6 List Sequence Measurements
Save
Line
#
Type of field
Example
Notes
frequency values in the file
7
Antenna Unit
Antenna Unit,None
If omitted leaves the Antenna unit
unchanged. The amplitude unit in the
Antenna Unit field is a conversion factor
that is used to adjust the Y Axis Units of
the current mode, if the mode supports
Antenna Units. For more details on
antenna correction data, refer to the
Input/Output,Corrections key description.
Allowable values: dBuv/m, dBuA/m, dBG,
dBpT, None
8
Freq Interpolation
Frequency Interpolation,Linear
if omitted leaves the Freq Interpolation
unchanged. Allowable values: Linear,
Logarithmic
9
Bias value in mA
Bias,0.00
If omitted leaves the Bias value
unchanged (added as of A.08.50)
10
Bias State
Bias State,On
If omitted leaves the Bias State
unchanged. Allowable values: On, Off
(added as of A.08.50)
11
Overlap, two values, Freq1
and Freq2, separated by
commas.
Overlap,33500,40000
Uses Freq Unit from line 6. Thus, in this
example Freq1=33.5 GHz, Freq2= 40.0
GHz (see note below). If omitted leaves
the overlap unchanged (added as of
A.08.50)
12
DATA marker
DATA
Corrections data begins in the next line
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
506
Sequence Analyzer User's & Programmer's Reference
