Agilent Technologies PSG Bedienerhandbuch Seite 296

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Seitenansicht 295
Command Reference
Power Subsystem ([:SOURce])
Chapter 4282
:POWer:ALC[:STATe]
Supported All
[:SOURce]:POWer:ALC[:STATe] ON|OFF|1|0
[:SOURce]:POWer:ALC[:STATe]?
This command enables or disables the automatic leveling control (ALC) circuit.
*RST 1
Key Entry
ALC Off On
Remarks An alternative to setting the ALC to OFF (0), is to set the ALC to a
narrow bandwidth.
The purpose of the ALC circuit is to hold output power at the desired
level in spite of drift due to temperature and time.
:POWer:ATTenuation
Supported All with Option 1E1
[:SOURce]:POWer:ATTenuation <val><unit>
[:SOURce]:POWer:ATTenuation?
This command sets the amount of attenuation at the RF output.
*RST
+
115
Key Entry
Set Atten
Remarks Use this command when the automatic attenuation mode is set to
OFF (0). Refer to “:POWer:ATTenuation:AUTO” on page 283 for
choosing the attenuator mode.
The output power is the ALC level minus the attenuator setting. Refer
to “:POWer:ALC:LEVel” on page 280 for setting and determining the
ALC level.
Choices ON OFF 1 0
Choices <val><unit>: 0DB 5DB 15DB 25DB 35DB 45DB 55DB
65DB 75DB 85DB 95DB 105DB 115DB
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