Agilent Technologies 11867A? Manual de Serviço descarregar pdf (Página 72)

74 Chapter 5

Spectrum Analyzer

Making a Basic Measurement

Spectrum Analyzer

Viewing a Signal

1. Select the spectrum analyzer mode. Press Mode, Spectrum Analyzer.

2. Preset the analyzer: Press Mode Preset.

3. Connect the analyzer’s rear panel REF OUT (10 MHz) to the

front-panel input.

Setting Center Frequency, Span, Attenuation, and Reference Level.

1. Set the center frequency to 30 MHz: Press FREQ Channel, Center

Frequency

, 30, MHz.

2. Set the Span to 50 MHz: Press SPAN X Scale, 50, MHz.

3. Adjust the attenuation to 20 dB: Press AMPTD Y Scale, Elec Atten, 20,

dB.

4. Adjust the reference level (if the peak of the 10 MHz signal

component is not visible): Press

AMPTD Y Scale, Ref Level, 10, dBm.

For more information on this, refer to “Changing Reference Level” on

page 75.

The 10 MHz reference signal spectrum appears on the display, as

shown in Figure 5-1.

Figure 5-1 10 MHz Internal Reference Signal and Associated Spectrum

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 213 214

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Agilent Technologies 11867A? Manual de Serviço Página 72