The WILTRON product(s) listed on the title page is (are) warranted against defects
in materials and workmanship for one year from the date of shipment.
WILTRON’s obligation covers repairing or replacing products which prove to be
defective during the warranty period. Buyers shall prepay transportation charges
for equipment returned to WILTRON for warranty repairs. Obligation is limited to
the original purchaser. WILTRON is not liable for consequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to WILTRON connectors that have failed
due to normal wear. Also, the warranty does not apply to defects resulting from
improper or inadequate maintenance by the Buyer, unauthorized modification or
misuse, or operation outside of the environmental specifications of the product. No
other warranty is expressed or implied, and the remedies provided herein are the
Buyer’s sole and exclusive remedies.
TRADEMARK ACKNOWL EDGEMENTS
V Connector and K Connector are registered trademarks of WILTRON Company.
GPC-7 is a registered trademark of Amphenol Corporation.
ANACAT is a registered trademark of EEsof, Inc.
Ink Jet and Think Jet are registered trademarks of Hewlett-Packard Co.
MS-DOS is a registered trademark of Microsoft Corporation.
NOTICE
WILTRON Company has prepared this manual for use by WILTRON Company
personnel and customers as a guide for the proper installation, operation and
maintenance of WILTRON Company equipment and computer programs. The drawings, specifications, and information contained herein are the property of WILTRON
Company, and any unauthorized use or disclosure of these drawings, specifications,
and information is prohibited; they shall not be reproduced, copied, or used in whole
or in part as the basis for manufacture or sale of the equipment or software
programs without the prior written consent of WILTRON Company.
This manual supports the WILTRON 2300-175 VNA Performance Veri-
fication Software. This software is used with the WILTRON
360X/372XX(A/B)/373XXA Vector Network Analyzer Systems. The
manual is organized into five chapters, as shown below.
General Information—provides an overview of the product.
•
Required Equipment—describes the test equipment, compo-
•
nents, hardware and software required to use this product.
Configuring the System—describes how the equipment is setup
•
and interconnected.
Running the Program—provides step-by-step instructions for
•
running the software.
In Case of Trouble—contains troubleshooting suggestions and
•
service information.
2Format of the Verification Software Disks
The Performance Verification Software is offered on an IBM compatible
1.44MB floppy disk.
3Capability
This software provides for automating measurements of the test components contained in a WILTRON 3666, 3667, 3668, 3669, or 3669B
Verification Kit.
It compares the measurements made on your
360X/372XX(A/B)/373XXA with the test component data provided in
each verification kit. This will aid in determining if the measurement
values obtained for the components are within the uncertainty limits
provided on the data disk packaged with each verification kit.
4Data Output
The test data and results are output in the form of four files to a
directory (C:\verify.vna\data) on your computers hard drive. The default file names, depending on the type of test being performed, are:
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20db.dat
40db.dat or 50db.dat
airline.dat
beatty.dat
NOTE:
The Performance Verification Software allows you to rename
these files to file names of your choice with default ".dat"
extension.
The tabular data in each file is given at discrete frequencies (1.0, 1.5,
or 3.0 GHz intervals—depending on the connector type and corresponding frequency range).
This section describes the equipment required to use the Performance
Verification Software.
6Computer (System Controller)
You need an IBM AT or compatible computer with 640K of RAM, a hard
disk configured as C: drive, a 3.5 inch floppy disk drive, and MS-DOS
3.3 (or higher) Operating System. This computer system is also used
as the system controller (see below for GPIB configuration.)
7GPIB Interface Card
Your computer must have a National Instruments IEEE-488 GPIB
Interface Adapter running driver version 2.1 or later. Ensure your
GPIB adapter is setup to default configuration as per National’s Instructions.
8Vector Network Analyzer
You need a WILTRON Model 360X/372XX(A/B)/373XXA Vector Network
Analyzer System, with the appropriate 3650, 3651, 3652, 3654, or
3654B Calibration Kit. A 360X system consists of a 360/360A/360B
VNA, a 360X-Series Test Set, and a Wiltron RF signal source.
The 360X/372XX(A/B)/373XXA Vector Network Analyzer will be referred to as VNA throughout this User’s Guide.
9Verification Kit
You need a WIL T RON 3666, 3667, 3668, 3669, or 3669B Verification Kit,
with data disk.
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10Printer
A printer is not required since the verification results and data will be
stored in four files on your computer’s hard disk drive (C:). These files
are saved in ASCII format for easy viewing and printing later if desired.
11Cables
You need a GPIB cable (Wiltron PN: 2100-2) and a two-foot RF Test
Port Cable (WILTRON PN: 3670A50-2, 3670K50-2, 3670V50-2,
3671A50-2, 3671K50-2, or 3671V50-2.)
This chapter describes how the various system elements are interconnected and the preliminary steps required for operation of the verification software.
13Hardware Interconnection
Connect the computer’s GPIB port to the VNA system using the GPIB
cable.
If the VNA is a 360X Network Analyzer, connect to the GPIB connector
labeled "360 GPIB" not the one labeled "System Bus."
If the VNA is a 372XX(A/B)/373XXA Network Analyzer, connect to the
GPIB connector labeled "IEEE 488.2 GPIB"not the one labeled "Dedi-
cated GPIB."
Connect the two-foot test port cable female end to the VNA Port 2.
Connect a female-female Phase Equal Insertable Adapter from the
Calibration Kit to the VNA Port 1. This does not apply to GPC-7
Calibration.
Figure 1. VNA Calibration and Measurement Setup Shown on a 360X VNA.
The installation is very simple with the vinstall program. Just put the
disk into a floppy drive, switch to that floppy drive and type vinstall
then press the enter key. The install program creates a directory called
verify.vna on your computers C: hard disk. Unlike the previous version, the Verification data disk can be in drive A or B. Ensure your
GPIB Adapter driver software is installed and tested as per National
Instruments Instructions.
NOTE:
The program can be run from a floppy disk as before,
however, you must have a directory on the C: hard drive
called "VERIFY.VNA\DATA".
The Performance Verification software runs in DOS text mode as described below.
16Starting the Program
With the equipment and software configured as described in Chapter
3 Section 14, turn on your computer and allow it to boot up to the DOS
prompt (C:\).
At the DOS prompt, Type :
vnaveri
Press: <ENTER> to invoke the performance verification program.
If you are going to run the Verification program from a floppy without
installing the software do the following :
after your computer boots up switch to the c drive
type mkdir verify.vna then press the enter key
type mkdir verify.vna\data then press the enter key
put the verification software disk in the floppy drive of your choice,
switch to that floppy drive an
Type :
vnaveri.exe
Press: <ENTER> to invoke the performance verification program.
The following message will be displayed on the computer screen:
WILTRON VNA VERIFICATION SOFTWARE
* * VERSION 1.04 * *
Press any key to continue.
At this point you can install the 3.5-inch data disk from the Verification
Kit into an available floppy drive and leave it in for the duration of the
Performance Verification.
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17Entering System Data and Calibration
The program now prompts you to enter or confirm the following data:
The VNA’s GPIB Address. The default Wiltron address is 6
•
The VNA’s Family (360X, 272XX[A or B], 373XXA)
•
If a 360X was selected you will be prompted to see if option 5 is
installed.
Start Frequency
•
Verification Kit Type
•
Stop Frequency
•
Verify the calibration kit coefficients have been loaded into the
•
VNA system.
To do this:
a. Insert the data disk from your WILTRON Calibration Kit (not the
verification kit) in the Network Analyzer’s disk drive.
b. Press the UTILITY MENU key on the front panel of the network
analyzer. (The Utility Menu is displayed on the network analyzer’s
display screen.)
c.Select CALIBRATION COMPONENT UTILITIES on the Utility
Menu and press <ENTER>. (The Calibration Component Utilities
Menu is displayed.)
d. Select INSTALL CALIBRATION COMPONENT INFORMATION
FROM DISK on the Calibration Component Utility Menu and
press <ENTER>. (Loading of the calibration kit coefficients from
the data disk begins.)
When the calibration kit coefficients have been loaded into the VNA
system, press any key on the computer keyboard to continue.
The program automatically sets up the proper frequency points for
your measurement based upon your responses to the earlier program
prompts. The program then automatically sets up the VNA so that you
can manually perform a full, 12-term calibration of the VNA system.
Using the two-foot test cable, set up the VNA system for calibration as
shown in Figure 1 (chapter 3 section 13).
Perform the full, 12-term calibration
•
Follow the prompts presented on the network analyzer’s display screen
and using the calibration components from your WILTRON Calibration
Kit.
Completion of the calibration is indicated by the lighting of the "FULL
12-TERM" CALIBRATION LED indicator on the 360X VNA and the
"APPLY CAL" LED indicator only on the 372XX(A/B)/373XXA VNA
front panel.
Press any key on the computer keyboard to continue the verification
program.
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Enter the Letter of the floppy drive the Verification Data Disk
•
is in
Next, the program prompts you to enter header information for the
data printouts, as follows:
VNA Serial Number (found on the Network Analyzer’s rear
•
panel).
Verification Kit Serial Number (found on the label on the side of
•
the verification kit wooden box).
Date (dd/MONTH/yy format). For example, if the date is Sep-
•
tember 1, 1993 then enter 01/SEPT/93.
Operator’s Name (up to 12 characters long-no spaces).
•
Enter the information as it is requested, pressing <ENTER> after each
entry.
18Measuring the Verification Devices
The program now presents the following menu on the computer screen:
(1) Measure 20 dB Attenuator
(2) Measure 40 or 50 dB Attenuator
(3) Measure Beatty Standard
(4) Measure Airline
(5) Restart Program
(6) Exit
Enter the number corresponding to the action you wish to take.
At this point you can begin measuring your verification kit devices. As
you select a verification device, the program prompts you to enter the
serial number of the device and to orient the device with the label
facing the user. Such orientation places port 1 on your left. It is at this
measurement point that the device is installed and measured on the
VNA.
The computer will now read data from the Verification Kit data disk
installed in the floppy drive you entered earlier. The verification software then automatically measures the device with the VNA and compares the measured data with the data stored on the Verification Kit
data disk. The results and measurement data is stored to data files on
the hard drive directory C:\VERIFY.VNA\DATA (see Section 1-4,
Data Output for file names.) The data on each file will contain an
asterisk (*) next to measurement data that is not within the specified
limits.
The above steps can be repeated for each of the three remaining devices
in the verification kit: the 40/50 dB Attenuator, the Beatty standard,
and the air line.
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NOTE:
The software will write the data to the file name you choose,
or the default file names in Section 1-4. If these files already
exist, they will be overwritten. Rename the files if you do
not wish them overwritten with the new data.
To exit the program, enter 6 at the main menu.
To view or print the data files, simply use any text editor. You can also
view the data files using the batch file called veridata.bat included on
your Performance Verification Software distribution disk.
If you have difficulty getting the program to run properly:
a. Check your GPIB interconnection.
b. Check cables and addresses, ensure that the GPIB-PC directory is
present on the boot drive and contains the GPIB.COM file, and that
the CONFIG.SYS file contains the line DEVICE=GPIB.COM.
c.If you are running the program from the hard disk it should be
installed with the install program. If you are running from a floppy
drive with or without installing the program create a directory on
the C: drive called VERIFY.VNA\DATA, change to the floppy drive
with the program disk, type VNAVERI.EXE and press the enter
key to start the program.
d. Ensure that after starting-up your Performance Verification Soft-
ware, the Verification Kit data disk is installed in drive A or B (the
floppy drive you told the program it was in) and that it contains
the following files:
If, after checking the above, you still have difficulty, contact WILTRON
Customer Service at (408) 778-2000 (fax: 408 778 0239) and ask for the
Vector Network Analyzer Support Engineer for further assistance.
20Difficulty Meeting System Specifications
If the verification software appears to run properly but the results are
not within the measurement limits associated with the verification kit:
a. Check both the verification kit and calibration kit devices for signs
of physical damage. Make sure that the connectors are clean.
b. Ensure that the serial number of the verification kit data disk
matches that shown on the verification kit.
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c.Repeat the process with a fresh calibration. Save the results of both
measurements as an aid in troubleshooting, if you require factory
assistance.
d. When installing calibration devices, and when measuring
verification devices, pay particular attention to proper connector
alignment and torque. Torque the connector using the torque
wrench supplied with the calibration kit.
If, after following the above steps, you still have difficulty, please
contact WILTRON Customer Service at (408) 778-2000 (fax: 408 778
0239) and ask for the Vector Network Analyzer Support Engineer for
further assistance.
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Appendix AA1
Appendix A
Example of Tabular Test Results
WILTRON VNA Verification SW Version 1.04
37200 Serial Number: 456001
Verification Kit Model Number: 3667
Verification Kit Serial Number: 89001
Date: 04/01/96
Device Serial Number: 050021
Operator: VnaTester