Agilent Technologies 4395A - Page 252

Tracking
Unstable
Harmonics
Using the
Search Track
Function
Tracking
Unstable
Harmonics
Using
the
Search
Track
Function
1.
Set the
frequency range
to display
the carrier
and the
harmonics.
2.
Press
4
Sea
rch
5
and
choose
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
SEARCH:
PEAK
to
move
the marker
to the
peak.
3.
Press 4
Ma
rk
er
5 and
choose
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
1MODE MENU
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
TRACKING 1MKR
to set
up the
marker as
a reference
1marker
that
can
move
with
the
carrier
.
4.
Press
4
Sea
rch
5
and
toggle
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
SEARCH
TRK
on
OFF
to
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
ON
off
to
cause
the
search
function
to
be
activated
every
time
the
4395A
performs
a
sweep
process
.
5.
Choose
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
N
N
N
MULTIPLE PEAKS
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
PEAKS RIGHT
to
search
for
the
carrier
and
harmonics
under
the
search
track.
6.
Press
4
Utilit
y
5
.
Then
toggle
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
MKR
LIST
on
OFF
to
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
ON
off
.
Even
if
the
frequency
of
a
carrier
changes
,
the
4395A
automatically
tracks the
carrier and
the
harmonics
at
the
end
of
the
sweep
.
Then
the
analyzer
lists
the dierence
between the
carrier
and
the
harmonics
in
the
lower
half
of
the
screen.
If
you
wish
to
ignore
the
peaks
other
than
the
harmonics
,
you
can
use
the
peak threshold.
F
or
more
information,
See
\T
o
Dene
the
P
eak
for Search
(To
Ignore Unnecessary
P
eaks)".
Carrier
Frequency: 50
MHz 55
MHz
Figure
8-29.
Tracking
Unstable
Harmonics
Using
Search
Track
8-50 Analyzing the Measurement Results