Rohde & Schwarz FPL1000 Manuel D'utilisation page 724

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Remote commands exclusive to TOI measurements

CALCulate<n>:MARKer<m>:FUNCtion:TOI[:STATe]

CALCulate<n>:MARKer<m>:FUNCtion:TOI:SEARchsignal ONCE

CALCulate<n>:MARKer<m>:FUNCtion:TOI:RESult?

CALCulate<n>:MARKer<m>:FUNCtion:TOI:RESult:MAXimum?

CALCulate<n>:MARKer<m>:FUNCtion:TOI:RESult:MINimum?

CALCulate<n>:MARKer<m>:FUNCtion:TOI[:STATe] <State>

This command initiates a measurement to determine the third intercept point.

A two-tone signal with equal carrier levels is expected at the RF input of the instru-

ment. 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 prod-

ucts. The delta markers can be modified separately afterwards with the

CALCulate<n>:DELTamarker<m>:X

The third-order intercept is calculated from the level spacing between the normal mark-

ers and the delta markers.

CALCulate<n>:MARKer<m>:FUNCtion:TOI:SEARchsignal ONCE

This command initiates a search for signals in the current trace to determine the third

intercept point.

Manual operation:

CALCulate<n>:MARKer<m>:FUNCtion:TOI:RESult?

This command queries the results for the third order intercept point measurement.

To get a valid result, you have to perform a complete measurement with synchroniza-

tion to the end of the measurement before reading out the result. This is only possible

for single sweep mode.