Keysight E6640A, Measurement Applications User & Programmer Reference

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14 QPSK EVM Measurement
Source
when the ARB memory is full, the copy ceases, and an error is generated.
If you specify a directory over SCPI, but the directory does not exist, an error is generated.
If the ARB is ON, a user then loads or deletes file to ARB memory, the playing waveform segment
may not keep phase continuity during the ARB memory operation. The waveform will be replayed
after the ARB operation is finished.
Initial S/W Revision A.05.00
Change Directory...
Allows you to change the currently selected directory on the hard disk. Pressing this key opens a standard
windows change directory dialog allowing you to select the new directory of interest.
The current directory is used for manually loading waveform segments into ARB memory for playback, and
as a search location for waveform segments that are required to be loaded into ARB memory for playback
of a waveform sequence or a list sequence.
Key Path
Source, Modulation Setup, ARB, Select Waveform, Segments on Hard Disk
Notes No remote command, SCPIfront panel only.
Initial S/W Revision A.05.00
Default Directory...
Allows you to change the default directory. It is used as a search location for waveform segments that are
required to be loaded into ARB memory for playback of a waveform sequence, and as a search location for
selecting waveforms using SCPI.
Key Path
Source, Modulation Setup, ARB, Select Waveform, Segments on Hard Disk
Remote Command :SOURce:RADio:ARB:DEFault:DIRectory <string>
:SOURce:RADio:ARB: DEFault:DIRectory?
Example :SOUR:RAD:ARB:DEF:DIR “D:\ArbFiles”
:SOUR:RAD:ARB:DEF:DIR?
State Saved Persistent, survives a power cycle and a preset but not saved in the instrument state
Initial S/W Revision A.05.00
Segments in ARB Memory
Allows you access to the sub-menus for managing the files within ARB memory.
Key Path
Source, Modulation Setup, ARB, Select Waveform
Initial S/W Revision A.05.00
W-CDMA & HSPA Measurement Applications Reference 2505