frequencies (Skin Effect). So it shouldn’t be used as an impedance standard any more but it
is still a quite well matched, low loss device.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
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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 Spare parts
Each part of this kit can be ordered separately as spare part with reference to the part number
shown in Table 1-1 and the quantity desired. Telephone or send your order to your local
Rosenberger sales office.
5.3 Where to send a Kit for Re-Calibration / Repair
In case of re-calibration or repair contact your local Rosenberger sales office.
5.4 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
•Dimensional measurement of center and outer conductor diameter
•Dimensional measurement of center and outer conductor length
•Electrical measurement of both Short calibration standards
•Measurement of torque wrench torque
•Issuing of calibration certificates including measurement values and uncertainties
•Individual optimizing of short inductance coefficients L0 to L3 for both 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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
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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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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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:
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.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
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Inner conductor recession
This will result in poor reflection and possibly unreliable contact.
Air Lines
The unbeaded Air Lines of this calibration kit can’t be directly gauged.
By design the center conductors are slightly shorter or maximum equal in length compared to
the corresponding outer conductors. Actual values can be found in the calibration certificate.
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.
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.
The unbeaded Air Lines of this calibration kit cannot be gauged with such a gauge.
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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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 03GK0KS-010

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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 concentricity 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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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7. Connections
Good connections require a skilled operator, especially when working with unbeaded Air Lines.
The most common cause of measurement error is bad connections. The following procedures
illustrate how to make good connections in general and how Air Lines should be connected.
Making a Connection
The calibration kit comes with a so-called combi-wrench and a torque wrench which are useful
tools to make connections. The wrench is made of plastic and helps you to hold the device body
and prevent it from rotating while tightening a connection with a torque wrench.
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
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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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.
Connecting Air Lines
This calibration kit comes with unbeaded Air Lines. This means that the outer conductors do not
hold the inner conductors resulting in the best Air Line performance but with a more delicate
handling when connecting Air Lines.
The following procedure describes how to connect an Air Line. In this example one side of the Air
Line will be connected to a test port adapter close to the VNA test port and the other side to a test
port cable. The test port adapter shows a female RPC-2.92 connector and the test port cable a
male RPC-2.92 connector. When handling the Air Line wearing gloves is recommended to avoid
pollution by sweat and it minimizes heat transfer.
•Carefully connect the inner conductor of the Air Line with the male side to the female test
port adapter. Insert it in a straight line with the inner conductor of the test port adapter. A
first resistance can be felt when the center pin of the center Air Line conductor widens the
female contacts fingers of the test port adapter. After this is overcome the center Air Line
conductor slides until the second resistence can be felt. Stop immediately, the center
conductor is now in its final position.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
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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•Carefully move the outer conductor of the Air Line with the male connector first over the
inner conductor without touching it. Tighten the coupling nut with your fingers.
•Hold the test port adapter with the appropriate wrench size of the combi-wrench. Use the
torque wrench to fasten the coupling nut, the working direction is indicated with an arrow.
Fasten the coupling slowly while applying the force perpendicular to the torque wrench axis
until the torque wrench “breaks”. Grap the torque wrench in the middle of the handle.
•Have a look to the female side of the connected Air Line. Often center and outer conductor
are not concentric. Do not connect any device now. Use a thin plastic device to center the
inner conductor.

User Manual
RPC-2.92 Calibration Kit
LRL-Version
02CK020-150
Rosenberger Hochfrequenztechnik GmbH & Co. KG
P.O.Box 1260 D-84526 Tittmoning Germany
www.rosenberger.com
Tel. : [phone]
Email : [e-mail]
Page
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•Connect the male connector of the test port cable to the female connector of the Air Line.
Tight the coupling nut with your fingers. Hold the outer conductor of the Air Line with the
appropriate wrench size of the combi-wrench. Use the torque wrench to fasten the
coupling nut as described before.
How to separate an Air Line Connection
•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.
•The inner conductor of the Air Line stays on that side with the higher connector forces. So
it may keep inside the outer conductor or is separated from it. Do not bend the inner
conductor so this can easily damage the female contact.
•Remove the outer conductor of the Air Line from the second side with the same care as
described before.
•Remove the inner conductor of the Air Line carefully by pulling it in line with its axis. Put it
back directly into the acrylic glass protection tube.
Draft Date Approved Date Rev. Engineering change number Name Date
Herbert Babinger 24/04/12 Markus Hantschel 21/12/20 a00 20-1058 Lars Ramtke 21/12/20
While the information has been carefully compiled to the best of our knowledge, nothing is intended as representation or warr
anty 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.