4.
Po
wer
Flatness
Adjustment
Calibration for
standard instrumen
t
Description
Note
If
Option 001
is installed
in y
our instrumen
t,
p
erform
the
\Step
A
tten
uator
Flatness"
adjustmen
t.
This
adjustmen
t
zeros
the
digital
ALC
arra
y
and
measures
the
po
wer
from the
RF output.
The
po
wer
is measured
ev
ery
10
MHz
in
lo
w
band
and
ev
ery
100
MHz
in
high
and
millimeter
bands.
The
calibration
constan
ts
are
adjusted
to
ac
hiev
e
a
at
output.
The
calibration
factors
for
the
p
o
w
er
sensor
m
ust
b
e
added
to
the program.
Refer to
the
utilit
y
,
\4.
P
o
w
er Sensor
Conguration and
Calibration F
actor
File",
if
necessary
.
The
follo
wing
test
equipmen
t
is
required
for
this
adjustmen
t.
No
substitutions are
allo
w
ed.
(The
test
setup
is
giv
en in
the
soft
w
are.)
T
est Equipment
Required
Instrumen
t
HP/Agilen
t
Model
Num
b
er
P
o
w
er
Meter
438A
P
o
w
er
Sensor
(100
kHz to
4.2
GHz)
8482A
P
o
w
er
Sensor
(50
MHz
to
26.5
GHz)
8485A
Po
wer
Sensor
(50
MHz
to
50
GHz)
1
8487A
10
dB
A
tten
uator
(DC
to
26.5
GHz)
2
8493C
1
F
or
40
GHz
syn
thesizers
only
.
2
For
high p
o
w
er
syn
thesizers
only
.
Procedure
Select
the
p
o
w
er
atness
adjustmen
t
and
enter
y
our
p
o
w
er
sensor
data
b
y
p
erforming the
following steps.
Note
If the po
wer sensor data w
as added previously
, and is still
current, skip the
following steps and run the
test.
1. Select the
NNNNNNNNNNNN
NN
HELP
softkey to access the p o
wer sensor conguration and
calibration men
us.
2. Select p ower meter conguration.
3. Select the sensor to edit.
4. Enter the power sensor conguration data (follow the prompts on the display).
5-14 Automated Tests Agilent 8360