HP E6380-90019 Manual do Utilizador descarregar pdf (Página 133)

Chapter 5 133

Analog Measurements - Screens and Control Fields

FM Coupling Freq (marker)

FM Coupling

This field alters the FM modulator to allow DCFM from internal and

external modulation sources. This field also selects ac or dc coupling

between the RF generator’s frequency modulator and the ANALOG

MODULATION IN connector.

Operating Considerations

This field should be set to DC whenever the AFGen2 To field is set to FM;

this provides better modulation response at low data rates.

Screens on which this field is displayed

RF GENERATOR

Freq (marker)

Marker frequency displays the frequency at the marker’s present

position on the spectrum analyzer.

Screens on which this field is displayed

SPEC ANL: all control menus

Figure 5-1 Freq and Lvl Display Fields

Main Menu

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HP E6380-90019 Manual do Utilizador Página 133