Agilent Technologies 83640B Service Guide

Band 4
Adjustment (
83630B/L,
83640B/L,
and 83650B
/L).
119.
On
the
syn
thesizer,
set:
4
ST
ART
5
4
20
5
4
GHz
5
4
STOP
54
26.5
54
GHz
5 (
83630B/L
and
83650B
/L
)
4
STOP
5
4
25.5
5
4
GHz
5
(
83640B
/L)
4
CONT
5
4
SWEEP
TIME
5
4
0
5
4
msec
5
4
POWER
LEVEL
5
4
25
5
4
dBm
5
120.
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.
121.
Switc
h
b
et
w
een
the
fastest
sw
eep
time
(0
ms)
and
200 ms
sweep
time and
chec
k
that
p
o
w
er
c
hanges
less than
 2/3
division. If
not, adjust
the
appropriate
rise
term
(steps
122
and 123)
and then
rep
eat
this
step.
122.
On
the
syn
thesizer,
set:
4
SWEEP
TIME
5
4
0
5
4
msec
5
123.
a. Press
4
SINGLE
5
several
times
to
initiate
sev
eral
sw
eeps.
Note
an
y
drop
in
p
o
w
er.
b.
Press
4
SINGLE
5
4
RF
ON/OFF
5
.
Then
press
4
RF
ON/OFF
5
again
(LED
on)
and
note
an
y
drop
in
p
o
w
er.
c.
The
p
ow
er
loss
noted
in
step
a
can
b
e
no
smaller
than
the
p
o
w
er
loss
noted
in
step
b.
If
the
step
a
p
o
w
er
loss
is
greater
than
the
step
b
po
wer
loss b
y
1
division
(

1.5
dB),
increase
the A
term of
the
dela
y
adjustmen
t
#564
to
put
the
A
term
at
the
high
end
of
the
p
eak.
Then
rep
eat from
step 119.
If
the
p
o
wer
loss in
step
a
is
not
smaller
than
that
in
step
b,
skip
the
rest
of
\Band
4
Adjustmen
t"
and
con
tin
ue
with
\Band
5
Adjustmen
t."
124.
Adjust
calibration
constan
t
#564,
YTF
Dly
T
erm
A
Hrm
4,
to
maximize
p
o
w
er
for
the
lo
w
end
of band
4.
125.
Adjust
calibration
constan
t
#574,
YTF
Dly
T
erm
B
Hrm 4,
to
maximize
p
o
w
er
for
the
high
end
of
band
4.
Band
5
Adjustment
(
83640B
/L
and
83650B
/L only).
126.
On
the
syn
thesizer,
set:
4
ST
ART
5
4
25.5
5
4
GHz
5
(83640B
/L)
4
ST
ART
5
4
26.5
5
4
GHz
5
(
83650B
/L)
4
STOP
5
4
32
5
4
GHz
5
(
83640B
/L)
4
STOP
5
4
33.5
5
4
GHz
5
(
83650B
/L)
4
CONT
54
SWEEP
TIME
54
0
54
msec
5
4
POWER
LEVEL
5
4
25
5
4
dBm
5
127. 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.
128. Switc
hbet
ween the fastest sw
eep time (0 ms) and 200 ms sw
eep time and c
heck that
po
wer c
hanges less than 2/3 division (
 1 dB). If not, adjust
the appropriate rise or dela
y
term (steps 129 through 131) and then
repeat this step.
129. On the syn
thesizer, set:
4
SWEEP TIME
54
0
54
msec
5
130. a. Press 4
SINGLE
5 several times to initiate several sweeps. Note any drop in p ower.
b. Press 4
SINGLE
54
RF ON/OFF
5 . Then press 4
RF ON/OFF
5 again (LED on) and note any drop
in power.
c. The power loss noted in step a can be no smaller than the p ower loss noted in step b.
If the step a power loss is greater than the step b power loss by 1 division (  1.5 dB),
increase the A term of the delay adjustment #565 to put the A term at the high end
of the p eak. Then rep eat from step 126.
3-54 Adjustments
Amplifier/Filter Adjustments
Agilent 8360

Agilent Technologies 83640B Specifications

General

Brand	Agilent Technologies
Model	83640B
Category	Portable Generator
Language	English