These
easily-p
erformed
tests
can
determine
if
a
signal
is
narrowband
or
broadband
relativ e
to
the
sp ectrum
analyzer
bandwidth:
T
uning
T
est
T
une
a
w
a
y
6
BWi
and
observ
e
c
hanges
in
the
signal's
display
ed
amplitude.
PRF
T
est
Use
the
sw
eeptime
con
trol
(or
span
or
resolution
bandwidth)
to
determine
if
the
signal
is
b eing
display
ed
in
line
mo
de
or
pulse
mo
de.
P
eak
vs.
Av
erage
Select
a
video
bandwidth
three
to
ten
times
narrow
er
than
the
resolution
bandwidth
selected;
observ
e
smo
othing
of
broadband
signals.
Bandwidth
T
est
Increase
or
decrease
the
resolution
bandwidth
and
observ
e
amplitude
c
hanges
of
the
signals.
Changes
in
amplitude
indicate
that
the
signal
is
a
broadband
relativ e
to
the
receiv
er
bandwidth.
Figure
4-4.
Methods
for
Narro
wband
and
Broadband
Analysis
4-4
Making
Typical
Measurements
HP
8572A
EMI
Receiv
er
User's
Guide
