Correcting
Receiv
er
INPUT
3
Using
a
Calibration
T
able
T
o
obtain
sp ecied
absolute
amplitude
accuracy
for
signals
measured
through
receiv
er
INPUT
3 ,
apply
the
frequency-dep
enden
t
correction
factors
to
signal
amplitude
measuremen
ts.
Because
of
the
preamplier
gain,
signals
will
b e
display
ed
on
the
receiv
er
display
at
an
amplitude
higher
than
the
actual
signal
amplitude.
Figure
1-1
is
a
sample
calibration
table.
The
calibration
data
corrects
for
preamplier
gain,
preamplier
frequency
resp onse,
and
sp ectrum
analyzer
frequency
resp onse
for
b oth
0
dB
and
10
dB
sp ectrum
analyzer
attenuation
after
the
receiv
er
calibration
routine
has
b een
completed.
Calibration
factors
are
pro
vided
ev
ery
50
MHz
from
1.0
GHz
to
22
GHz
for
eac
h
frequency
band.
Calibration
data
is
pro
vided
in
t
w
o
forms
in
the
calibration
table:
gain
in
dB,
and
correction
factor
with
a
sp ecic
reference
lev
el
oset.
1-8
Calibrating
Y
our
Receiv
er
HP
8572A
EMI
Receiv
er
User's
Guide