d.
If squegging
o ccurs,
readjust calibration
constant
#131 so
that the
p
o
w
er
dierence
is
2dB
or less
from
a
500
ms
(slo
w)
sw
eep
to
a
0
ms (fast)
sweep.
16.
If
y
ou
ha
v
ean
y instrumen
t
exc
ept
an
83640B/L
and 83650B
/L, con
tin
ue
with
\Band
2
Adjustmen
t." Otherwise,
adjust calibration
constant
#449, D
Amp Clamp
1
as
describ
ed
here, to
protect
the
bridge
detector
from
excessiv
e
p
o
w
er
while in
doubler amp
mo de:
a.
On
the
syn
thesizer,
set:
4
SERVICE
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
Tools
Menu
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
Disable
Doubler
(asterisk
o
)
PO
WER
4
MENU
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Dblr
Amp
Menu
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
Doubler
Amp
Mode
On
(asterisk
on)
b.
Set
the
oscilloscop
e
v
ertical
p
osition
as
necessary
to
displa
y
the
trace.
c.
On
the
syn
thesizer,
set:
SWEEP
4
MENU
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
Manual
Sweep
(asterisk
on)
d.
Using
the
syn
thesizer
rotary
knob,
nd
the
p
eak
of
the
sw
eep
as
displa
y
ed
b
ythe
oscilloscop
e.
e.
If
the p
ow
er lev
el
of
the
p
eak
p
oin
t
is
greater
than
23.5
dBm,
as
displa
y
ed
on
the
p
o
w
er
meter,
decrease
D
Amp
Clamp
1
un
til
the
p
o
w
er
lev
el is
less than
this lev
el.
If
the
p
o
w
er
lev
el
of
the
p
eak
p
oin
t
is
already
less
than
this
lev
el,
set
the
synthesizer
bac
k
to
con
tin
uous
sw
eep
and
decrease
D
Amp
Clamp
1
just
un
til the
p
eak
p
oin
t
b
egins
to
drop
(this
indicates
that
p
o
w
er
to
the
bridge
detector
is
clamp ed).
17. Disable
the doubler,
turn doubler
amp
mo
de
o,
and
return
the
syn
thesizer
to
con
tin
uous
sw
eep
if
y
ou
are
still
in man
ual sw
eep.
Band
2
Adjustment.
18.
On
the
syn
thesizer,
set:
4
ST
ART
5
4
7
5
4
GHz
5
4
STOP
5
4
13.5
5
4
GHz
5
4
PO
WER
LEVEL
5
4
25
5
4
dBm
5
19.
Set
the
oscilloscop
e
v
ertical
p
osition
as
necessary
to
displa
y
the
trace.
20.
Decrease the
synthesizer
p
o
w
er
lev
el
un
til
the
lev
el
of
the
en
tire
trace
on
the
oscilloscop
e
b
egins
to
drop.
21.
Mo
dify
calibration
constan
t
#622,
YTF
Gain;
Band
2,
to
maximize
high end
po
wer.
22.
Mo dify
calibration
constan
t
#632,
YTF
Oset;
Band
2,
to
maximize
lo
w
end
p
o
w
er.
23.
Rep
eat
steps
20 and
21 un
til the
en
tire
band
is
p
eak
ed.
24.
Record
the
v
alue
of
calibration
constan
t
#632,
YTF
Oset; Band
2
.
Step
down
the calibration
constant
in 100
count
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
19
through
22
un
til
it is. Then c
hange calibration constan
t #632 bac
k to the recorded v
alue.
25. On the syn
thesizer, set:
4
POWER LEVEL
54
0
54
dBm
5
26. Adjust calibration constan
t #132, Squegg Clamp 2A, to maximize RF output p o
wer
across the band.
27. If y
ou ha
ve an 83623B or an 83624B
,con
tinue with \Band 3 Adjustmen
t." If y
ou
have
an 83623L, con
tinue with the next step. Otherwise, adjust calibration
constant #132,
Squegg Clamp 2A as described here, to protect the bridge detector from excessivepower:
a. Set the oscilloscop e vertical p osition as necessary to display the trace.
b. On the synthesizer, set:
SWEEP
4
MENU
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Manual Sweep
(asterisk on)
c. Using the rotary knob, nd the p eak of the sweep as displayed by the oscilloscop e.
Agilent 8360 Adjustments
Amplifier/Filter Adjustments
3-43
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