Agilent Technologies Signal Analyzer N9030a - Manual (Page 658)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Input/Output
retrace, as the analyzer remains tuned to the Center Frequency and does not sweep.
Therefore, in zero-span, the output simply remains live between display updates.
•
If no new sweep is to follow (as in Single sweep mode), the output remains live, and
continues to show the pre-detector data
This function depends on optional capability; the key will be blanked and the command will
generate an “Option not available” error unless you have Option YAV or YAS licensed in your
instrument.
Couplings Screen Video output changes while in FFT Sweeps, so for measurements that use exclusively
FFT Sweeps, or if the user manually chooses FFT Sweeps, the Screen Video output will look
different than it does in swept mode.
Readback Text Screen Video
Backwards Compatibility
Notes See "Backwards Compatibility:" on page 658 , below.
Initial S/W Revision A.04.00
Backwards Compatibility:
The Screen Video function is intended to be very similar to the 8566 Video Output and the PSA
Option 124. However, unlike the PSA, it is not always on; it must be switched on by the Screen
Video key. Also, unlike the PSA, there are certain dependencies (detailed above) – for example,
the Quasi Peak Detector is unavailable when Screen Video is on.
Furthermore, the PSA Option 124 hardware was unipolar and its large range was padded to be
exactly right for use as a Screen Video output. In the X-Series, the hardware is bipolar and has a
wider range to accommodate the other output choices. Therefore, the outputs won’t match up
exactly and users may have to modify their setup when applying the X-Series in a PSA
application.
Log Video (RF Envelope, Ref=Mixer Level)
Selects the analog output to be the log of the video signal. In this mode, the pre-detector data is
output to the Analog Out connector with a Log scaling. The output is referenced to the current
level at the mixer, does not depend on display settings like Reference Level or dB per division,
and it is not influenced by the selected detector or any digital flatness corrections or trace post-
processing (like Trace Averaging), but does change with input attenuation.
The output is designed so that full scale (1 V) corresponds to –10 dBm at the mixer. The full
range (0–1 V) covers 192.66 dB ; thus, 0 V corresponds to –202.66 dBm at the mixer.
Key Path Input/Output, Output Config, Analog Out
Example OUTP:ANAL LOGV
658 Remote Language Compatibility Measurement Application Reference