Agilent Technologies 83640B Service Guide

Note
The
oscilloscop e
vertical
sensitivity
is
initially
set
to
50
mV/division
(5
mV/division
with
a
10:1
prob
e) pro
viding a
logarithmic scale
of 
1.5
dB/division. If
necessary,
decrease the
vertical
sensitivity
for
some
frequency
bands
to
100
mV/division
in
order
to
displa
y
the
en
tire
trace on
the CR
T
(the
oscilloscop
e
is already
set to
10 mV/division
for the
83623B/L
and the
83624B).
If y
ou do
c
hange
the
v
ertical
sensitivit
y
b
y
half,
remem
b
er
that
the
logarithmic
scale
m
ust
c
hange
b
y
half
also.
Band
1
Adjustment.
97.
Switc
h
b
et
w
een the
fastest sw
eep time
(0 ms)
and
200
ms
sw
eep
time
and
c
hec
k
that
p
o
w
er
c
hanges
less
than
2/3
division
(

1
dB.)
If
not,
adjust
the
appropriate rise
or dela
y
term
(steps
98
through
100)
and
rep
eat
this
step.
Note
If
fast
sw
eep
has
more
p
o
w
er
than
slo
w
sw
eep
do
not
readjust.
Contin
ue with
the
next
step.
98.
On the
synthesizer,
set:
4
SWEEP
TIME
5
4
0
5
4
msec
5
99.
Press
4
SINGLE
5
sev
eral
times
to
initiate
sev
eral
sw
eeps
and
c
hec
k
that
a drop
in p
ow
er 
1
division
o ccurs
when
in
single
sw
eep.
If
it
is
less
than
1
division
,
skip
the
remainder
of
\Band
1
Adjustmen
t"
and
con
tinue
with \Band
2
Adjustmen
t."
If
the
drop
in
p
o
wer
is
>
1
division,
increase
the
A
term
of
the
dela
y
adjustmen
t
#561
to
put
the
A
term
at
the
high
end
of
the
p
eak.
Then
rep
eat
from
step
95.
100.
Adjust
calibration
constan
t #561,
YTF
Dly
T
erm
A
Hrm
1,
to
maximize
p
o
w
er
for
the
lo
w
end
of band
1.
Set
the
calibration
constan
t
for
the
middle
of
the
p
eak
ed
range.
101.
Adjust
calibration
constan
t
#571,
YTF
Dly
T
erm
BHrm
1, to
maximize
p
o
w
er
for
the
high
end
of
band
1.
Set
the
calibration
constan
t
for
the
middle
of
the
p
eak
ed range.
102.
Adjust calibration
constant
#205,
YTM
Rise;
Band
1,
to
minimize
p
o
w
er
drop
out
at
the
start
of
band
1.
Band
2
Adjustment.
Note
If the
oscilloscop e
is
not
already
set
to
5
mV/division
(or
10
mV/division
for the
83623B
/L
and
the
83624B
),
do
so
no
w.
The
logarithmic scale is calculated with the 5 mV/division v
alue so for mo dels
using 10 mV/division the logarithmic scale m
ust c
hange b
yhalf.
103. On the syn
thesizer, set:
4
START
54
7
54
GHz
5
4
STOP
5
4
13.5
5
4
GHz
5
4
CONT
54
SWEEP TIME
54
0
54
msec
5
4
POWER LEVEL
54
25
54
dBm
5
104. Decrease the synthesizer p ower level until the level of the entire trace on the oscilloscop e
begins to drop.
105. Switchbetween the fastest sweep time (0 ms) and 200 ms sweep time and check that
power changes less than  2/3 division. If not, adjust the appropriate rise or delayterm
(steps 106 through 108) and then repeat this step.
3-52 Adjustments
Amplifier/Filter Adjustments
Agilent 8360

Agilent Technologies 83640B Specifications

General

Brand	Agilent Technologies
Model	83640B
Category	Portable Generator
Language	English