Agilent Technologies 4294A Manual de Serviço descarregar pdf (Página 38)

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38 Chapter 3

Setting Measurement Conditions

Setting Measurement Signals

Setting the oscillator

To set an oscillator level, use the commands given below.

• “POWMOD” on page 404

• “POWE” on page 403

Either a voltage or a current can be used to set the oscillator level. First, specify whether

you use voltage or a current with the

“POWMOD” command and then set a level with the

“POWE” command.

To set the oscillator frequency during oscillator level sweep and dc bias sweep, use the

command given below.

• “CWFREQ” on page 285

Setting a dc bias

To turn on or off the dc bias output or to select an output mode, use the commands given

below.

• “DCO” on page 291

• “DCMOD” on page 291

To set a dc bias level, use the commands given below.

• “DCI” on page 290

• “DCV” on page 295

To set a dc bias output range, use the command given below.

• “DCRNG” on page 294

If the dc bias output is either in constant voltage mode or in constant current mode, use the

commands given below to set the limit of the current output or the voltage output. In both

constant voltage mode and constant current mode, set the limit of output level in terms of

voltage.

• “MAXDCV” on page 347

• “MINDCV” on page 350

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