Agilent Technologies Signal Analyzer N9030a - Manual (Page 1041)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
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Lines 2 through 5 can be empty but must appear in the file. Lines 6 through 11 are optional, the
lines can be left out of the file altogether.
The Overlap row and the two Bias rows apply only to external mixing. Both are read-only, they
are never written by the analyzer. The only way to insert or modify these rows is to edit the file
with a text editor or a spreadsheet editor. These rows are intended for use by mixer
manufacturers, as they allow the manufacturer to insert data about how the mixer corrections
were generated and how they should be applied. The Bias rows allow you to specify whether to
turn Bias on or off when the Correction is turned on and to specify a Bias value (turning off the
Correction does not change the Bias, but turning it back on again sets it to the value specified in
the file). The Overlap row allows you to specify an overlap region in which two different
corrections may be applied. It is expected that in the corrections data itself, there will be TWO
corrections values exactly at Max Freq, otherwise Overlap is ignored. The way the overlap is
processed is as follows: if at any given time the current analyzer Start Freq is greater than Freq 1
and lower than Freq 2, and the current Stop Freq is greater than Freq 2, extend the first
correction point at or above Freq 2 down to Freq 1, rather than using the correction data between
Freq1 and Freq2.
The Antenna Unit row can only be used in Correction register 1, because there can only be one
setting for Antenna Unit at any given time. If a Correction whose Antenna Unit is set to anything
but None is loaded into any Correction register but 1, an error is generated (Mass storage error;
Can only load an Antenna Unit into Correction 1). When a correction file is saved from any
Correction register but 1, Antenna Unit is always written as None.
Similarly, the Bias rows can only be used in Correction register 1, because there can only be one
setting for Bias at any given time. If a Correction file with a Biasor Bias State row is loaded into
any Correction register but 1, an error is generated: Mass storage error; Can only load Bias
Settings into Correction 1
The data follows the DATA row, as comma separated X, Y pairs; one pair per line.
For example, suppose you have an Antenna to correct for on an N9020A version A.02.06 and the
correction data is:
0 dB at 200 MHz
17 dB at 210 MHz
14.8 dB at 225 MHz
Then the file will look like:
Amplitude Correction
"Correction Factors for 11966E"
"Class B Radiated"
Remote Language Compatibility Measurement Application Reference 1041