Keysight 85052D Manual

User's and Service Guide
)
Keysight
85052D 3.5 mm
Economy
Calibration Kit
This is the User's and Service Guide, p/n 85052-90079 for the 85052D 3.5 mm Economy Calibration Kit.

Notices
© Keysight Technologies, Inc.
2014-2022
No part of this manual may be
reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior
agreement and written consent from
Keysight Technologies, Inc. as
governed by United States and
international copyright laws.
Trademark Acknowledgments
n/a
Manual Part Number
85052-90079
Edition
Edition 2, November 2022
Printed in USA/Malaysia
Published by:
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO
THE MAXIMUM EXTENT PERMITTED
BY APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED WITH
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT
LIMITED TO THE IMPLIED
WARRANTIES OF
MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
KEYSIGHT SHALL NOT BE LIABLE
FOR ERRORS OR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE
FURNISHING, USE, OR
PERFORMANCE OF THIS
DOCUMENT OR ANY INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
Technology Licenses
The hardware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance
with the terms of such license.
U.S. Government Rights
The Software is “commercial
computer software,” as defined by
Federal Acquisition Regulation
(“FAR”) 2.101. Pursuant to FAR
12.212 and 27.405-3 and
Department of Defense FAR
Supplement (“DFARS”) 227.7202, the
U.S. government acquires
commercial computer software
under the same terms by which the
software is customarily provided to
the public. Accordingly, Keysight
provides the Software to U.S.
government customers under its
standard commercial license, which
is embodied in its End User License
Agreement (EULA), a copy of which
can be found at
http://www.keysight.com/find/sweu
la. The license set forth in the EULA
represents the exclusive authority by
which the U.S. government may use,
modify, distribute, or disclose the
Software. The EULA and the license
set forth therein, does not require or
permit, among other things, that
Keysight: (1) Furnish technical
information related to commercial
computer software or commercial
computer software documentation
that is not customarily provided to
the public; or (2) Relinquish to, or
otherwise provide, the government
rights in excess of these rights
customarily provided to the public to
use, modify, reproduce, release,
perform, display, or disclose
commercial computer software or
commercial computer software
documentation. No additional
government requirements beyond
those set forth in the EULA shall
apply, except to the extent that those
terms, rights, or licenses are
explicitly required from all providers
of commercial computer software
pursuant to the FAR and the DFARS
and are set forth specifically in
writing elsewhere in the EULA.
Keysight shall be under no obligation
to update, revise or otherwise modify
the Software. With respect to any
technical data as defined by FAR
2.101, pursuant to FAR 12.211 and
27.404.2 and DFARS 227.7102, the
U.S. government acquires no greater
than Limited Rights as defined in FAR
27.401 or DFAR 227.7103-5 (c), as
applicable in any technical data.
Safety Notices
A CAUTION notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in damage to the product
or loss of important data. Do not
proceed beyond a CAUTION
notice until the indicated
conditions are fully understood
and met.
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or death.
Do not proceed beyond a
WARNING notice until the
indicated conditions are fully
understood and met.
A NOTE calls the user’s attention
to an important point or special
information in the text.

Contents
Keysight 85052D User’s and Service Guide Contents–1
1. General Information
Calibration Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Broadband Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Offset Opens and Shorts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Calibration Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Equipment Required but Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Incoming Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Recording the Device Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Calibration Kits Documented in This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Calibration Kit History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
85052D Kits with Serial Prefix 3027A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Precision Slotless Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Clarifying the Terminology of a Connector Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
When to Calibrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2. Specifications
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Temperature—What to Watch Out For. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Pin Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
3. Use, Maintenance, and Care of the Devices
Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Visual Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Look for Obvious Defects and Damage First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
What Causes Connector Wear?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Inspect the Mating Plane Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Inspect Female Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Cleaning Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Gaging Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Connector Gage Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
When to Gage Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Gaging Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Gaging 3.5 mm Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Contents–2 Keysight 85052D User’s and Service Guide
Contents
How to Make a Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Preliminary Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Final Connection Using a Torque Wrench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
How to Separate a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
4. Performance Verification
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
How Keysight Verifies the Devices in Your Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
How Often to Recertify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Where to Send a Kit for Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
5. Troubleshooting
Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Where to Look for More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Returning a Kit or Device to Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Contacting Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Printing Copies of the Documentation on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
6. Replaceable Parts
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
A:.Standard Definitions
Class Assignments and Standard Definitions Values are Available on the Web . . . . . . . . . .A-1

1-1
Keysight
3.5 mm Calibration Kit
User’s and Service Guide
1 General Information
Calibration Kit Overview
The Keysight 85052D 3.5 mm calibration kit is used to calibrate Keysight
network analyzers up to 26.5 GHz for measurements of components with
3.5-mm connectors.
Kit Contents
The 85052D calibration kit includes the following items:
— user’s and service guide
— offset opens and shorts, and broadband loads
— three 3.5 mm adapters
— 5/16 in, 90 N-cm (8 in-lb) torque wrench
— 7 mm open-end wrench
The adapters are primarily intended for use in measuring non-insertable
devices, but can also be used as a connector saver.
Refer to Chapter 6 for a complete list of kit contents and their associated part
numbers.
Broadband Loads
The broadband loads are metrology-grade terminations that have been
optimized for performance up to 26.5 GHz. The rugged internal structure
provides for highly repeatable connections. A distributed resistive element on
sapphire provides excellent stability and return loss.
Offset Opens and Shorts
The offset opens and shorts are built from parts that are machined to the
current state-of-the-art in precision machining.
The offset short’s inner conductors have a one-piece construction, common
with the shorting plane. The construction provides for extremely repeatable
connections.
The offset opens have inner conductors that are supported by a strong,
low-dielectric constant plastic to minimize compensation values.

1-2 Keysight 85052D User’s and Service Guide
General Information
Incoming Inspection
1-
Both the opens and shorts are constructed so that the pin depth can be
controlled very tightly, thereby minimizing phase errors. The lengths of the
offsets in the opens and shorts are designed so that the difference in phase of
their reflection coefficients is approximately 180 degrees at all frequencies.
Adapters
Like the other devices in the kit, the adapters are built to very tight tolerances
to provide good broadband performance and to ensure stable, repeatable
connections.
The adapters are designed so that their nominal electrical lengths are the
same, which allows them to be used in calibration procedures for
non-insertable devices.
Calibration Definitions
The calibration kit must be selected and the calibration definitions for the
devices in the kit installed in the network analyzer prior to performing a
calibration.
The calibration definitions can be:
— resident within the analyzer
— manually entered from the front panel
Class assignments and standard definitions may change as more accurate
model and calibration methods are developed. You can download the most
recent class assignments and standard definitions from Keysight’s Calibration
Kit Definitions Web page at
https://www.keysight.com/us/en/assets/9922-01521/technical-specificatio
ns/Calibration-Kit-Definitions.pdf.
Refer to your network analyzer user’s guide or embedded Help for instructions
on manually entering calibration definitions, selecting the calibration kit, and
performing a calibration.
Equipment Required but Not Supplied
Some items are required or recommended for successful operation of your kit,
but are not supplied with the kit. Refer to Table 6-2 on page 6-3 for a list of
these items and for ordering information.
Incoming Inspection
Refer to Chapter 6 to verify a complete shipment. Use Table 1-1 to record the
serial numbers of all serialized devices in your kit.

Keysight 85052D User’s and Service Guide 1-3
General Information
Recording the Device Serial Numbers
Check for damage. The foam-lined storage case provides protection during
shipping. If the case or any device appears damaged, or if the shipment is
incomplete, refer to “Contacting Keysight” on page 5-3. Keysight will arrange
for repair or replacement of incomplete or damaged shipments without waiting
for a settlement from the transportation company. See “Returning a Kit or
Device to Keysight” on page 5-2.
Recording the Device Serial Numbers
In addition to the kit serial number, the devices in the kit are individually
serialized (serial numbers are labeled onto the body of each device). Record
these serial numbers in
Table 1-1. Recording the serial numbers will prevent confusing the devices in
this kit with similar devices from other kits.
The adapters included in the kit are for measurement convenience only and are
not serialized.
Calibration Kits Documented in This Manual
This manual applies to any 8552B calibration kit with serial number prefix
3106A. If your calibration kit has a different serial number prefix, refer to the
next section for information on how this manual applies.
Calibration Kit History
This section describes calibration kits with serial number prefixes lower that
the ones listed on the title page.
Table 1-1 Serial Number Record for the 85052D
Device Serial Number
Calibration kit
Broadband load –m–
Broadband load –f–
Open –m–
Open –f–
Short –m–
Short –f–
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________

1-4 Keysight 85052D User’s and Service Guide
General Information
Precision Slotless Connectors
1-
85052D Kits with Serial Prefix 3027A
These calibration kits did not have a calibration constants disk to support the
Keysight 8510C network analyzer. The part numbers provided in this manual
are the recommended replacement parts for these kits. The devices in these
kits should meet the specifications published in this manual.
Precision Slotless Connectors
The female 3.5 mm connectors in this calibration kit are metrology-grade,
precision slotless connectors (PSC). A characteristic of metrology-grade
connectors is direct traceability to national measurement standards through
their well-defined mechanical dimensions.
Conventional female center conductors are slotted. When mated, the female
center conductor is flared by the male pin. Because physical dimensions
determine connector impedance, electrical characteristics of the female
connector (and connection pair) are dependent upon the mechanical
dimensions of the male pin. While connectors are used in pairs, their male and
female halves are always specified separately as part of a standard, instrument,
or device under test. Because of these facts, making precision measurements
with the conventional slotted connector is very difficult, and establishing a
direct traceability path to primary dimensional standards is nearly impossible.
The precision slotless connector was developed to eliminate these problems.
All PSCs are female. A PSC incorporates a center conductor with a solid
cylindrical shell that defines the outside diameter of the female center pin. Its
outside diameter and, therefore, the impedance in its region does not change.
The inner part provides an internal contact that flexes to accept the allowed
range of male pin diameters.
The calibration of a network analyzer having a conventional slotted female
connector on the test port remains valid only when the device under test and
all calibration standards have identical male pin diameters. For this reason PSC
test port adapters are supplied in most calibration kits.
Precision slotless connectors have the following characteristics:
— There is no loss of traceable calibration on test ports when the male pin
diameter of the connector on the device under test is different from the
male pin diameter of the calibration standard.
— The female PSC and its mating male connector can be measured and
specified separately as part of the device either is attached to.
— All female connectors can have a known, stable impedance based only on
the diameters of their inner and outer conductors.
— Female calibration standards can be fully specified. Their specifications and
traceability are unaffected by the diameter of the male mating pin.

Keysight 85052D User’s and Service Guide 1-5
General Information
Clarifying the Terminology of a Connector Interface
— A fully traceable performance verification is made using a precision 50 ohm
airline having a PSC.
— Measurement repeatability is enhanced due to non-changing connector
characteristics with various pin diameters.
With PSCs on test ports and standards, the percentage of accuracy achieved
when measuring at 50 dB return loss levels is comparable to using
conventional slotted connectors measuring devices having only 30 dB return
loss. This represents an accuracy improvement of about 10 times.
Clarifying the Terminology of a Connector Interface
In this document and in the prompts of the PNA calibration wizard, the gender
of cable connectors and adapters is referred to in terms of the center
conductor. For example, a connector or device designated as 1.85 mm –f– has
a 1.85 mm female center conductor.
8510-series, 872x, and 875x ONLY: In contrast, during a measurement
calibration, the network analyzer softkey menus label a 1.85 mm calibration
device with reference to the sex of the analyzer’s test port connector—not the
calibration device connector. For example, the label SHORT(F) refers to the
short that is to be connected to the female test port. This will be a male short
from the calibration kit.
A connector gage is referred to in terms of the connector that it measures. For
instance, a male connector gage has a female connector on the gage so that it
can measure male devices.
Preventive Maintenance
The best techniques for maintaining the integrity of the devices in the kit
include:
— routine visual inspection
—cleaning
—propergaging
— proper connection techniques
Table 1-2 Clarifying the Sex of Connectors: Examples
Terminology Meaning
Short –f– Female short (female center conductor)
Short (f) Male short (male center conductor) to be connected to female port

1-6 Keysight 85052D User’s and Service Guide
General Information
When to Calibrate
1-
All of these are described in Chapter 3. Failure to detect and remove dirt or
metallic particles on a mating plane surface can degrade repeatability and
accuracy and can damage any connector mated to it. Improper connections,
resulting from pin depth values being out of the observed limits (see Table 2-2
on page 2-3) or from bad connection techniques, can also damage these
devices.
When to Calibrate
A network analyzer calibration remains valid as long as the changes in the
systematic error are insignificant. This means that changes to the uncorrected
leakages (directivity and isolation), mismatches (source match and load
match), and frequency response of the system are small (<10%) relative to
accuracy specifications.
Change in the environment (especially temperature) between calibration and
measurement is the major cause in calibration accuracy degradation. The
major effect is a change in the physical length of external and internal cables.
Other important causes are dirty and damaged test port connectors and
calibration standards. If the connectors become dirty or damaged,
measurement repeatability and accuracy is affected. Fortunately, it is relatively
easy to evaluate the general validity of the calibration. To test repeatability,
remeasure one of the calibration standards. If you can not obtain repeatable
measurements from your calibration standards, maintenance needs to be
performed on the test port connectors, cables and calibration standards. Also,
maintain at least one sample of the device under test or some known device as
your reference device. A verification kit may be used for this purpose. After
calibration, measure the reference device and note its responses. Periodically
remeasure the device and note any changes in its corrected response which
can be attributed to the test system. With experience you will be able to see
changes in the reference responses that indicate a need to perform the
measurement calibration again.

2-1
Keysight
3.5 mm Calibration Kit
User’s and Service Guide
2 Specifications
Environmental Requirements
Temperature—What to Watch Out For
Changes in temperature can affect electrical characteristics. Therefore, the
operating temperature is a critical factor in performance. During a
measurement calibration, the temperature of the calibration devices must be
stable and within the range shown in
Table 2-1.
Table 2-1 Environmental Requirements
Parameter Limits
Temperature
Operatinga
a. The temperature range over which the calibration standards maintain conformance to their specifications.
+20 °C to +26 °C
Storage −40 °C to +75 °C
Error-corrected rangeb
b. The allowable network analyzer ambient temperature drift during measurement calibration and during
measurements when the network analyzer error correction is turned on. Also, the range over which the network
analyzer maintains its specified performance while correction is turned on.
± 1 °C of measurement calibration temperature
Relative humidity Type tested 0% to 95% at 40 °C, non-condensing
IMPORTANT!
Avoid unnecessary handling of the devices during calibration because
your fingers are a heat source.

2-2 Keysight 85052D User’s and Service Guide
Specifications
Mechanical Characteristics
2-
Mechanical Characteristics
Mechanical characteristics such as center conductor protrusion and pin depth
are not performance specifications. They are, however, important
supplemental characteristics related to electrical performance. Keysight
Technologies verifies the mechanical characteristics of the devices in the kit
with special gaging processes and electrical testing. This ensures that the
device connectors do not exhibit any center conductor protrusion or improper
pin depth when the kit leaves the factory.
“Gaging Connectors” on page 3-6 explains how to use gages to determine if
the kit devices have maintained their mechanical integrity. Refer to Table 2-2
for typical and observed pin depth limits.
Pin Depth
Pin depth is the distance the center conductor mating plane differs from being
flush with the outer conductor mating plane. See Figure 2-1. The pin depth of
a connector can be in one of two states: either protruding or recessed.
Protrusion is the condition in which the center conductor extends beyond the
outer conductor mating plane. This condition will indicate a positive value on
the connector gage.
Recession is the condition in which the center conductor is set back from the
outer conductor mating plane. This condition will indicate a negative value on
the connector gage.
Figure 2-1 Connector Pin Depth

Keysight 85052D User’s and Service Guide 2-3
Specifications
Mechanical Characteristics
The pin depth value of each calibration device in the kit is not specified, but is
an important mechanical parameter. The electrical performance of the device
depends, to some extent, on its pin depth. The electrical specifications for each
device in the kit take into account the effect of pin depth on the device’s
performance. Table 2-2 lists the typical pin depths and measurement
uncertainties, and provides observed pin depth limits for the devices in the kit.
If the pin depth of a device does not measure within the observed pin depth
limits, it may be an indication that the device fails to meet electrical
specifications. Refer to Figure 2-1 for a visual representation of proper pin
depth (slightly recessed).
Table 2-2 Pin Depth Limits
Device Typical Pin Depth Measurement UncertaintyaObserved Pin Depth Limitsb
Opens 0 to -0.0127 mm
0 to -0.00050 in
+0.0064 to -0.0064 mm
+0.00025 to -0.00025 in
+0.0064 to -0.0191 mm
+0.00025 to -0.00075 in
Shorts 0 to -0.0127 mm
0 to -0.00050 in
+0.0041 to -0.0041 mm
+0.00016 to -0.00016 in
+0.0041 to -0.0168 mm
+0.00016 to -0.00066 in
Fixed loads -0.0025 to -0.0254 mm
-0.0001 to -0.0010 in
+0.0041 to -0.0041 mm
+0.00016 to -0.00016 in
+0.0016 to -0.0295 mm
+0.00006 to -0.00116 in
Adapter -0.0025 to -0.0254 mm
-0.0001 to -0.0010 in
+0.0041 to -0.0041 mm
+0.00016 to -0.00016 in
+0.0016 to -0.0295 mm
+0.00006 to -0.00116 in
a. Approximately +2 sigma to −2 sigma of gage uncertainty based on studies done at the factory according to
recommended procedures.
b. Observed pin depth limits are the range of observation limits seen on the gage reading due to measurement
uncertainty. The depth could still be within specifications.

2-4 Keysight 85052D User’s and Service Guide
Specifications
Electrical Specifications
2-
Electrical Specifications
The electrical specifications in Table 2-3 apply to the devices in your
calibration kit when connected with a Keysight precision interface.
Certification
Keysight Technologies certifies that this product met its published
specifications at the time of shipment from the factory. Keysight further
certifies that its calibration measurements are traceable to the United States
National Institute of Standards and Technology (NIST) to the extent allowed by
the Institute's calibration facility, and to the calibration facilities of other
International Standards Organization members. See “How Keysight Verifies
the Devices in Your Kit” on page 4-1 for more information.
Table 2-3 Electrical Specifications for 85052D 3.5 mm Devices
Device Specification Frequency (GHz)
Broadband loads Return loss ≥ 46 dB (ρ ≤ 0.00501) dc to ≤2
(male and female) Return loss ≥ 44 dB (ρ ≤ 0.00631) > 2 to ≤3
Return loss ≥ 38 dB (ρ ≤ 0.01259) > 3 to ≤ 8
Return loss ≥ 36 dB (ρ ≤ 0.01585) > 8 to ≤ 20
Return loss ≥ 34 dB (ρ ≤ 0.01995) > 20 to ≤ 26.5
Offset opensa±0.65°deviation from nominal dc to ≤3
(male and female) ±1.20°deviation from nominal > 3 to ≤8
±2.00°deviation from nominal > 8 to ≤20
±2.00°deviation from nominal > 20 to ≤26.5
Offset shortsa±0.50°deviation from nominal dc to ≤3
(male and female) ±1.00°deviation from nominal > 3 to ≤8
±1.75°deviation from nominal > 8 to ≤20
±1.75°deviation from nominal > 20 to ≤26.5
AdaptersbReturn loss ≥ 30 dB (ρ ≤ 0.03162) dc to ≤8
Return loss ≥ 28 dB (ρ ≤ 0.03981) > 8 to ≤18
Return loss ≥ 26 dB (ρ ≤ 0.05012) > 18 to ≤26.5
a. The specifications for the opens and shorts are given as allowed deviation from the nominal model as
defined in the standard definitions.
b. The offset delay value is 94.75 psec.

3-1
Keysight
3.5 mm Calibration Kit
User’s and Service Guide
3 Use, Maintenance, and Care of the Devices
Electrostatic Discharge
Protection against electrostatic discharge (ESD) is essential while connecting,
inspecting, or cleaning connectors attached to a static-sensitive circuit (such
as those found in test sets).
Static electricity can build up on your body and can easily damage sensitive
internal circuit elements when discharged. Static discharges too small to be
felt can cause permanent damage. Devices such as calibration components
and devices under test (DUT), can also carry an electrostatic charge. To
prevent damage to the test set, components, and devices:
—always wear a grounded wrist strap having a 1 MΩresistor in series with it
when handling components and devices or when making connections to
the test set.
—always use a grounded, conductive table mat while making connections.
—always wear a heel strap when working in an area with a conductive floor. If
you are uncertain about the conductivity of your floor, wear a heel strap.
—always ground yourself before you clean, inspect, or make a connection to
a static-sensitive device or test port. You can, for example, grasp the
grounded outer shell of the test port or cable connector briefly.
—always ground the center conductor of a test cable before making a
connection to the analyzer test port or other static-sensitive device. This
can be done as follows:
1. Connect a short (from your calibration kit) to one end of the cable to
short the center conductor to the outer conductor.
2. While wearing a grounded wrist strap, grasp the outer shell of the
cable connector.
3. Connect the other end of the cable to the test port.
4. Remove the short from the cable.
Figure 3-2 shows a typical ESD protection setup using a grounded mat and
wrist strap. Refer to Table 6-2 on page 6-3 for information on ordering
supplies for ESD protection.

3-2 Keysight 85052D User’s and Service Guide
Use, Maintenance, and Care of the Devices
Electrostatic Discharge
3-
Figure 3-1 ESD Protection Setup

Keysight 85052D User’s and Service Guide 3-3
Use, Maintenance, and Care of the Devices
Visual Inspection
Visual Inspection
Visual inspection and, if necessary, cleaning should be done every time a
connection is made. Metal particles from the connector threads may fall into
the connector when it is disconnected. One connection made with a dirty or
damaged connector can damage both connectors beyond repair.
Magnification is helpful when inspecting connectors, but it is not required and
may actually be misleading. Defects and damage that cannot be seen without
magnification generally have no effect on electrical or mechanical
performance. Magnification is of great use in analyzing the nature and cause of
damage and in cleaning connectors, but it is not required for inspection.
Look for Obvious Defects and Damage First
Examine the connectors first for obvious defects and damage: badly worn
plating on the connector interface, deformed threads, or bent, broken, or
misaligned center conductors. Connector nuts should move smoothly and be
free of burrs, loose metal particles, and rough spots.
What Causes Connector Wear?
Connector wear is caused by connecting and disconnecting the devices. The
more use a connector gets, the faster it wears and degrades. The wear is
greatly accelerated when connectors are not kept clean, or are not connected
properly.
Connector wear eventually degrades performance of the device. Calibration
devices should have a long life if their use is on the order of a few times per
week. Replace devices with worn connectors.
The test port connectors on the network analyzer test set may have many
connections each day, and are, therefore, more subject to wear. It is
recommended that an adapter be used as a test port saver to minimize the
wear on the test set’s test port connectors.
Inspect the Mating Plane Surfaces
Flat contact between the connectors at all points on their mating plane
surfaces is required for a good connection. See Figure 2-1 on page 2-2. Look
especially for deep scratches or dents, and for dirt and metal particles on the
connector mating plane surfaces. Also look for signs of damage due to
excessive or uneven wear or misalignment.
Light burnishing of the mating plane surfaces is normal, and is evident as light
scratches or shallow circular marks distributed more or less uniformly over the
mating plane surface. Other small defects and cosmetic imperfections are also
normal. None of these affect electrical or mechanical performance.

3-4 Keysight 85052D User’s and Service Guide
Use, Maintenance, and Care of the Devices
Cleaning Connectors
3-
If a connector shows deep scratches or dents, particles clinging to the mating
plane surfaces, or uneven wear, clean and inspect it again. Devices with
damaged connectors should be discarded. Determine the cause of damage
before connecting a new, undamaged connector in the same configuration.
Inspect Female Connectors
Inspect the contact fingers in the female center conductor carefully. These can
be bent or broken, and damage to them is not always easy to see. A connector
with damaged contact fingers will not make good electrical contact and must
be replaced.
The female 3.5 mm connectors in this calibration kit are metrology-grade,
precision slotless connectors (PSC). Precision slotless connectors are used to
improve accuracy. With PSCs on test ports and standards, the accuracy
achieved when measuring at 50 dB return loss levels is comparable to using
conventional slotted connectors measuring devices having only 30 dB return
loss. This represents an accuracy improvement of about 10 times.
Conventional female center conductors are slotted and, when mated, are flared
by the male pin. Because physical dimensions determine connector
impedance, this change in physical dimension affects electrical performance,
making it very difficult to perform precision measurements with conventional
slotted connectors.
The precision slotless connector was developed to eliminate this problem. The
PSC has a center conductor with a solid cylindrical shell, the outside diameter
of which does not change when mated. Instead, this center conductor has an
internal contact that flexes to accept the male pin.
Cleaning Connectors
Clean connectors are essential for ensuring the integrity of RF and microwave
coaxial connections.
1. Use Compressed Air or Nitrogen
Use compressed air (or nitrogen) to loosen particles on the connector
mating plane surfaces. Clean air cannot damage a connector or leave
particles or residues behind.
This is particularly important when mating nonprecision to precision
devices.
Always use protective eyewear when using compressed air or
nitrogen.

Keysight 85052D User’s and Service Guide 3-5
Use, Maintenance, and Care of the Devices
Cleaning Connectors
You can use any source of clean, dry, low-pressure compressed air or
nitrogen that has an effective oil-vapor filter and liquid condensation trap
placed just before the outlet hose.
Ground the hose nozzle to prevent electrostatic discharge, and set the air
pressure to less than 414 kPa (60 psi) to control the velocity of the air
stream. High-velocity streams of compressed air can cause electrostatic
effects when directed into a connector. These electrostatic effects can
damage the device. Refer to “Electrostatic Discharge” earlier in this
chapter for additional information.
2. Clean the Connector Threads
Use a lint-free swab or cleaning cloth moistened with isopropyl alcohol to
remove any dirt or stubborn contaminants on a connector that cannot be
removed with compressed air or nitrogen. Refer to Table 6-2 on page 6-3
for a part number for cleaning swabs.
a. Apply a small amount of isopropyl alcohol to a lint-free cleaning
swab.
b. Clean the connector threads.
c. Let the alcohol evaporate, then blow the threads dry with a gentle
stream of clean, low-pressure compressed air or nitrogen. Always
completely dry a connector before you reassemble or use it.
3. Clean the Mating Plane Surfaces
a. Apply a small amount of isopropyl alcohol to a lint-free cleaning
swab.
b. Clean the center and outer conductor mating plane surfaces. Refer
to Figure 2-1 on page 2-2. When cleaning a female connector, avoid
snagging the swab on the center conductor contact fingers by using
short strokes.
Print Date: Keep isopropyl alcohol away from heat, sparks, and
flame. Store in a tightly closed container. It is extremely flammable.
In case of fire, use alcohol foam, dry chemical, or carbon dioxide;
water may be ineffective.
Print Date: Use isopropyl alcohol with adequate ventilation and
avoid contact with eyes, skin, and clothing. It causes skin irritation,
may cause eye damage, and is harmful if swallowed or inhaled. It
may be harmful if absorbed through the skin. Wash thoroughly after
handling.
Print Date: In case of spill, soak up with sand or earth. Flush spill
area with water.
Print Date: Dispose of isopropyl alcohol in accordance with all
applicable federal, state, and local environmental regulations.

3-6 Keysight 85052D User’s and Service Guide
Use, Maintenance, and Care of the Devices
Gaging Connectors
3-
c. Let the alcohol evaporate, then blow the connector dry with a gentle
stream of clean, low-pressure compressed air or nitrogen. Always
completely dry a connector before you reassemble or use it.
4. Inspect
Inspect the connector to make sure that no particles or residue remain.
Refer to “Visual Inspection” on page 3-3.
Gaging Connectors
The gages available from Keysight Technologies are intended for preventive
maintenance and troubleshooting purposes only. They are effective in
detecting excessive center conductor protrusion or recession, and conductor
damage on DUTs, test accessories, and the calibration kit devices. Do not use
the gages for precise pin depth measurements. See Table 6-2 on page 6-3 for
part number information.
Connector Gage Accuracy
The connector gages are only capable of performing coarse measurements.
They do not provide the degree of accuracy necessary to precisely measure the
pin depth of the kit devices. This is partially due to the repeatability
uncertainties that are associated with the measurement. Only the
factory—through special gaging processes and electrical testing— can
accurately verify the mechanical characteristics of the devices.
With proper technique, the gages are useful in detecting gross pin depth errors
on device connectors. To achieve maximum accuracy, random errors must be
reduced by taking the average of at least three measurements having different
gage orientations on the connector. Even the resultant average can be in error
by as much as ±0.0001 inch due to systematic (biasing) errors usually
resulting from worn gages and gage masters. The information in Table 2-2 on
page 2-3 assumes new gages and gage masters. Therefore, these systematic
errors were not included in the uncertainty analysis. As the gages undergo
more use, the systematic errors can become more significant in the accuracy of
the measurement.
The measurement uncertainties in Table 2-2 are primarily a function of the
assembly materials and design, and the unique interaction each device type
has with the gage. Therefore, these uncertainties can vary among the different
devices. For example, note the difference between the uncertainties of the
opens and shorts.