Agilent Technologies 83640B Service Guide

63.
Mo dify
calibration constan
t #625,
YTF Gain;
Band 5,
to maximize
high
end
p
o
w
er.
64. Mo
dify calibration
constan
t
#635,
YTF
Oset;
Band
5,
to
maximize
lo
w
end p
ow
er.
65.
Rep
eat
steps
61
and
62 un
til the
entire
band is
peak
ed.
66.
Note the
value
of calibration
constant
#635, YTF
Oset;
Band
5
.
Step do
wn the
calibration constan
tin
100 coun
t
steps
and
v
erify
that
the
en
tire
trace
shifts
do
wn
ev
enly
.
If
the
p
o
w
er
c
hange
is
not
uniform, rep
eat steps
61 through
63 un
til
it
is.
Then
c
hange
calibration
constan
t#635
back
to the
recorded v
alue.
67. On
the syn
thesizer, set:
4
PO
WER
LEVEL
5
4
0
5
4
dBm
5
68.
Adjust
calibration
constan
t
#135, Squegg
Clamp 5A,
to maximize
RF output
p
o
w
er
across the
band.
Band
6 Adjustment
(
83640B
/L
and
83650B
/L
only).
69.
On
the
syn
thesizer
set:
4
ST
ART
54
32
54
GHz
5 (
83640B/L)
4
ST
ART
5
4
33.5
5
4
GHz
5
(
83650B
/L)
4
STOP
5
4
40
5
4
GHz
5
(
83640B
/L)
4
STOP
5
4
38
5
4
GHz
5
(
83650B
/L)
4
PO
WER
LEVEL
54
25
54
dBm
5
70.
Set
the
oscilloscop e
vertical
position
as necessary
to
displa
y
the
trace.
71.
Decrease
the
syn
thesizer
p
o
w
er
lev
el
un
til the
level
of
the
en
tire
trace
on
the
oscilloscop
e
b
egins
to
drop.
72.
Mo
dify
calibration constan
t
#626,
YTF
Gain;
Band
6,
to
maximize
high
end
p
o
w
er.
73.
Mo
dify
calibration
constan
t
#636,
YTF
Oset;
Band
6, to
maximize
lo
w
end
p
o
w
er.
74.
Rep
eat
steps
70
and
71
un
til
the
en
tire
band
is
p
eak
ed.
75.
Note the
v
alue
of
calibration
constan
t
#636,
YTF
Oset;
Band
6
.
Step
do
wn
the
calibration
constan
t
in
100
coun
t
steps
and
v
erify
that
the
en
tire
trace
shifts
do
wn
ev
enly
.
If the
po
w
er
c
hange
is
not
uniform,
rep
eat
steps
70
through
72
un
til
it
is.
Then
c
hange
calibration
constan
t
#636
bac
k
to
the
recorded v
alue.
76.
On
the
syn
thesizer,
set:
4
PO
WER
LEVEL
5
4
0
5
4
dBm
5
77.
Adjust
calibration
constan
t
#136,
Squegg
Clamp
3A,
to maximize
RF output
po
w
er
across
the
band.
Band
7
Adjustment
(
83650B
/L
only).
78.
On
the
syn
thesizer
set:
4
ST
ART
54
38
54
GHz
5
4
STOP
54
50
54
GHz
5
4
POWER LEVEL
54
25
54
dBm
5
79. Set the oscilloscop
ev
ertical position as necessary to displa
y the trace.
80. Decrease the syn
thesizer po
wer lev
el un
til the lev
el of the en
tire trace on the oscilloscop e
begins to drop.
81. Mo dify calibration constan
t #627, YTF Gain; Band 7, to maximize high end p o
wer.
82. Mo dify calibration constant #637, YTF Oset; Band 7, to maximize low end p ower.
83. Repeat steps 79 and 80 until the entire band is p eaked.
84. Note the value of calibration constant #637, YTF Oset; Band 7 .
Step down the calibration constant in 100 count steps and verify that the entire trace
shifts down evenly.Ifthepower change is not uniform, rep eat steps 79 through 81 until
it is. Then change calibration constant #637 back to the recorded value.
3-48 Adjustments
Amplifier/Filter Adjustments
Agilent 8360

Agilent Technologies 83640B Specifications

General

Brand	Agilent Technologies
Model	83640B
Category	Portable Generator
Language	English