Agilent Technologies 83620A User manual

Service Manual
Agilent Technologies
83620A/22A/23A/24A/30A/40A/50A
Synthesized Sweepers
Serial Number Prefixes:
This manual applies to any instrument with the following model number and serial number prefix combinations. You may have to
modify this manual so that it applies directly to your instrument version. Refer to the “Instrument History” chapter.
Agilent Technologies 83620A/22A/24A
3420A, 3250A, 3245A, 3213A, 3145A
Agilent Technologies 83623A
3420A, 3339A, 3250A, 3245A, 3213A, 3145A
Agilent Technologies 83630A
3420A, 3250A, 3245A, 3213A, 3145A, 3143A, 3101A
Agilent Technologies 83640A
3420A, 3339A, 3250A, 3245A, 3213A, 3145A
Agilent Technologies 83650A
3420A, 3250A, 3245A, 3213A, 3145A, 3143A, 3052A
Part Number: 08360-90049
Printed in USA
November 1995
© Copyright 1997-2000 Agilent Technologies, Inc.

ii
Notice
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, Agilent disclaims all warranties, either express or implied with
regard to this manual and to any of the Agilent products to which it pertains, including but not limited to the implied warranties
of merchantability and fitness for a particular purpose. Agilent 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 of the Agilent products to which it
pertains. Should Agilent have a written contract with the User and should any of the contract terms conflict with these terms,
the contract terms shall control.
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Printed in USA July 2004
Notice
Hewlett-Packard to Agilent Technologies Transition
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. To reduce potential confusion, the only
change to product numbers and names has been in the company name prefix: where a
product name/number was HP XXXX the current name/number is now Agilent XXXX. For
example, model number HP 8648 is now model number Agilent 8648.
Contacting Agilent Sales and Service Offices
The sales and service contact information in this manual may be out of date. The latest
service and contact information for your location can be found on the Web at:
http://www.agilent.com/find/assist
If you do not have access to the Internet, contact your field engineer. In any correspondence
or telephone conversation, refer to your instrument by its model number and full serial
number.

Certification
Hewlett-P
ac
k
ard Company certies that this pro duct met its published
specications at the time of shipmen
tfrom the factory
.Hewlett-P
ac
k
ard
further certies that its calibration measuremen
ts are traceable to the United
States National Institute of Standards and T
ec
hnology
,to the exten
tallo
w
ed
b
ythe Institute's calibration facilit
y
,and to the calibration facilities of other
In
ternational Standards Organization mem
bers.
arranty
This Hewlett-P
ac
k
ard instrumen
tpro duct is w
arran
ted against defects in
material and workmanship for a p erio dof one y
ear from date of shipmen
t.
During the w
arran
t
yperio d, Hewlett-Pac
kard Company will, at its option,
either repair or replace pro ducts whic
hpro
v
eto
be defectiv
e.
F
or w
arran
t
yservice or repair, this pro duct m
ust bereturned to aservice
facilit
ydesignated b
yHewlett-P
ac
k
ard. Buy
er shall prepa
yshipping c
harges to
Hewlett-P
ac
k
ard and Hewlett-P
ac
k
ard shall pa
yshipping c
harges to return the
pro duct to Buy
er. Ho
wev
er, Buy
er shall pa
yall shipping c
harges, duties, and
taxes for pro ducts returned to Hewlett-P
ac
k
ard from another coun
try.
Hewlett-P
ac
k
ard w
arran
ts that its soft
w
are and rmw
are designated b
y
Hewlett-P
ac
k
ard for use with an instrumen
twill execute its programming
instructions when prop erly installed on that instrumen
t. Hewlett-P
ac
k
ard does
not w
arran
tthat the operation of the instrumen
t, or softw
are, or rm
w
are will
beunin
terrupted or error-free.

Limita
tion of W
arranty
The foregoing w
arran
t
yshall not apply to defects resulting from improp er or
inadequate main
tenance by Buyer, Buyer-supplied softw
are or in
terfacing,
unauthorized mo dication or misuse, op eration outside of the en
vironmen
tal
specications for the pro duct, or improp er site preparation or maintenance.
NO OTHER W
ARRANTY IS EXPRESSED OR IMPLIED. HEWLETT-
P
A
CKARD SPECIFICALL
YDISCLAIMS THE IMPLIED W
ARRANTIES
OF MER
CHANT
ABILITY AND FITNESS F
OR AP
ARTICULAR
PURPOSE.
Ex
clusive Remedies
THE REMEDIES PRO
VIDED HEREIN ARE BUYER'S SOLE AND
EX
CLUSIVE REMEDIES. HEWLETT-P
A
CKARD SHALL NOT BE
LIABLE F
OR ANY DIRECT, INDIRECT, SPECIAL, INCIDENT
AL, OR
CONSEQUENTIAL D
AMA
GES, WHETHER BASED ON CONTRA
CT,
TOR
T, OR ANY OTHER LEGAL THEOR
Y.
Assistance
Pr
o
duct maintenanc
eagr
e
ements and other customer assistanc
e agr
eements ar
e
available for Hew lett-Packar
dpr
o
ducts. F
or any assistanc
e, c
ontact your ne
ar
est
Hew lett-Packard Sales and Servic
eOc
e.
c

Copyright Hewlett-P
ackard Compan
y 1995
All Righ
ts Reserv
ed. Reproduction, adaptation, or translation without prior
written p ermission is prohibited, except as allo w
ed under the cop
yrightla
ws.
1400 FountaingroveParkway, Santa Rosa CA, 95403-1799, USA

Safety Notes
The follo
wing safet
ynotes are used throughout this man
ual. F
amiliarize
y
ourself with eac
hof the notes and its meaning b efore op erating this
instrumen
t.
ARNING
W
arning denotes ahazard. It calls attention to aprocedure
which, if not correctly performed or adhered to, could result in
injury or loss of life. Do
not
proceed bey
ond aw
arning note until
the indicated conditions are fully understood and met.
CA
UTION
Caution denotes ahazard. It calls atten
tion to a pro cedure
that, if not correctly performed or adhered to, would result in
damage to or destruction of the instrumen
t. Do
not
pro ceed
bey
ond a caution sign un
til the indicated conditions are fully
understoodand met.
v

General Safety Considerations
ARNING
These servicing instructions are for use b
y qualified personnel
only. T
oa
v
oid electrical shock, do not perform any servicing
unless y
ou are qualified to do so.
The opening of cov
ers or remov
al of parts is lik
ely to expose
dangerous v
oltages. Disconnect the instrument from all
v
oltage sources while it is being opened.
The detachable po
w
er cord is the instrument disconnecting
device. It disconnects the mains circuits from the mains
supply before other parts of the instrument. The front panel
switch is only astandb
yswitch and is not a LINE switch.
The po
w
er cord is connected to internal capacitors that may
remain live for seconds after disconnecting the plug from its
po
w
er supply
.
This is aSafety Class Iproduct (pro
vided with aprotectiv
e
earthing ground incorporated in the po
w
er cord). The mains
plug shall only be inserted in asock
et outlet pro
vided with a
protectiv
eearth contact. Any interruption of the protectiv
e
conductor, inside or outside the instrument, is lik
ely to
makethe instrument dangerous. Intentional interruption is
prohibited.
For continued protection against fire hazard replace line fuse
only with same type and rating (F A/2 0V). The use of other
fuses or material is prohibited.
vi

CAUTION
Alw
ays use the three-prong ac po
w
er cord supplied with this
instrumen
t. F
ailure to ensure adequate earth grounding by
not using this cord may cause instrumen
tdamage.
Before switc
hing on this pro duct, mak
esure that the line
v
oltage selector switc
his set to the voltage of the po
w
er
supply and the correct fuse is installed. Assure the supply
v
oltage is in the specied range.
This pro duct is designed for use in Installation Category II
and P
ollution Degree 2per IEC 1010 and 664 respectiv
ely
.
Ven
tilation Requiremen
ts:
When installing the pro duct in a
cabinet, the con
vection into and out of the pro duct m
ust not
berestricted. The ambien
t temp erature (outside the cabinet)
m
ust beless than the maximum operating temp erature of the
pro duct b
y4

Cfor ev
ery 100 w
atts dissipated in the cabinet.
If the total p o
w
er dissipated in the cabinet is greater than
800 w
atts, then forced con
v
ection m
ust b eused.
Before Applying P
o
w
er
V
erify that the pro duct is congured to matc
hthe a
v
ailable main po
w
er source
per the input p ow
er conguration instructions pro
vided in this man
ual.
If this pro duct is to be energized via an autotransformer mak
esure the
common terminal is connected to the neutral (grounded side of the mains
supply).
vii

viii

Preface
This man
ual pro
vides service information for the HP 8360 Series Syn
thesized
Sw
eepers.
Manual Conv
entions
4
F
ront-Panel Key
5
This represen
ts ak
ey ph
ysically lo cated on the instrumen
t.
NNNNNNNNNNNNNNNNNNNNNNN
Softkey
This indicates a \softkey
," ak
ey whose lab el is determined b
y
the rm
w
are of the instrument.
Screen Text
This indicates text displa
y
ed on the instrumen
t's screen.
ix

Instruments Co
v
ered By This Manual
This man
ual applies to instrumen
ts ha
ving aserial n
um
ber prex listed on the
title page (b ehind the \Do cumen
tation Map" tab). Some c
hanges ma
yha
ve to
be made to this manual so that it applies directly to eac
hinstrumen
t; refer
to Chapter 12, \Instrumen
tHistory", to see what c
hanges ma
yapply to y
our
instrumen
t.
Aserial n
um
ber lab el (Figure 0-1)isattached to the instrumen
t's rear panel.
A prex (four digits follow
ed b
yaletter), and asux (v
edigits unique to
eac
hinstrumen
t), comprise the instrumen
tserial n
um
ber.
Figure 0-1. Typical Serial Number Label
This man
ual applies to HP 8360 syn
thesized sw
eepers ha
ving amo del n
um
ber
and serial n
umber prex listed on the title page (b ehind the \Do cumen
tation
Map" tab). Some c
hanges ma
yha
v
eto bemade
to this manual so that it
applies directly to eac
hinstrumen
t; refer to Chapter 12, \Instrumen
tHistory"
in this man
ual to see what c
hanges ma
yapply to y
our instrumen
t.
Compliance
This instrumen
t has been designed and tested in accordance with IEC
Publication 348, Safet
y Requiremen
ts for Electronic Measuring Apparatus, and
has b een supplied in a safe condition. The instruction documen
tation contains
information and warnings whichm
ust b e follo
wed b
y the user to ensure safe
operation and to maintain the instrument in a safe condition.
x

Sales and Service Offices
Hewlett-P
ackard Sales and Service Offices
US FIELD OPERATIONS
Headquarters Cal forn a, Northern Cal forn a, Southern
Hewlett-P
ac
k
ard Co. Hewlett-P
ac
k
ard Co. Hewlett-P
ac
k
ard Co.
19320 Pruneridge Av
en
ue 301 E. Ev
elyn 1421 South anhattan Av
e.
Cup ertino, CA 95014 ountain View, CA 94041 F
ullerton, CA 92631
[phone] [phone] [phone]
Colorado Georg a Ill no s
Hewlett-P
ac
kard Co. Hewlett-P
ack
ard Co. Hewlett-P
ac
k
ard Co.
24 In
v
erness Place, East 2000 South P
ark Place 5201 T
ollview Drive
Englew
oo
d, CO 80112 A
tlanta, GA 30339 Rolling eado
ws, IL 60008
[phone] [phone] [phone]
New Jersey T
exas
Hewlett-Pac
k
ard Co. Hewlett-P
ac
k
ard Co.
150 Green P
ond Rd. 930 E. Campb ell Rd.
Ro c
k
a
w
a
y
,NJ 07866 Ric
hardson, TX 75081
[phone] [phone]
EUR
OPEAN FIELD OPERA
TIONS
Headquarters F
rance German
y
Hewlett-P
ac
k
ard S.A. Hewlett-P
ac
k
ard F
rance Hewlett-P
ac
k
ard Gm
bH
150, Route du Nan
t-d'Avril 1Aven
ue Du Canada Hewlett-P
ac
k
ard Strasse
1217 eyrin 2/Genev
aZone D'Activite De Courtab oeuf 61352 Bad Hom
burg v.d.H
Switzerland F-91947 Les Ulis Cedex German
y
(41 22) 780.8111 F
rance (49 6172) 16-0
(33 1) 69 82 60 60
Great Br ta n
Hewlett-P
ack
ard Ltd.
Eskdale Road, Winnersh T
riangle
Wokingham, Berkshire R
G41 5DZ
England
(44 734) 696622
xi

Hewlett-Packard Sales and Service Offices (continued)
INTER
CON FIELD OPERATIONS
Headquarters Austral a Canada
Hewlett-P
ac
k
ard Compan
yHewlett-P
ac
k
ard Australia Ltd. Hewlett-P
ac
k
ard (Canada) Ltd.
3495 Deer Creek Road 31-41 Joseph Street 17500 South Service Road
P
alo Alto, California, USA Blackburn, Victoria 3130 T
rans-Canada High
w
a
y
94304-1316 (61 3) 895-2895 Kirkland, Queb ec H9J 2X8
[phone] Canada
[phone]
Ch na Japan S ngap ore
China Hewlett-P
ac
k
ard Compan
yHewlett-P
ac
k
ard Japan, Ltd. Hewlett-P
ac
k
ard Singap ore (Pte.) Ltd.
38 Bei San Huan X1 Road 1-27-15 Y
ab e, Sagamihara 150 BeachRoad
Sh
uang Y
uSh
u Kanagaw
a229, Japan #29-00 Gatew
a
yW
est
Hai Dian District (81 427) 59-1311 Singap ore 0718
Beijing, China (65) 291-9088
(86 1) 256-6888
T
a w
an
Hewlett-P
ac
k
ard T
aiw
an
8th Flo or, H-P Building
337 F
uHsing North Road
T
aip ei, T
aiw
an
(886 2) 712-0404
xii

Contents
1. Equipment Required
HP 83620A/22A Required Equipmen
t............1-2
HP 83623A/24A Required Equipmen
t........... . 1-9
HP 83630A Required Equipmen
t.......... . . . .1-16
HP 83640A Required Equipmen
t........... . . . 1-23
HP 83650A Required Equipmen
t..............1-30
2. P
erformance T
ests
Ho
wto Use This Chapter .. . ..............2-1
Men
us ............. . ...........2-2
Operator's Chec
k.................. . .2-2
Operation V
erication T
ests ...............2-2
Automated P
erformance T
ests ...... . . . .....2-2
Equipmen
tRequired ............... . . . 2-3
T
est Record ...................... 2-3
T
est Sequence .... . . . . . ............2-3
Calibration Cycle ............ . . . . . . . .2-3
Operation V
erication ................. . . 2-4
1. Self-tests . . . . . . . . ...............2-4
2. P
o
w
er Accuracy ...... . . . . . .........2-5
3. Po
w
er Flatness ......... . . . . . . . . . . . . 2-5
4. Maxim
um Lev
eled P
o
w
er . . ............ . .2-5
PERFORMANCE TESTS . . . . . . . . . . . . . . . . . 2-7
1. In
ternal Timebase: Aging Rate . . . . . . . . . . . . . . 2-8
2. Sw
ept F
requency Accuracy . . . . . . . . . . . . . . . 2-12
3. F
requency Switching Time . . . . . . . . . . . . . . . . 2-22
CW F
requency Switc
hing Time (Across Bandswitc
hP
oints) 2-23
Stepped Sw
eep F
requency Switc
hing Time (Within a
Frequency Band) . . . . . . . . . . . . . . . . . 2-24
Contents-1

Frequency List F
requency Switc
hing Time (Across
Bandswitc
hP
oin
ts) ........ . . . . . . . .2-25
4. P
o
wer Accuracy . . . . . ...............2-28
5. P
o
w
er Flatness .............. . . . . . . . 2-31
Lo
wBand P
o
w
er Flatness ... . . . . . . . .....2-32
High Band P
ow
er Flatness . . .............2-33
Millimeter Band P
o
w
er Flatness
>
20 GHz and

40 GHz .2-33
Millimeter Band P
o
w
er Flatness
>
40 GHz . . . . . . ..2-33
6. Maximum Leveled Po
w
er ................2-34
7. External Lev
eling ...................2-37
8. Spurious Signals (Harmonics &Subharmonics) .......2-40
Harmonic Measuremen
t
<
20 GHz ......... . .2-41
Harmonic Measuremen
t20to 26.5 GHz .........2-43
Harmonic Measuremen
t26.5 to 40 GHz . . .......2-45
Harmonic Measuremen
t38 to 50 GHz ........ . .2-46
Harmonic/Subharmonic V
erication Pro cedure
<
20 GHz .2-47
Harmonic/Subharmonic V
erication Pro cedure
> 20 GHz .2-48
9. Spurious Signals (Non-Harmonic) ......... . ...2-50
Fixed Spurious Signals .................2-51
Lo
wBand
Oset Spurious Signals ............2-53
Lo
wBand Mixer Spurs .... . . . .........2-54
10. Spurious Signals (Line-Related) ............ . 2-56
11. Single Sideband Phase Noise ..............2-60
12. Pulse Mo dulation On/O Ratio .............2-65
13. Pulse P
erformance . . . . . . . ............2-68
Rise and F
all Times ...... . . . . . . . .....2-68
Pulse Lev
eling Accuracy .............. . .2-73
14. Pulse P
erformance (Alternate Pro cedure) .........2-76
Rise and F
all Times
<
20 GHz . . . . . . . . . . ...2-76
Pulse Lev
eling Accuracy
<
20 GHz ..... . .....2-81
Rise and F
all Times
> 20 GHz . . . . . . . . . . . . . 2-83
Pulse Lev
eling Accuracy
> 20 GHz . . . . . . . . . . . 2-85
15. Pulse Mo dulation Video F
eedthrough . . . . . . . . . . 2-87
System Calibration . . . . . . . . . . . . . . . . . . 2-89
Video Gain . . . . . . . . . . . . . . . . . . . . . .2-90
Low Band Video F
eedthrough . . . . . . . . . . . . . 2-91
Video F
eedthrough > 2 GHz . . . . . . . . . . . . . . 2-95
16. AM Accuracy . . . . . . . . . . . . . . . . . . . . . 2-96
Contents-2

LowBand
<
2GHz ................ . .2-96
High Band
>
2GHz and
<
20 GHz .... . . . . . . . 2-99
High Band
>
20 GHz { Doubler Engaged . . . .....2-101
17. AM Bandwidth ................. . . . 2-104
18. AM Dynamic Range ....... . . . . . . . ....2-107
Normal AM Dynamic Range . . . . . .........2-109
Deep AM Dynamic Range .............. . 2-110
19. FM Accuracy ........ . . . . . ........2-114
External FM . . . . . ................2-114
In
ternal FM (Option 002 only) .............2-116
20. FM Bandwidth ............. . ......2-118
Find Quadrature ............. . . . . . . 2-121
DC FM Flatness (Unlo c
k
ed) ..............2-122
21. Maximum FM Deviation . . . . ............2-124
DC FM (

100 Hz) (Using HP 8111A or HP 8116A) ... . 2-125
A
CFM (at 100 kHz) (Using HP 3325A) .........2-126
22. In
ternal Pulse Accuracy (Option 002) ..........2-131
23. Mo dulation Meter (Option 002) ....... . .....2-133
3. Adjustmen
ts
Ho
wT
oUse This Chapter ............ . . . ..3-1
Menu Maps . .....................3-1
Equipmen
t Required ...................3-2
Cautions And W
arnings ... . . . . . ..........3-2
List of Ad ustmen
ts .......... . . . . . . . ...3-4
1. 10 MHz Standard ................. . . 3-5
Accuracy V
ersus Ad ustmen
tIn
terval . . .........3-9
An Alternate Metho d........ . . . . . ....3-10
2. Fractional-N V
CO .......... . . . . . . . . . 3-11
3. F
ractional-N Reference and API Spurs ... . ......3-13
125 kHz Reference Spur Ad ustmen
t. .. . . . . . . . . 3-14
API 1 Spur Ad ustmen
t . . . . . . . . . . . . . . . . 3-16
API 2 Spur Ad ustmen
t . . . . . . . . . . . . . . . . 3-16
4. Sw
eep Ramp . . . . . . . . . . . . . . . . . . . . . . 3-18
5. Sampler Assem
bly . . . . . . . . . . . . . . . . . . . 3-19
200 MHz Lo op V
CO T
une Check . . . . . . . . . . . . 3-20
Sampler Matc
h Ad ustmen
t . . . . . . . . . . . . . . 3-21
200 MHz Lo op Gain Ad ustment . . . . . . . . . . . . 3-22
Contents-3

IF Gain Ad ustmen
t..................3-22
6. YO Driver +10V Reference ....... . . . . . . . .3-24
7. YO Driver Gain and Linearit
y . . . ...........3-26
8. YO Loop Gain ............... . . . . . .3-29
9. Amplier/Multiplier Ad ustmen
ts ....... . . . . . 3-31
Ad ustmen
tHelp . . . . . . .............3-32
Oset and Gain Ad ustmen
ts .............3-32
Ad usting to the Cen
ter of the P
assband .. . . . . . .3-32
SRD Bias Ad ustmen
t. . . .............3-32
Single Band Dela
yComp ensation Ad ustmen
ts .....3-32
Setting the F
astest Sw
eep Time ......... . ..3-33
Sw
eep Speed Related Ad ustmen
ts ........ . .3-33
YTM Bandcross DelayT
erms ............3-33
General T
ec
hniques .. . . . ............3-33
Pro cedure ............. . . . ......3-34
YTM Gain Ad ustmen
t................3-39
Band 1Ad ustmen
t . . . ..............3-39
Band 2Ad ustmen
t......... . .......3-40
Band 3Ad ustmen
t................ . 3-41
Band 4 Ad ustmen
t(HP 83630A/40A/50A only) ....3-43
Band 5Ad ustmen
t(HP 83640A/50A only) .. . . . .3-44
Band 6Ad ustmen
t(HP 83640A/50A only) ......3-44
Band 7Ad ustmen
t(HP 83650A only) .........3-45
Multi-band Amplier/Multiplier Dela
yComp ensation ..3-46
Band 4Multi-band Amplier/Multiplier Dela
y
Comp ensation (HP 83630A/40A/50A only) .....3-47
V
erication ................ . . . .3-48
10. Amplier/Filter Ad ustmen
ts . . . ...........3-49
Ad ustmen
tHelp .. . . . . . . . . . . . . . ....3-50
Oset and Gain Ad ustmen
ts ....... . .....3-50
Squegg Clamp Calibration Constan
ts . . . . . . . . . 3-50
Ad usting for the Center of the P
assband . . . . . . . 3-50
Single Band Dela
y Compensation Ad ustmen
ts . . . . . 3-51
Setting the F
astest Sw
eep Time . . . . . . . . . . . . 3-51
Sweep Sp eed Related Ad ustmen
ts . . . . . . . . . . 3-51
YTF Bandcross Dela
yT
erms . . . . . . . . . . . . . 3-51
Pro cedure . . . . . . . . . . . . . . . . . . . . . . 3-54
Amplier/Filter Oset and Gain Ad ustment. . . . . . . 3-58
Contents-4

Band 1 Ad ustmen
t.................3-58
Band 2Ad ustmen
t......... . . . . . . . .3-61
Band 3Ad ustmen
t . . . . . . . ..........3-63
Band 4 Ad ustmen
t(HP 83630A/40A/50A only) ....3-65
Band 5Ad ustmen
t(HP 83640A/50A only) .... . .3-67
Band 6 Ad ustmen
t(HP 83640A/50A only) . . ....3-68
Band 7Ad ustmen
t(HP 83650A only) .........3-68
Auto T
rac
king V
erication ..... . . . . . ....3-69
Single-Band Amplier/Filter Dela
y . . . .......3-72
Band 1Ad ustmen
t.................3-73
Band 2Ad ustmen
t............ . ....3-74
Band 3Ad ustmen
t........... . . . . . .3-75
Band 4 Ad ustment (HP 83630A/40A/50A) ......3-76
Band 5Ad ustmen
t(HP 83640A/50A only) . . ....3-76
Band 6Ad ustmen
t(HP 83640A/50A only) ......3-77
Band 7Ad ustmen
t(HP 83650A only) .........3-78
Multi-band YTF Dela
y . . . ............3-79
Band 4Multi-band YTF Dela
y(HP 83630A/40A/50A
only) ................... . ..3-82
Operation Chec
k..................3-83
11. Lo
wP
o
w
er SRD Bias . . . ..............3-84
12. Mo dulator Oset and Gain .......... . . . ..3-86
13. ALC P
o
w
er Lev
el Accuracy .............. . 3-91
LowBand ALC P
o
w
er Accuracy Ad ustmen
t.......3-93
High Band P
ow
er Accuracy Ad ustment. . .......3-95
14. P
o
w
er Flatness ..... . . . . . . . ........3-97
Lo
wBand P
o
w
er Flatness .......... . . . . . 3-98
High Band P
ow
er Flatness ...............3-98
Millimeter Band P
o
wer Flatness . . . . . . . . . . . .3-99
15. AM/FM D
A
COset and Gain (Option 002) .. . ....3-100
16. AM Accuracy . . . . . . . . . . . . . . . . . . . . . 3-102
AM Oset .. . . . . . . . . . . . . . . . . . . . . 3-103
Log AM Accuracy . . . . . . . . . . . . . . . . . . 3-103
Linear AM Accuracy . . . . . . . . . . . . . . . . . 3-104
17. AM Dela
y . . . . . . . . . . . . . . . . . . . . . . 3-106
18. FM Gain . . . . . . . . . . . . . . . . . . . . . . . 3-109
19. Square Wave Symmetry . . . . . . . . . . . . . . . . 3-112
High Band Ad ustment . . . . . . . . . . . . . . . . 3-112
Contents-

Low Band Ad ustmen
t.................3-113
20. AM Input Impedance ........ . . . . . . . ..3-114
A. A10 Jump er . . . . . . . .............3-115
B. A8 Jumper ................ . . . .3-116
21. FM Input Impedance ...... . . . . . . . ....3-117
A. A11 Jump er . . . . . ...............3-118
B. A8 Jumper .............. . . . . . .3-119
22. Mo dulation Generator Flatness (Option 002) .... . . . 3-120
23. External T
rigger Edge Selection . ............3-123
T
riggering on the Leading Edge .............3-124
T
riggering on the T
railing Edge ......... . ...3-124
24. V
olts/GHz ............ . . . . . . . ...3-125
4. Calibration Constan
ts
Denition . . ......................4-1
Memory Areas ..... . . . ..............4-2
W
orking Data ........... . . . .......4-2
Protected Data .....................4-2
Default Data ... . ..................4-2
Chec
ksum V
erication ........ . ..........4-3
Calibration Constan
tP
assw
ord ............. . .4-3
Entering aP
assw
ord ..................4-4
Disabling aP
assw
ord ..................4-4
Setting aP
assw
ord .. . . . . . ............4-5
Bypassing the P
assw
ord ......... . . . . . . . .4-5
Changing Working Data Calibration Constan
ts ........4-6
Sa
ving Working Data Calibration Constants . . .......4-7
Loading Protected Data Calibration Constan
ts ...... . .4-7
Loading Default Data Calibration Constan
ts .........4-8
Calibration Constan
tDescriptions ...... . .......4-8
5. Automated T
ests
Intro duction . . . . . . . . . . . . . . . . . . . . . . . 5-1
Setting Up the System . . . . . . . . . . . . . . . . . . . 5-2
Hardware Requiremen
ts . . . . . . . . . . . . . . . . . 5-2
Operating System Requirements . . . . . . . . . . . . . 5-2
Installing the Soft
ware . . . . . . . . . . . . . . . . . . . 5-3
Disk Files . . . . . . . . . . . . . . . . . . . . . . . 5-3
Contents-6