Agilent Technologies HP 8566B Dokumentacja Pobierz pdf (Strona 93)

16. Harmonic and Intermodulation Distortion Test

18.

Press

@ZZi%J

on the analyzer. Key in the following:

&ENTER

FREQUENCY_)

......................................

7.2

GHz

CFREQUENCY

SPAN)

.........................................

100

kHz

19.

20.

Press MARKER (PEAK SEARCH),

(GiCCXF].

Set (FREQUENCY

SPAN)

to 10

kHz.

Press MARKER [PEAK SEARCH),

I-),

[

MKR/A+

STP SIZE .

21.

Adjust synthesized sweeper output level to place peak of signal

trace at the reference level line.

22.

23.

24.

Press DISPLAY LINE

CENTER]

and key in -80

dBm.

Activate (CENTER FREQUENCY) and press

to tune to the second

harmonic of the input signal.

Key in the following:

(REFERENCE LEVEL]

.......................................

-20

dBm

[FREQUENCY SPAN]

...........................................

kHz

25.

The second harmonic should be below the display line

(<-

100

dBc).

Intermodulation 26.

Distortion

Second harmonic level of 7200 MHz

dBc

Set both synthesized sources as follows:

RANGE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 10 dBm

METER MODE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEVEL

RF OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

ALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

FM DEVIATION MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

27. Connect equipment as shown in Figure 2-29 with “output”

of power divider connected to power sensor. The FREQ

REFERENCE switch on the rear panel of the analyzer should be

set to INT and the FREQ REFERENCE switch on both synthesized

source rear panels should be set to EXT.

28. Set one synthesized source for an output frequency of 2099.500

MHz, the other to 2100.500 MHz.

29. Set one synthesized source RF OUTPUT switch to ON and adjust

the output power level for a power meter indication of -25.00

dBm

f0.20

dB.

Return the RF OUTPUT switch to the OFF setting.

2-66

Performance Tests

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