HP 85097A User manual

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About this Manual
We’ve added this manual to the Agilent website in an effort to help you support
your product. This manual is the best copy we could find; it may be incomplete
or contain dated information. If we find a more recent copy in the future, we will
add it to the Agilent website.
Support for Your Product
Agilent no longer sells or supports this product. Our service centers may be able
to perform calibration if no repair parts are needed, but no other support from
Agilent is available. You will find any other available product information on the
Agilent Test & Measurement website, www.tm.agilent.com.
HP References in this Manual
This manual may contain references to HP or Hewlett-Packard. Please note that
Hewlett-Packard's former test and measurement, semiconductor products and
chemical analysis businesses are now part of Agilent Technologies. We have
made no changes to this manual copy. In other documentation, to reduce
potential confusion, the only change to product numbers and names has been in
the company name prefix: where a product number/name was HP XXXX the
current name/number is now Agilent XXXX. For example, model number
HP8648A is now model number Agilent 8648A.

User’s Guide
HP 85097A Electronic Calibration System
HP Part Number: 85091-90007
Supersedes 85091-90001
Printed in USA
July 1999

ii
Notice
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, including,
but not limited to, the implied warranties of merchantability and fitness for a particular
purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this
material.
Hewlett-Packard assumes no responsibility for the use or reliability of its software on
equipment that is not furnished by Hewlett-Packard.
This document contains proprietary information which is protected by copyright. All rights
are reserved. No part of this document may be photocopied, reproduced, or translated to
another language without prior written consent of Hewlett-Packard Company.
Some products referred in this manual are manufactured under license. U.S. patents 5434
511, 5467 021, 5 552 714, 5 537 046, or 5 548 221 may apply.
Restricted Rights Legend
Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth
in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 for DOD agencies, and subparagraphs (c)(1) and (c)(2) of the
Commercial Computer Software Restricted Rights clause at FAR 52.227-19 for other
agencies.
© Copyright 1998, 1999 Hewlett-Packard Company

Contents
i
1. General Information
About This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
ECal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
ECal Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Vector Network Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
PC Interface Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
ECal Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
ECal PC Interface Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
IEEE-488 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
ECal Module Options and Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
HP 85097A PC Interface System Characteristics and Requirements. . . . . . . . . . . . . . . . . .1-12
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
Safety and Regulatory Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17
Instrument Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
Safety Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
Before Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
Compliance Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
2. Operating an ECal System
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Compatible Vector Network Analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Electrostatic Discharge (ESD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Protecting from ESD Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
ESD Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Setting Up an ECal System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Connecting and Disconnecting Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Installing and Using the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
PC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Installation and System Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Starting the ECal Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
ECal PC Graphical User Interface (GUI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Calibration Menus on VNAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
VNA Main Menu Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Calibrate Configure Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
ECal Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Module Selection Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Confidence Check Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Confidence Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Service Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18

ii
Contents
Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Calibration Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Changing the Calibration Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Setting Calibration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Ramp-Sweep With an HP 8510B/C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Calibrating Across Overlapping Frequency Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Performing ECal Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22
Required Procedure for All Calibrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Performing an S11 1-PORT Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Performing an S22 1-PORT Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Adapter Calibrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Adapter 2-Port Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
Performing Adapter 2-Port Calibrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Performing an OMIT ISOL ADP 2-PORT Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Calibration-Data Confidence Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Performing the Confidence Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
3. Software Programming Interface
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
OLE Interface File (ECalSPI.dll) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
DLL Interface File (StdSPI.dll). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
ECal SPI Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
ECal SPI Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
ECal Software Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Starting Up Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Checking Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Microsoft Visual C++. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Troubleshooting Example C++ File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
ecalspi.h file fix:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
ecalspi.cpp file fix :. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
HP-VEE and LabVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Standard SPI (StdSpi.dll) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
HP VEE Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
LabVIEW Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
ECal SPI Function Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
CMD_IDN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
CONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
DISP_MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
ECAL_ABORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
ECAL_CLEAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
ECAL_DELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
ECAL_FINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
ECAL_IAV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
SENS_CORR_COLL_ACQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
SENS_CORR_COLL_DONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
SENS_CORR_COLL_METH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
SENS_CORR_COLL_NEXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
SENS_CORR_COLL_PAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Contents
iii
SENS_CORR_COLL_PRIOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
SENS_CORR_COLL_RES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
SENS_CORR_COLL_SAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
SENS_CORR_COLL_VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
SPI_VERSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
SYST_ERR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
4. Recertifying ECal Kits
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Recertification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
What Recertification Provides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
How Often to Recertify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Where to Send a Kit for Recertification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
5. Troubleshooting
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Returning a Kit or Device to HP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Service and Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
A. HP 85060C Information
HP 85060C Control Unit-Based ECal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Environmental Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Characteristics and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Electrical and Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Line Voltage and Fuse Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

1-1
1General Information

1-2 Chapter1
General Information
The HP 85097A electronic calibration system (ECal) is a precision,
single-connection, one-port or two-port calibration technique, that uses
fully traceable electronic standards. ECal provides repeatable, accurate
measurements, while bringing convenience and simplicity to your
calibration routine. ECal replaces the traditional calibration technique
that uses mechanical standards.
The ECal system allows you to use one or two modules with your vector
network analyzer (VNA). ECal will use the results of the uncorrected
measurements to produce error coefficients. It provides these error
coefficients to the VNA for use by the VNA’s accuracy enhancement
algorithms. The VNA uses this data for a model of the measurement
system, to measure a device, and utilize vector mathematics to compute
actual device response by removing error contributions.

Chapter 1 1-3
General Information
About This Manual
About This Manual
This manual applies to the HP 85097A PC-based ECal system. For
operation information about the HP 85060C control unit-based system,
refer to Appendix A in this manual, or refer to your HP 85060C
manual.
NOTE This manual refers to the HP 8509X family as RF modules (lowband)
and the HP 8506X family as microwave modules (highband). For more
information about these modules, see the Electronic Calibration
Module Reference Guide (HP part number 85091-90008).

1-4 Chapter1
General Information
ECal System
ECal System
ECal systems consist of one or more ECal modules, and the
HP 85097A PC interface kit. You must supply your own PC equipped
with an HP-IB (IEEE-488) interface card.
The ECal modules calibrate VNA systems for measurements with
3.5 mm, type-N 50 Ω, 7 mm, type-N 75 Ω, 7-16 and type-F connectors.
Configurations
The ECal system has two configurations:
• A PC-based system
• A control unit-based system
Both configurations allow RF and microwave calibrations, depending on
which module is used.
ECal Modules
HP 8509X Modules
A single 8509X module is capable of calibrating a VNA over the
following frequency ranges:
RF Ecal modules are specified to operate from 300 kHz, with typical
performance down to 30 kHz.
There are options available for measurement calibration of both
insertable and non-insertable VNA setups. See Table 1-4 on page 1-10
for more information.
Connector Type Freq Range
3.5 mm 30 kHz–6 GHz
Type-N 50 Ω30 kHz–6 GHz
7 mm 30 kHz–6 GHz
Type-N 75 Ω30 kHz–3 GHz
7-16 30 kHz–7.5 GHz
Type-F 30 kHz–3 GHz

Chapter 1 1-5
General Information
ECal System
HP 8506X Modules
HP 8506X modules are available with type-N and 7 mm connectors
for VNAs with operating frequencies from 1 GHz to 18 GHz, or with
3.5 mm connectors for frequencies from 1 GHz to 26.5 GHz.
There are options available for measurement calibration of both
insertable and non-insertable VNA setups. See Table 1-4 on page 1-10
for more information.
Option 001 adds an HP 8509X module for calibrations below 1 GHz.
NOTE ECal modules cannot be used to calibrate for frequencies outside the
operating frequency range of the VNA being used.
Vector Network Analyzer
Hewlett-Packard VNAs measure the magnitude and phase
characteristics of networks, and of components such as filters,
amplifiers, attenuators and antennas. See Table 1-1 for model numbers
of VNAs and firmware revisions that are supported by the ECal
software.

1-6 Chapter1
General Information
ECal System
Table 1-1 VNA Models and Supported Firmware Revisions
Network Analyzer Firmware Revision
HP 8753C 4.13
HP 8753D 6.14 or higher
HP 8753E 7.12 or higher
HP 8510B 6.54
HP 8510C 7.00 or higher
HP 8719C 1.05
HP 8719D 6.14 or higher
HP 8720C 1.05
HP 8720D 6.14 or higher
HP 8722C 1.05
HP 8722D 6.14 or higher
HP 8753ES 7.60 or higher
HP 8753ET17.60 or higher
HP 8719ES 7.60 or higher
HP 8719ET17.60 or higher
HP 8720ES 7.60 or higher
HP 8720ET17.60 or higher
HP 8722ES 7.60 or higher
HP 8722ET17.60 or higher
1. ET model analyzers do not have the capability
to accommodate full 2-port calibrations.
Therefore, the only ECal calibration selection
valid for these analyzers is “S11 1-Port” which
is equivalent to selecting “Reflection 1-Port”
on an ET analyzer.

Chapter 1 1-7
General Information
ECal System
PC Interface Unit
The PC interface unit (shown in the center of Figure 1-1) functions as
the digital control for the ECal modules. It can control up to two
modules and contains circuitry that supplies power to the ECal module
control ports only when modules are connected. It automatically turns
the power off when you disconnect an ECal module.
NOTE If you have an HP 8506XA module, a jumper can be installed to make it
compatible with the PC interface unit. Contact the nearest HP sales or
service office for information about returning your module for this
modification. Sales and service offices are listed on page 5-5.
Figure 1-1 HP 85097A PC Interface Kit Contents (ECal module not
pictured)
Table 1-2 HP 85097A PC Interface Kit Replaceable Parts
Description Quantity HP Part Number
PC Interface Unit 1 85097-60002
PC Interface Software 1 (2 disk set) 85097-10001
Electronic Calibration System User’s Guide 1 85091-90007
Power Supply 1 0950-3331
Shielded DB25 Cable 3 8120-8710

1-8 Chapter1
General Information
ECal System
ECal Power Supply Unit
The ECal power supply unit is used to provide a 24 VDC supply to the
PC interface unit. It also allows for the supply of power to the ECal
modules.
WARNING To prevent electrical shock, disconnect from mains before
cleaning. Use a dry cloth or one slightly dampened with water
to clean the external case parts. Do not attempt to clean
internally.
CAUTION Always use the three-prong ac power cord supplied with this product.
Failure to insure adequate earth grounding by not using this cord may
cause product damage.
WARNING The detachable power cord is the instrument disconnecting
device. It disconnects the mains circuits from the mains supply
before other parts of the instrument.
ECal PC Interface Software
ECal software offers two interfaces that use Windows 95®1,
Windows 98®and Windows NT 4.0®as compatible PC operating
systems.
• A graphical user interface (GUI) and VNA softkeys for conducting
calibrations.
• The software programming interface (SPI) for programming and
controlling ECal processes.
1. Windows is a U.S. registered trademark of Microsoft Corporation.

Chapter 1 1-9
General Information
ECal System
Listed below are the file names and versions of the ECal software used
in the HP 85097A ECal system.
IEEE-488 Interface
The customer-supplied IEEE-488 interface card allows the PC software
to control the VNA during the calibration process. Compatible
interfaces include:
• HP 82341C/D (recommended interface)
• HP 82340A/B
• National Instruments AT-GPIB/TNT
• National Instruments AT-GPIB/TNT (Plug and Play)
• National Instruments PCI-GPIB
Table 1-3 Software
Software Version
Ecal.exe 01.008
EcalSPI.dll 01.002
ECal.dll 01.08

1-10 Chapter1
General Information
ECal Module Options and Operating Characteristics
ECal Module Options and Operating
Characteristics
Table 1-4 ECal Modules and Options Available
Module Model
Number Connector
Type 1
1. For ECal modules with sexed connectors, the standard modules have one female connector and
one male connector.
Frequency Range Options Available
HP 85091A 7 mm 30 kHz to 6 GHz2
2. RF ECal modules are specified to operate from 300 kHz, with typical performance down to
30 kHz.
1BN, 1BP, 910, UK6
HP 85092A Type-N (50 Ω)30 kHz to 6 GHz200M, 00F, 00A, 1BN, 1BP, 910, UK6
HP 85093A 3.5 mm 30 kHz to 6 GHz200M, 00F, 00A, 1BN, 1BP, 910, UK6
HP 85096A Type-N (75 Ω)30 kHz to 3 GHz200M, 00F, 00A, 1BN, 1BP, 0B1, UK6
HP 85098A 7-16 30 kHz to 7.5 GHz200M, 00F, 00A, 1BN, 1BP, 0B1, UK6
HP 85099A Type-F 30 kHz to 3 GHz200M, 00F, 00A, 1BN, 1BP, 0B1, UK6
HP 85060B 7 mm 1 to 18 GHz 001, 1BN, 1BP, 910, UK6
HP 85062B 3.5 mm 1 to 26.5 GHz 001, 00M, 00F, 00A, 01F, 01M, 1BN, 1BP, 910, UK6
HP 85064B Type-N (50 Ω) 1 to 18 GHz 001, 00M, 00F, 00A, 01F, 01M, 1BN, 1BP, 910, UK6

Chapter 1 1-11
General Information
ECal Module Options and Operating Characteristics
Table 1-5 ECal Module Option Descriptions
Option Description
001 Adds a 30 kHz to 6 GHz RF ECal module1
00M ECal Module(s) with 2 male connectors
00F ECal Module(s) with 2 female connectors
00A Adds male-to-male and female-to-female adapters (also adds 5/16-inch, 90 N-cm (8 in-lb)
torque wrench to 3.5 mm kits)
01M2Adds a 30 kHz to 6 GHz RF ECal Module with 2 male connectors
01F2Adds a 30 kHz to 6 GHz RF ECal Module with 2 female connectors
1BN MIL-STD 45662A calibration certificate
1BP MIL-STD 45662A calibration certificate with measurement data
910 Additional set of ECal manuals
0B1 Additional set of ECal manuals
UK6 Commercial calibration certificate with measurement data
1. RF ECal modules are specified to operate from 300 kHz, with typical performance down to
30 kHz.
2. Only available on HP 85062B and HP 85064B.

1-12 Chapter1
General Information
HP 85097A PC Interface System Characteristics and Requirements
HP 85097A PC Interface System Characteristics
and Requirements
NOTE This product is designed for use in INSTALLATION CATEGORY II and
POLLUTION DEGREE 2, per IEC 1010 and 664 respectively.
Enclosure protection according to IEC 529, IP Code 2 0.
Environmental
CAUTION When installing the product in a cabinet, the convection in and out of
the product must not be restricted. The ambient temperature (outside
the cabinet) must be less than the maximum operating temperature of
the system by 4 ˚C for every 100 watts dissipated in the cabinet. If the
total power dissipated in the cabinet is greater than 800 watts, then
forced convection must be used.
CAUTION Install the instrument according to the enclosure protection provided.
This instrument does not protect against the ingress of water. This
instrument protects against finger access to hazardous parts within the
enclosure.
Table 1-6 Environmental Requirements (indoor use only)
Characteristics Limits
Altitude: up to 3000 meters (10,000 feet)
Temperature: 5 ˚C to 40 ˚C (41 ˚F to 104 ˚F)
Maximum Relative Humidity:
decreasing linearly to 80% for temperatures up to 31 ˚C (88 ˚F) 50% for temperatures to 40 ˚C (104 ˚F)

Chapter 1 1-13
General Information
HP 85097A PC Interface System Characteristics and Requirements
Electrical
CAUTION The power supply has auto-ranging line voltage input; be sure the
supply voltage is within the specified range.
Table 1-7 Electrical and Mechanical Characteristics
Characteristics Limits
Power Requirements:
Line Voltage
Line Frequency 100 to 240 Vac 50 to 60 Hz
Power Output: 24 Vdc
1 A
Power Dissipation: 192 VA Maximum
Safety: IEC 950
Weights:
Net Weight
Shipping Weight 0.7 kg (1.5 lbs) 3 kg (6.5 lbs)
Dimensions:
Height
Width
Length
41 mm (1.6 in)
158 mm (6.2 in)
97 mm (3.8 in)