HP 8568B manual Center Frequency 1 MHZ, Marker Peak Search to position

15. Spurious Responses Test

24.On the frequency synthesizer, readjust the signal amplitude as necessary to position the peak of the displayed 29.99 MHz signal at the top CRT graticule line.

25.On the spectrum analyzer, key in MARKER @,

(CENTER FREQUENCY) 30.01 MHz, MARKER (PEAK SEARCH) to position a second marker at the peak of the 30.01 MHz third-order intermodulation product. The response should be below the display line (>70 dB below the input signals).

TO1 Distortion (10 kHz separation @ 30 MHz) dBm

26.On the spectrum analyzer, key in [CENTER FREQUENCY) 29.98 MHz, MARKER [PEAK SEARCH) to position a second marker at the peak of the 29.98 MHz third-order intermodulation product. The response should be below the display line (>70 dB below the input signals).

TO1 Distortion (10 kHz separation @ 30 MHz) dBm

27.On the synthesized sweeper, press (POWER LEVEL] and decrease the amplitude of the 30 MHz signal by 13.0 dB from the current setting.

28.On the frequency synthesizer, key in [FREQUENCY] 29 MHz,

(AMPLITUDE] and then decrease the amplitude of the 29 MHz signal by 13.0 dB from the current setting.

29.Set the controls of the spectrum analyzer as follows:

CENTER FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 MHz

FREQUENCY SPAN . . . . . . . . . . . . . . . . . . . . . . . . . ,500 Hz

REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -33 dBm

MARKER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

30.On the spectrum analyzer, key in DISPLAY LINE [ml -105 dBm, MARKER CPEAK SEARCH) to position a marker on the peak of the displayed 29 MHz signal.

31.On the frequency synthesizer, adjust the signal amplitude for a marker indication of -33.0 dBm.

32.On the spectrum analyzer, key in CCENTER FREQUENCY) 30 MHz, MARKER [PEAK SEARCH) to position a marker on the peak of the displayed 30 MHz signal.

33.On the synthesized sweeper, adjust the signal power level for a marker indication of -33.0 dBm (total signal power of -40 dBm at the input mixer with 10 dB of input attenuation).

34.On the spectrum analyzer, key in MARKER a,

[CENTER FREQUENCY) 1 MHZ, MARKER [PEAK SEARCH] to position

a second marker at the peak of the 1 MHz second-order intermodulation distortion product. The response should be below the display line (>75 dB below the total input power).

SO1 Distortion (1 MHz separation @ 30 MHz) dBm

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