Operating instructions

CALCulate:MARKer Subsystem R&S ESCI
1166.6004.12 6.54 E-1
CALCulate<1|2>:MARKer<1 to 4>:FUNCtion:TOI[:STATe] ON | OFF
This command initiates the measurement of the third-order intercept point.
A two-tone signal with equal carrier levels is expected at the RF input of the instrument. Marker 1
and marker 2 (both normal markers) are set to the maximum of the two signals. Delta marker 3 and
delta marker 4 are positioned to the intermodulation products. The delta markers can be modified
sperately afterwards with the commands CALCulate:DELTamarker3:X and
CALCulate:DELTamarker4:X.
The third-order intercept is calculated from the level spacing between the normal markers and the
delta markers.
The numeric suffix <1 to 4> of :MARKer is irrelevant for this command.
Example: "CALC:MARK:FUNC:TOI ON" 'Switches on the measurement of the
third-order intercept in screen A.
Characteristics: *RST value: OFF
SCPI: device-specific
Mode: A
CALCulate<1|2>:MARKer<1 to 4>:FUNCtion:TOI:RESult?
This command queries the third-order intercept point measurement in the indicated measurement
window.
A complete sweep with synchronization to sweep end must be performed between switching on the
function and querying the measured value to obtain a valid query result. This is only possible in
single sweep mode.
The numeric suffix <1 to 4> of :MARKer is irrelevant of this command.
Example: "INIT:CONT OFF" 'Switches to single-sweep mode.
"CALC:MARK:FUNC:TOI ON" 'Switches the intercept measurement in
'screen A.
"INIT;*WAI" 'Starts a sweep and waits for the end.
"CALC:MARK:FUNC:TOI:RES?" 'Outputs the measured value of screen A.
Characteristics: *RST value: -
SCPI: device-specific
Mode: A
This command is only a query and therefore has no *RST value.
CALCulate<1|2>:MARKer<1 to 4>:FUNCtion:CENTer
This command sets the receiver or center frequency of the selected measurement window equal to
the frequency of the indicated marker.
If marker 2, 3 or 4 is selected and used as delta marker, it is switched to the marker mode.
Example: "CALC:MARK2:FUNC:CENT" 'Sets the receiver frequency to the frequency of
'marker 2.
Characteristics: *RST value: -
SCPI: device-specific
Mode: R, A-F
This command is an "event" and therefore has no *RST value and no query.