2 Operating Information
32 U2000 Series Operating and Service Guide
Power Sweep and Frequency Sweep
The frequency sweep and power sweep features provide measurement
automation between the U2000 Series USB power sensor and the signal
source. This feature reduces the communication path and improves test
time by eliminating the need of PC- instrument communication.
To perform frequency sweep operation, users are required to set the start
frequency, stop frequency and number of step for the signal source. By
default, the step value is set to 0. The number of step ranges from 0 to
2048.
Connect the signal source TRIG OUT to the power sensor TRIG IN. Once
the sweeping operation starts, the signal source will step through each
frequency point within the preset range. Each step will send a TTL signal
to the power sensor notifying it to measure the signal power. Only a
one- way synchronization occurs in this process which is from the signal
source to the power sensor.
A proper dwell time must be set in the signal generator to ensure all the
measurement readings in the power sensor are settled before stepping
through the next frequency point. The same process is applicable to the
power sweep operation.
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