HP 85108A User guide

System Manual
HP 85108A Pulsed-RF
Network Analyzer System
ABCDE
HP Part No. 85108{90023
Printed in USA March 1995

Notice
The information contained in this document is sub ject to change without notice.
Hewlett-Packard makes no warrantyof any kind with regard to this material, including,
but not limited to, the implied warranties of merchantability and tness for a particular
purpose. Hewlett-Packard shall not b e liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.
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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.
c
 Copyright 1991 Hewlett-Packard Company. All Rights Reserved. Reproduction,
adaptation, or translation without prior written p ermission is prohibited, except as allo wed
under the copyrightlaws.
Santa Rosa Systems Division, 1400 Fountaingrove Pkwy,Santa Rosa, CA 95403-1799
This manual applies directly to all HP 8510Cs, or HP 8510Bs that have been upgraded to HP
8510Cs, with op erating rmware reviwion 6.0 or higher.

CER
TIFICATION
Hew lett-PackardCompany certies that this product met its publishedspecications at the
time of shipment from the factory. Hew lett-Packard further certies that its calibration
me
asur
ements aretraceable to the United States National Institue of Standards and Technology
(NIST, formerly NBS), to the extent al lowed by the institute's calibration facility, and to the
calibration facilities of other International Standards Organization members.
W
ARRANTY
This Hewlett-P
ac
k
ard instrumen
tpro duct is warranted against defects in material and
workmanship for a perio d of one year from date of delivery. During the warranty perio d,
Hewlett-Packard Company will, at its option, either repair or replace pro ducts whichproveto
bedefectiv
e.
F
or w
arranty service or repair, this pro duct must b e returned to a service facility designated
byHP.Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to
return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes
for pro ducts returned to HP from another country.
HP w
arran
ts that its soft
w
are and rm
w
are designated by HP for use with an instrument
will execute its programming instructions when prop erly installed on that instrument. HP
does not warrant that the op eration of the instrument, or software, or rmware will b e
unin
terrupted or error free.
LIMIT
A
TIONS OF W
ARRANTY
The foregoing w
arranty shall not apply to defects resulting from improp er maintenance by
Buy
er, Buy
er-supplied soft
w
are or in
terfacing, unauthorized mo dication or misuse, op eration
outside of the environmental sp ecications for the pro duct, or improp er site preparation or
maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY
DISCLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND EXCLUSIVE
REMEDIES. HP SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT,
TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
Product maintenanc
eagr
eements and other customer assistanc
eagreements are available for
Hew lett-PackardProducts.
For any assistance, contact your nearest Hew lett-Packard Sales and Service Oce. Addresses
areprovidedat theback of this manual.
iii

Contents
1. System and Do cumentation Overview
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Ho
wto Use This Manual . . . . . . . . . . . . . . . . . . . . . . . 1-1
System and Do cumentation Overview . . . . . . . . . . . . . . . . 1-1
System Installation . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Specications and Performance Verication . . . . . . . . . . . . . . 1-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
System Service and Troublesho oting . . . . . . . . . . . . . . . . . 1-2
Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Appendix .. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Index .......... . . . . . . . . . . . . . . . . . . . . 1-2
System Ov
erview ...... . . . . . . . . . . . . . . . . . . . . 1-3
Systems Co
v
ered b
yThis Man
ual ....... . . . . . . . . . . . . . 1-4
HP 85108 Pulsed-RF System Options . . . . . . . . . . . . . . . . . 1-4
Option 001 ... . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Option 010 ......... . . . . . . . . . . . . . . . . . . . 1-4
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Upgrade Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
HP 8510C Net
w
ork Analyzer . . . . . . . . . . . . . . . . . . . . . 1-5
HP 8510B Network Analyzer . . . . . . . . . . . . . . . . . . . . . 1-5
2. System Installation
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
System Arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Receiving Chec
klist .... . . . . . . . . . . . . . . . . . . . . . 2-2
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . 2-3
Accuracy-Enhanced Measurement Requirements . . . . . . . . . . . . 2-4
Power Requiremen
ts . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
System Heating and Cooling . . . . . . . . . . . . . . . . . . . . . 2-4
System V
oltages . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . 2-6
Anti-Static Precautions . . . . . . . . . . . . . . . . . . . . . . . 2-6
Unpacking the System Cabinet . . . . . . . . . . . . . . . . . . . . . 2-6
System Conguration . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Benchtop Conguration . . . . . . . . . . . . . . . . . . . . . . . 2-11
System Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Installing a Computer . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Making Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
The HP-IB Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
The HP 8510 System Bus . . . . . . . . . . . . . . . . . . . . . . 2-12
Contents-1

Connecting a Plotter . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Accessory ac Power Outlet . . . . . . . . . . . . . . . . . . . . . . 2-13
The HP 85108 Installed In aDieren
tCabinet . . . . . . . . . . . . . 2-13
System Turn On . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Turn On System Power . . . . . . . . . . . . . . . . . . . . . . . 2-17
HP-IB Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Initial Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Firmw
are Revision ..... . . . . . . . . . . . . . . . . . . . . 2-18
3. Operation
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
HP 85110 S-Parameter Test Set Operation . . . . . . . . . . . . . . . 3-2
Con
trolling Multiple T
est Sets ... . . . . . . . . . . . . . . . . . . 3-3
Operational Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Operational Test Pro cedure . . . . . . . . . . . . . . . . . . . . . 3-5
Pulse Measuremen
ts Ov
erview .. . . . . . . . . . . . . . . . . . . . 3-12
Making Pulsed-RF Measurements . . . . . . . . . . . . . . . . . . . . 3-14
F
requency Domain (P
oin
t-in-Pulse) ........ . . . . . . . . . . 3-14
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Measuremen
t. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Pulse Prole Domain ...... . . . . . . . . . . . . . . . . . . 3-16
Calibration ............... . . . . . . . . . . . . . 3-16
Pulse Prole Domain . . . . . . . . . . . . . . . . . . . . . . 3-17
F
requency Domain Using Frequency List . . . . . . . . . . . . . . 3-17
Measuremen
t......... . . . . . . . . . . . . . . . . . . 3-19
Switching Between Frequency Domain and Pulse Prole Domain . . . . 3-22
Pulsed-RF Applications . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Pulsed-RF Timing Information .... . . . . . . . . . . . . . . . . 3-23
Network Analyzer Measurement Cycle . . . . . . . . . . . . . . . . 3-23
Measurement Cycle Time . . . . . . . . . . . . . . . . . . . . . . 3-24
Pulse Repetition Perio d and Duty Cycle Considerations . . . . . . . . 3-24
External Trigger and Stop Sweep Signals . . . . . . . . . . . . . . . 3-25
Using External T
riggering and Pulse Mo dulation . . . . . . . . . . . . 3-26
Connect the Pulse Generator . . . . . . . . . . . . . . . . . . . . 3-26
High Power Measurements . . . . . . . . . . . . . . . . . . . . . . 3-29
Connecting External Signal Conditioning . . . . . . . . . . . . . . 3-30
Example High P
ow
er Measurements . . . . . . . . . . . . . . . . . 3-30
Measure a 30 dB Amplier . . . . . . . . . . . . . . . . . . . . 3-31
Measure an Amplier with High Input Lev
els . . . . . . . . . . . . 3-31
Using the Port 1 and Port 2 Attenuators . . . . . . . . . . . . . . . 3-32
Controlling the A
ttenuators . . . . . . . . . . . . . . . . . . . 3-33
Measure User Parameters and Set Attenuators . . . . . . . . . . . 3-33
Changing Signal Path After Calibration . . . . . . . . . . . . . . . 3-33
Set the Attenuators . . . . . . . . . . . . . . . . . . . . . . . 3-34
Store Trace Memories . . . . . . . . . . . . . . . . . . . . . . 3-34
View the Normalized Parameters . . . . . . . . . . . . . . . . . 3-34
Selecting Appropriate Measurement Calibration . . . . . . . . . . . . 3-35
General Calibration and Measurement Sequence . . . . . . . . . . . 3-36
General Calibration and Measurement Sequence Using Display Math . . 3-36
Contents-2

4. Specications and Performance Verication
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Required Equipmen
t..... . . . . . . . . . . . . . . . . . . . . 4-3
Verifying Non-Standard Systems . . . . . . . . . . . . . . . . . . . 4-3
Recommended Performance Verication Cycle . . . . . . . . . . . . . . 4-4
Generating System Sp ecications . . . . . . . . . . . . . . . . . . . . 4-4
Performance Verication Pro cedure . . . . . . . . . . . . . . . . . . . 4-4
Connect the Computer and W
arm Up the System . . . . . . . . . . . . 4-4
Load BASIC and BIN Files . . . . . . . . . . . . . . . . . . . . . 4-4
Run the Specications and Performance Verication Software . . . . . . . 4-5
Measuremen
tCalibration ... . . . . . . . . . . . . . . . . . . . 4-7
Power Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Source 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Source 2.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Power Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Frequency Oset . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Measure the Verication Standards . . . . . . . . . . . . . . . . . . 4-10
General Characteristics .. . . . . . . . . . . . . . . . . . . . . . . 4-10
5. Adjustments
In
tro duction ...... . . . . . . . . . . . . . . . . . . . . . . . 5-1
Equipmen
tRequired ............. . . . . . . . . . . . . 5-1
A3/A4 Pulse Detector Adjustment . . . . . . . . . . . . . . . . . . . 5-2
6. System Service and Troubleshooting
In
tro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Getting Help ........ . . . . . . . . . . . . . . . . . . . . 6-1
Troublesho oting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Troublesho oting Strategy . . . . . . . . . . . . . . . . . . . . . . 6-1
Do cumentation Required . . . . . . . . . . . . . . . . . . . . . . . 6-2
1. Note the Symptoms of the Failure . . . . . . . . . . . . . . . . . 6-2
2. Check System Setup . . . . . . . . . . . . . . . . . . . . . . . 6-2
Pro cedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
HP 8360 Series Source Check Software Revision, Language, and HP-IB
Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
FrontPanel Keys Metho d . . . . . . . . . . . . . . . . . . . . . 6-3
Rear Panel SwitchMethod . . . . . . . . . . . . . . . . . . . . . 6-4
HP 8340/41 Source HP-IB Address Chec
k . . . . . . . . . . . . . . 6-4
Pro cedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
3. Use Error Messages and Internal Diagnostics . . . . . . . . . . . . . 6-5
Pro cedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Running Error Messages Specic to Pulsed-RF Systems . . . . . . . . 6-6
PULSE CAL F
AILURE ON TEST/REFERENCE CHANNEL(S) . . . 6-6
PULSE CAL FAILURE ON BOTH CHANNELS . . . . . . . . . . 6-6
UNABLE TO LOCK TO EXT 10 MHZ REF . . . . . . . . . . . . 6-7
4. Use Specic Pro cedures for Certain Symptomatic Failures . . . . . . . 6-7
Power loss, p ower holes, and frequency related problems . . . . . . . 6-7
Calibration and Verication problems . . . . . . . . . . . . . . . 6-7
Software/rmware problems . . . . . . . . . . . . . . . . . . . 6-7
Network Analyzer Startup Problems . . . . . . . . . . . . . . . . . . 6-8
Contents-3

Reloading the Operating System . . . . . . . . . . . . . . . . . . 6-8
Unratio ed Power Level Check . . . . . . . . . . . . . . . . . . . . . 6-9
Pro cedure ...... . . . . . . . . . . . . . . . . . . . . . . . 6-9
Setting Source 1 Power Level . . . . . . . . . . . . . . . . . . . . . 6-10
Signal Path Check . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Chec
king a1 and a2 Signal Paths . . . . . . . . . . . . . . . . . . 6-10
Checking b1 and b2 Signal Paths . . . . . . . . . . . . . . . . . . 6-11
Analyzing the Signal P
ath Chec
kResults . . . . . . . . . . . . . . 6-12
Power loss or power hole . . . . . . . . . . . . . . . . . . . . . 6-12
Symptom in Wide BW Only . . . . . . . . . . . . . . . . . . . 6-12
Symptom in Normal BW only . . . . . . . . . . . . . . . . . . 6-12
Pulsed-RF IF Signal Path Description . . . . . . . . . . . . . . . . 6-12
IF Mixer Boards (A9, A11, A13, A14) . . . . . . . . . . . . . . . 6-12
A2 Pulse IF Mux Board . . . . . . . . . . . . . . . . . . . . . 6-13
Pulse Detector Boards . . . . . . . . . . . . . . . . . . . . . . 6-13
A16 Remote Application / Pulse Track & Hold Board . . . . . . . . 6-13
HP 85108 IF/Detector Option 008 Pulsed-RF IF Path Troubleshooting
Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Pro cedure 1: Service Adapter Test . . . . . . . . . . . . . . . . . . 6-16
Equipmen
t......... . . . . . . . . . . . . . . . . . . . 6-16
Service Adapter Pro cedure . . . . . . . . . . . . . . . . . . . . . 6-16
Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Pro cedure 2: A2 Pulse IF Mux Test IF Path Check . . . . . . . . . . 6-16
Pro cedure 3: A2 Pulse IF Mux Reference IF P
ath Chec
k. ..... .. 6-17
Pro cedure 4: A3/A4 Pulse Detector IF Path Check . . . . . . . . . . 6-18
Pro cedure 5: A6 Clo ck 20 MHz Output Check . . . . . . . . . . . . 6-19
7. Replaceable Parts
In
tro duction .... . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
To Order Parts. . . . fast! . . . . . . . . . . . . . . . . . . . . . . . 7-1
A. Glossary of Pulsed-RF System Terms
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Pulse Repetition Perio d, PRP . . . . . . . . . . . . . . . . . . . . A-1
Pulse Repetition Frequency, PRF . . . . . . . . . . . . . . . . . . . A-1
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Rise/Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Trigger Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Pulse Prole Measurement Resolution Perio d . . . . . . . . . . . . . . A-2
B. Hardware and Instrument States
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
HP-IB Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Hardware States . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
InstrumentStates . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Examining Your Pulse Hardware and Instrument States . . . . . . . . . . B-3
Check HP-IB Addresses . . . . . . . . . . . . . . . . . . . . . . . B-3
Check Multiple Source Settings . . . . . . . . . . . . . . . . . . . . B-3
Contents-4

C. Loading the System Conguration Disk
Intro duction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Pro cedure ...... . . . . . . . . . . . . . . . . . . . . . . . C-1
Index
Contents-5

Figures
1-1. HP 85108 Pulsed-RF Network Analyzer System . . . . . . . . . . . . . 1-3
1-2. Typical Serial Number Label . . . . . . . . . . . . . . . . . . . . . 1-4
2-1. HP 85108 Pulsed-RF Network Analyzer System . . . . . . . . . . . . . 2-3
2-2. Unpacking the HP 85108 System Cabinet in Air Carrier Style Packaging (1 of
4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-2. Unpacking the HP 85108 System Cabinet in Air Carrier Style Packaging (2 of
4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-2. Unpac
king the HP 85108 System Cabinet in Air Carrier Style Packaging (3 of
4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2-2. Unpacking the HP 85108 System Cabinet in Air Carrier Style Packaging (4 of
4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-3. HP 85108 System Cabling Diagram (rackmounted system) . . . . . . . . 2-14
2-4. HP 85108 System Cabling Diagram (b enc
h
top conguration - without
amplier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2-5. HP 85108 System Cabling Diagram (b enchtop conguration - with amplier) 2-16
2-6. HP 85108 Initial Trace . . . . . . . . . . . . . . . . . . . . . . . . 2-18
3-1. Simplied Pulsed-RF Net
work Analyzer Blo ck Diagram . . . . . . . . . 3-2
3-2. HP 85110A S-P
arameter T
est Set Signal Flow. . . . . . . . . . . . . 3-3
3-3. InstrumentState1 . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-4. InstrumentState2 . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-5. Instrumen
tState 3.. . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-6. InstrumentState4 . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-7. InstrumentState5 . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3-8. Instrumen
tState6 . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3-9. InstrumentState7 . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3-10. InstrumentState8 . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3-11. Pulsed-RF S-Parameters versus Frequency (Frequency Domain Point-in-Pulse) 3-13
3-12. Pulsed-RF S-Parameters versus Time (Pulse Prole Domain) Measurement.
Internal Pulse Output and Internal MeasurementTrigger . . . . . . . 3-14
3-13. Amplier Gain, Frequency Domain Point-in-Pulse . . . . . . . . . . . . 3-16
3-14. F
requency List Displa
y During Measuremen
t Calibration . . . . . . . . . 3-18
3-15. Pulse Prole, Frequency List Segment Number 1 . . . . . . . . . . . . 3-19
3-16. S
21
, Pulse Prole, Thru . . . . . . . . . . . . . . . . . . . . . . . 3-20
3-17. Minimum Time Span, Resolution P
erio d = 100 ns . . . . . . . . . . . . 3-21
3-18. S
11
, Smith Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
3-19. Net
work Analyzer Measurement Cycle . . . . . . . . . . . . . . . . . 3-23
3-20. Example Internal Pulse Output PRP and Duty Cycle . . . . . . . . . . 3-25
3-21. External Trigger and Stop Sweep Timing Diagram . . . . . . . . . . . 3-26
3-22. External Control of PRP and DutyCycle . . . . . . . . . . . . . . . 3-27
3-23. Using External Trigger and External Mo dulation PRP = 10 microseconds,
Duty Cycle = 50% . . . . . . . . . . . . . . . . . . . . . . . . 3-28
3-24. Test Set Maxim um Signal Levels . . . . . . . . . . . . . . . . . . . 3-30
Contents-6