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The U2021XA from Keysight Technologies is a Power Sensor with Frequency 50 MHz to 18 GHz, Power Range -30 to +20 dBm (peak/gated) -35 to +20 dBm (average), Measurements Up to 3500 readings/sec. More details for U2021XA can be seen below.
TVAC compliant USB and LAN Power Sensor
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