Aeroflex 9102 - Sense:trace:math:offset

Chapter 16 SCPI Command Reference
Sense commands
9102 Handheld Spectrum Analyzer Software version 5.31
283
:SENSe:TRACe:MATH:OFFSet
:SENSe:REFLevel
:SENSe:REFLevel:UNIT
Command
Switches math. function for traces A and B off or to Subtraction or to Nor-
malize.
Query
Reads and returns the current setting
.
Example
:SENSe:TRACe:MATH:A SUB
:SENSe:TRACe:MATH:A?
Returns the following string: "SUB"
Syntax
:SENSe:TRACe:MATH:OFFSet <real1>
Parameters
real1
is a floating point real number.
Command
This command sets the trace offset for the subtracted trace (A-B->A trace).
Query
Reads and returns the current setting
.
Example
:SENSe:TRACe:MATH:OFFSet -20
:SENSe:TRACe:MATH:OFFSet?
The value returned in this example is:
"-20".
Syntax
:SENSe:REFLevel <real1>
Parameters
real1 is a floating point real number.
The minimum and maximum value for real1 depend on the unit set by
SENS:REFLevel:UNIT
. When the unit is set to dBm, the minimum value is
-100, the maximum value is 30. When the unit is set to dBuV, the minimum
value is 7, the maximum value is 137
. When the unit is set to dBmV, the min-
imum value is
-53, the maximum value is 77. When the unit is set to dBV,
the minimum value is
-113, the maximum value is 17. The default value for
real1 is
0 dBm.
Command
This command sets the reference level of the 9102 (0 dB line), in the unit
selected with the :SENS:REFLevel:UNIT command.
Query
Reads and returns the current setting.
Example
:SENSe:REFLevel -50
:SENSe:REFLevel?
The value returned in this example is: "-50".
Syntax
:SENSe:REFLevel:UNIT <PredefExpr>
Parameters
PredefExpr is one of the following predefined expressions:
DBM|DBUV|DBMV|DBV|V|MV|UV|MW|UW|
.
Default is DBM.
Command
Defines the unit for the reference level to logarithmic units (dBm, dBμV,
dBmV or dBV) or linear units (V, mV, μV, mW, μW). It also affects the unit in
which results (on the vertical axis) are displayed.
Query
Reads and returns the current setting.