1138
Source (Internal)
RF PowerAllows you to adjust the power level of the source using the numeric keypad, step keys, or RPG. Pressing any digit, 0 through 9, on the numeric keypad brings up the unit terminator.Please refer to the “RF Power Range ” on page 1139 table below for the valid ranges.
Notes: The sub-menu under this button is for independent mode and has no effect on
“List Sequencer” on page 1219. If the “Sequencer” on page 1219 is set to ON,
the list sequencer controls the source output and this key will be grayed-out on
front panel to indicate out-of-scope. When you set “Sequencer” on page 1219
to Off will make source leave list sequencer and this button will be black out.
Initial S/W Revision: A.05.00
Key Path: Source, Amplitude
Remote Command: :SOURce:POWer[:LEVel][:IMMediate][:AMPLitude] <ampl>
:SOURce:POWer[:LEVel][:IMMediate][:AMPLitude]?
Example: SOUR:POW –100 dBm
Notes: Amplitude corrections can be specified for use with the source. In the event of
amplitude corrections being applied, the valid ranges for the RF power do not
change dependant on the current amplitude correction setting. If the
combination of RF power + amplitude correction is higher or lower than the
source output range, the Source Unleveled bit is set and the “Source
Unleveled” indicator will appear on status panel to indicate that the source
cannot maintain the output power that has been requested.
When signal generator is unable to maintain the requested output level, the
“Source Unleveled” indicator will appear on status panel. When the source
output setting is restored to the normal range, the “Source Unleveled” is
removed from status panel.
Internal source has list sequence mode, which comprises of several steps
which contain separate output power, frequency and waveform etc. When the
source list sequence playing is complete, the last step keeps playing, and user
can use this command to change the list sequence last step’s output power.
{A.12.50} The multiport adapter RFIO TX ports and GPS ports cannot ensure
power accuracy when power setting is lower than -130dBm, this power setting
value is defined by the sum of RF Power setting and related amplitude
correction value. But user settable value could be lower than this limit. When
application detected there exists power setting lower than -130dBm on MPA
RFIO TX ports, then popup warning message. When application detected
there exists power setting lower than -130dBm on MPA GPS ports, then
popup warning message. This is only warning message, and check is
performed when RF is ON.
Notes: The Min and Max value here defined UI settable amplitude range. This range
is larger than actual amplitude range with level accuracy defined in spec.