15 Programming Examples
356 U8480 Series Programming Guide
Single trigger
or
-> SYST:PRES DEF // Presets the U8480 Series.
-> FREQ 1000MHz // Sets the frequency to 1000 MHz.
-> CAL:ZERO:AUTO ONCE // Performs zeroing.
-> *OPC? // Waits for the operation to complete.
<- 1 // Returns a 1 when zeroing has completed.
-> INIT:CONT OFF // Sets the U8480 Series to the Single Trigger
mode.
It is strongly advisable to perform zeroing on the U8480 Series for power
measurement levels below –30 dBm for accurate measurements. During the
zeroing process, the RF input signal must be switched off or the
device-under-test disconnected from the U8480 Series.
-> INIT // Initializes the measurement.
-> FETC? // Queries the measurement results.
In the Single Trigger mode, INIT must be executed before FETC?.
-> MEAS? // Reads the measurement results.
In the Single Trigger mode, MEAS? can be used without executing INIT.