Harmonic
Operation
(Option
002
only)
The
analyzer's harmonic
menu can
be accessed
by
pressing
4
SYSTEM
5
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HARMONIC
MEAS
.
The
harmonic
measurement
mode allows
you to
measure the
second or
third harmonic
as the
analyzer's
source
sweeps
fundamental
frequencies
above 16
MHz. The
analyzer can
make
harmonic
measurements
in
any
sweep
type.
Typical
T
est
Setup
Figure
6-60.
Typical
Harmonic
Mode
T
est
Setup
Single-Channel
Operation
Y
ou
can
view
the
second
or
third
harmonic
alone
by
using
only
one
of
the
analyzer's
two
channels
.
Dual-Channel
Operation
T
o
make
the
following
types
of
measurements
,
uncouple
channels
1
and
2,
and
switch
on
dual
channel.
The
analyzer
measures
the
fundamental
on
one
channel while
measuring the
second or
third
harmonic
on
the
other
channel.
The
analyzer
measures
the
second
harmonic
on
one
channel
while measuring
the third
harmonic
on
the
other
channel.
Using
the
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COUPLE
PWR ON
off
feature
,the
analyzer measures
the fundamental
on channel
1
while
measuring
the
second
or
third
harmonic
in
dBc
on
channel 2.
Using the
N
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COUPLE PWR ON
off
feature, the analyzer couples power between channels 1
and 2. This is useful when you are using the D2/D1
to D2 feature because you can change
fundamental power and see the resultant change in the harmonic power
.
The analyzer shows the fundamental frequency value on the display
. However
, a marker in the
active entry area shows the harmonic frequency in addition to the fundamental. If you use
the harmonic mode
, the annotation
H=2
or
H=3
appears on the left-hand side of the display
.
The measured harmonic cannot not exceed the frequency limitations of the network analyzer's
receiver.
Coupling Power Between Channels 1 and 2
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COUPLE PWR ON off
is intended to be used with the
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D2/D1 toD2 on OFF
softkey.You
can use the D2/D1 to D2 function in harmonic measurements, where the analyzer shows
the fundamental on channel 1 and the harmonic on channel 2. D2/D1 to D2 ratios the two,
Application and Operation Concepts 6-115
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