Agilent Technologies 83620A - Page 108

2.
T
o
ac
hiev
e
p
eak
p
o
w
er,
initiate
auto
tracking
on the
synthesizer
as
follo
ws:
terminate
the RF
output with
ago
od
50
imp
edance
matc
h
suc
h
as
a
10
dB
atten
uator
or
a
p
o
w
er
sensor
(not
necessary
for
syn
thesizers
with
a
step
atten
uator).
Press:
4
USER
CAL
5
N
N
N
N
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NN
N
N
N
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N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
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NN
N
N
N
N
Tracking Menu
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
N
Auto Track
(asterisk on)
W
ait
for
the
syn
thesizer to
complete auto
tracking
before
con
tin
uing
to
the
next step.
3.
Connect
the
equipmen
t
as
sho
wn
in
Figure
2-8
.
4.
On
the
syn
thesizer,
press:
4
ALC
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Leveling
Point
ExtDet
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
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N
N
N
N
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N
N
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N
N
N
N
N
N
N
N
N
N
Coupling
Factor
4
0
5
4
dB
5
4
PO
WER LEVEL
5
4
0
36
5
4
dBm
5
5. Maxim
um
accuracy
for
the
HP
3456A
is
obtained
b
y
increasing
the
D
VM
displa
y
resolution
and the
num
ber
of
in
tegration
cycles.
On
the
HP
3456A,
set:
4
100
5
4
STORE
5
4
N
CYC
INT
5
4
6
5
4
STORE
5
4
N
DIG
DISP
5
Set
the
D
VM
to
measure
DC
v
olts.
6.
Increase
the
syn
thesizer
p
o
w
er
lev
el
un
til
the
LOW
UNLVLED
message turns
o. (If
it
is
already
out,
lea
v
e
the
p
o
w
er
lev
el
at
0
36
dBm.)
7.
On
the
syn
thesizer,
press:
4
CW
5
4
10
5
4
GHz
5
Record
the
D
VM
reading
on
the
test
record
and
compare the
reading to
the
sp
ecication.
Note
If
the
UNLVLED
message
turns
on
b
efore
reac
hing +4
dBm,
set
the
stop
frequency
to
a
lo
w
enough
frequency
where
the
specied
output p
ow
er is

4
dBm.
If
y
ou
don't
get
an
unleveled message, disconnect
the BNC tee temp orarily to
make sure that the unlev
eled message turns on. Then reconnect
the equipmen
t and con
tinue with the
test.
8. Press
4
POWER LEVEL
5 . Increase the syn
thesizer po
wer lev
el un
til the
UNLVLED
message turns on. Decrease po
wer just un
til the message
go es out.
9. Record
the DVM reading on the test record and compare the reading to the
specication.
2-38 Performance Tests
External Leveling
HP 8360
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