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Measuring Instruments
435B
HP 435B Service Manual
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M
o
d
e
l
435
Β
P
e
rf
o
rm
a
n
ce
T
ests
PERF
O
RM
A
N
C
E
T
E
STS
4-5
.
P
O
WER
REFEREN
C
E
LEVEL
T
E
ST
(Cont'
d
)
8
.
O
b
se
rv
e
t
h
e
indi
cat
i
o
n
on
t
h
e
DVM
.
If
l
ess
t
h
a
n
400
mi
c
r
o
v
o
l
ts,
pr
ocee
d
to
t
h
e
n
e
x
t
ste
p
.
If
400
mi
c
r
o
v
o
l
ts
o
r
g
r
eate
r
,
pr
ess
a
nd
h
o
ld
t
h
e
432
Α
FINE
ZER
O
s
wi
tc
h
a
nd
a
d
j
u
st
t
h
e
CO
AR
S
E
ZER
O
co
n
t
r
o
l
so
t
h
at
t
h
e
DVM
indi
cates
200
mi
c
r
o
v
o
l
ts
o
r
l
ess
.
Th
e
n,
r
e
l
ease
t
h
e
FINE
ZER
O
s
wi
tc
h
a
nd
pr
ocee
d
to
t
h
e
n
e
x
t
ste
p
.
9
.
R
o
und
o
ff
t
h
e
DVM
indi
cat
i
o
n
to
t
h
e
n
ea
r
est
mi
c
r
o
v
o
l
t
a
nd
r
eco
rd
t
hi
s
v
a
lu
e
as
V
ο
.
10
.
Set
t
h
e
P
o
w
e
r
M
ete
r
P
O
WER
REF
s
wi
tc
h
to
ON
(in)
a
nd
r
eco
rd
t
h
e
indi
cat
i
o
n
s
o
b
se
rv
e
d
on
t
h
e
DVM
as
V
1
.
11
.
Di
sco
nn
ect
t
h
e
DVM
n
egat
iv
e
inpu
t
l
ea
d
fro
m
t
h
e
V
RF
co
nn
ecto
r
on
the
432A
and
r
eco
nn
ect
i
t
to
432
Α
c
h
ass
i
s
g
r
o
und
.
R
eco
rd
t
h
e
n
e
w
indi
cat
i
o
n
o
b
se
rv
e
d
on
t
h
e
DVM
as
V
com
p
.
12
.
Ca
l
c
ul
ate
t
h
e
p
owe
r
r
e
f
e
r
e
n
ce
osc
ill
ato
r
o
u
t
pu
t
l
e
v
e
l
(
Ρ
RF)
fr
o
m
t
h
e
f
o
ll
o
win
g
f
o
rmul
a
:
Wh
e
r
e
:
2
V
co
mp
(V
i
-
V
ο
)
+
V
ο
2
_
μ
J
2
V
1
=
pr
e
vi
o
u
s
ly
r
eco
rd
e
d
v
a
lu
e
V
ο
=
pr
e
vi
o
u
s
ly
r
eco
rd
e
d
v
a
lu
e
R
=
pr
e
vi
o
u
s
ly
r
eco
rd
e
d
v
a
lu
e
4
R
(C
ALIB
R
ATI
O
N
FA
C
T
O
R)
Ρ
RF
=
p
owe
r
r
e
f
e
r
e
n
ce
osc
ill
ato
r
o
u
t
pu
t
l
e
v
e
l
Vc
οηπΡ
=
p
re
vi
o
u
s
ly
r
eco
rd
e
d
v
a
lu
e
C
ALIBRATI
O
N
FA
C
T
O
R
=
v
a
lu
e
f
o
r
t
h
e
rmi
sto
r
m
o
un
t
at
50
MHz
(t
r
acea
bl
e
to
t
h
e
N
at
i
o
n
a
l
Bur
ea
u
o
f
Sta
nd
a
rd
s)
13
.
V
e
rify
t
h
at
t
h
e
Ρ
RF
i
s
wi
t
hin
t
h
e
f
o
ll
ow
in
g
limi
ts
:
ΜΙ
η
.
Act
u
al
Μαχ
.
0
.981
m
W
Ι
Ι
1
.019
MW
33
35
Table of Contents
Table of Contents
4
General Information
9
Introduction
9
In Struments Covered by Manual
9
De Sc R Iptio N
9
O P B Tio N S
10
Atte Ry
11
Sa F et y Co N S ID E R at I O N
11
HP M Odel 435 Β a
11
R Ecommend Ed Test Equipment
11
I Nstall Atio N
13
Introduction
13
Preparation for Use
13
T I a L in S P Ect I O N
13
Mete R
14
Ower Cable
14
Oltage Selection
14
L Ect I O N
14
Interconnections
14
L I N E V Oltage Selection
14
Operat Ing Environment
15
B Ench O Peration
15
F R Ac K Moun Ting
15
M Ains Plu Gs Available
15
B Atte Ry Installation
16
Ow er Mete R
16
3-12 . Battery
20
Rea R Pa N E L Co N Trol S, Connectors and Ind Icato R S
22
Oper Ator's C He Cks
23
O Per Ating Instru Ct I O N S
25
Per Atio N
26
Specified Uncertainties
27
Calculating M
29
Eas Ureme Nt un Certa Inties
29
Mismatch un Certai Nties
30
Calculating M Eas Ureme Nt un Certai Nty
31
Introduction
32
In Eas
32
R St Case
32
CC Ur
32
Ac Ur
32
Perf O Rm an Ce te Sts
34
Eco Rd
34
Rf Rm Ce Tests
34
Power Reference
34
Est
35
Z Ero Carryover Test Set up
35
Erform Ance Est
37
Est
38
Ad Ju St Men Ts
40
Introduction
40
N S
40
Ad J
40
Locations
40
Specifications
40
Actory Selected Co Mponents
40
Ower Reference Oscillator Level Adjustment
42
P Ower Reference Osc Ill Ator Level
43
Multivibrator Adjust Ment
45
Ower Meter Adjustments with 50Ω P
47
P Ower Meter Ad
47
Owe R Sensor
48
O W E R M Ete R Ad J U St M E N Ts Wi T H Ca Libr Ato R
50
With Calibrator
50
Repl Ac
52
Section E ABLE P V I a RTS
52
Introduction
52
Abbreviations
52
E Pl Acea Bl E P
52
Actory Se Lecte D Parts (*)
52
Orderin G in St Ructions
52
Arts Provi Sioning
52
Epl Acea Ble Parts
52
Ma Nu al Chan G es
63
Introduction
63
Manual Change in Structions
63
Servic E
65
Introduction
65
Sa F et y Co N S ID E R at I O N
65
H Eets
65
Fr O N T
69
Ower Sensor
77
Sc Hem at IC
78
Ge Neral Se Rvi Ce Inf Orm at Ion
79
Ca Libr Ato R
79
Oa Rd S
81
Ρ/Ο Α4 Ass Embly
82
Ρ/0 Α
86
P Ower S Upply
89
Operational Amplifiers
90
Ρ/Ο Α4 Assem Bl y
92
Ρ/Ο Α4 Ass Embly
99
Ower Refere Eference Assembly
107
Sc Hematic Diagram
107
Ocatio Ns
108
Ero
110
5
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HP 435B Specifications
General
Brand
HP
Model
435B
Category
Measuring Instruments
Language
English
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