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304 Chapter 5
Language Reference
SOURce Subsystem
EMC E7405A: 8 dB
Range: EMC E7401A: 0 dB to 60 dB in 10 dB steps
EMC E7402A: 0 dB to 56 dB in 8 dB steps
EMC E7403A: 0 dB to 56 dB in 8 dB steps
EMC E7404A: 0 dB to 56 dB in 8 dB steps
EMC E7405A: 0 dB to 56 dB in 8 dB steps
Default Unit: dB
Front Panel
Access:
Source, Attenuation Auto Man
Automatic Source Attenuation
:SOURce:POWer:ATTenuation:AUTO OFF|ON|0|1
:SOURce:POWer:ATTenuation:AUTO?
Selects if the source output level attenuator will be set automatically, or manually.
CAUTION Power-level sensitive devices connected to the tracking generator output may be
accidentally damaged. This is because the actual source amplitude may be greater
than the amplitude indicated on the analyzer when the source attenuation is set
manually.
When source attenuation is set to manual
(:SOURce:POWer:ATTenuation:AUTO OFF), source amplitude may be set to
values beyond actual output levels to accommodate the full range of analyzer
capabilities. Therefore, exercise caution when connecting a power-level sensitive
device to the tracking generator output.
Factory Preset
and *RST: On
Front Panel
Access:
Source, Attenuation Auto Man
Sets the Output Power
:SOURce:POWer[:LEVel][:IMMediate][:AMPLitude] <ampl>
:SOURce:POWer[:LEVel][:IMMediate][:AMPLitude] UP|DOWN
:SOURce:POWer[:LEVel][:IMMediate][:AMPLitude]?
Specifies the source output power level. Use :SOURce:POWer:SWEep to set the
change in power level across the sweep. Also see :SOURce:POWer:STARt and
OUTPut[:STATe].