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Measuring Swept Harmonics (Option 002 Only)
The analyzer has the unique capability of measuring swept second and third harmonics as a
function of frequency in a real-time manner. Figure 2-56 displays the absolute power of the
fundamental and second harmonic in
dBm.
Figure 2-57 shows the second harmonic’s power
level relative to the fundamental power in
dBc
Follow the steps listed below to perform these
measurements.
....
.:.::;.>>;.;.;/
:,::
cf
p.
.‘y.‘::::
$;,
,..
1.
Press
t-1
I
~~~~~~~~~s~~;!~,~~,~~);‘,
;E~~:‘!&$#~@
4:
to
mewme
the
power
for
.:::.:
. . . . . ..T .
..i
>>..l.......
i
ii.
. . . . .../.
;:
../i
the fundamental frequencies.
.,.......,
. .
. . .
,.....
.,.,.,.,.,*
..,.,
;
/
/
,:,:.:..
_
. . . . . .
.,....
2. Press
@GZQ
Lj]
::~~~~~~~~;,
;&
to measure the power for the harmonic frequencies.
3. Set the start frequency to a value greater than 16 MHz.
.,.
_
_
.,.,,
::.::
4.
~~~~
(MenuJ
md
seled
~~~~.~,~~~~~~~~.
Uncoupling
the
channels
flows
you
to
have
the
separate sweeps necessary for measuring the fundamental and harmonic frequencies.
5.
Press
$m
md
sele&
~~~~~~~~~~~~.‘..
Coupling
the
channel
power
sows
you
I/ r
.
to maintain the same fundamental frequency power level for both channels.
._
7.
Press
m
and
select
~~~~~~~~~~~.
./.i.i
.
. . .
. .
..A...2
.
. . . . .
i..
.
. . . . .
. . .
.W.~.~...~.>.~.~
.._....
.:......
8. Press
@iGiG)
and position marker to desired frequency.
CHl
B I og
MFIG
5
dB/
REF 0 dB 1 7.6726 dB
T
CHl
CH2
1
I I
I I
I
STf3RT
16.000 000 MHz
STOP 1 000. 000 000 MHz
B
I og
MFlG
S
dB/
REF 0 dB
1: -7.1925 dB
2nd
H
rmon
c PO et-
1
SQB.
$00
EEjO
MHz
I
I I
I I I I
I I
H-2
CH2
START
16.000 000 MHz
STOP 1 000. 000 000 MHz
Figure 2-56. Fundamental and
2nd
Harmonic Power Levels in dBm
6.
Press
(GJ
~~~~~:~~
~$jj$$@Z$.
You can view both the fundamental power and
h-onic
po~~~~~~~~~~~~~~~~time.
(Refer
to
Figure
2-56.)
:.:<:+
;:~ii,::iiz<sg
..,,
,‘..,’
.7.::.;;
::: .:.::::
:.:.:
10.
Press
@iiZQ
~Displaij
:$EJQ&
and select
~~a~~~~~~~~~~.
This display mode lets you see
the relationship between the fundamental and second or third harmonic in dl3c (Refer to
Figure 2-57.)
Making
Meaeurements
2-81