HP 8753E manual Measuring Swept Harmonics Option 002 Only, Fundamental frequencies

Models: 8753E

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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.

 

 

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1. Press t-1 I ~~~~~~~~~s~~;!~,~~,~~);‘,

;E~~:‘!&$#~@ 4: to mewme the power for

 

 

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i ii. . . . . .../. ;: ../i

the fundamental frequencies.

 

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2. Press @GZQ Lj] ::~~~~~~~~;, ;& to measure the power for the harmonic frequencies.

3. Set the start frequency to a value greater than 16 MHz.

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Uncoupling the channels flows you to have the

4. ~~~~ (MenuJ md seled ~~~~.~,~~~~~~~~.

separate sweeps necessary for measuring the fundamental and harmonic frequencies.

5. Press $m md sele& ~~~~~~~~~~~~.‘.. Coupling the channel power sows you

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to maintain the same fundamental frequency power level for both channels.

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7. Press m and select ~~~~~~~~~~~.

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8. Press @iGiG) and position marker to desired frequency.

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1

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5 dB/ R E F 0 dB

1 7 . 6 7 2 6 dB

I

I

I

I

I

CHl

STf3RT

1 6 . 0 0 0

0 0

0

M H z

 

 

 

S T O P 1

 

0 0 0 . 0 0 0 0 0 0

M H z

CH2

B

I og MFlG

 

 

S dB/

REF

0 dB

 

1 :

- 7 . 1 9 2 5 dB

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd H rmon c PO et-

 

 

 

 

 

 

 

1

SQB. $00 EEjO

M H z

 

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I

 

 

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H-2

CH2 S T A R T

1 6 . 0 0 0 0 0 0 M H z

S T O P 1 0 0 0 . 0 0 0 0 0 0 M H z

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

Page 132
Image 132
HP 8753E manual Measuring Swept Harmonics Option 002 Only, Fundamental frequencies