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The LB5940L 9 kHz to 40 GHz True RMS Power Sensor

 
The LB5940L True RMS Power Sensor is a high-performance RF and microwave power measurement solution that provides reliable, accurate power readings from 9 kHz to 40 GHz. Engineered for both benchtop and automated test environments, this sensor offers accurate RMS detection, capturing average power of CW, modulated, and pulsed signals across a broad dynamic range.With USB connectivity, high-speed data acquisition, and intuitive software support, the LB5940L is ideal for communications, aerospace, defence, and general-purpose RF testing engineers. Its compact form factor and plug-and-play functionality make it a powerful tool for both lab use and field diagnostics.
Recommended for average power measurements on signals of any modulation type including: 802.11ac, gsm, cdma 2000, CDMA (IS-95), TDMA, Multi-Tone, OFDM, CW, QAM and more.

  • Extensive Frequency Coverage: Spanning from 9 kHz to 40 GHz, it supports various RF and microwave applications.

  • Accurate RMS Detection: For comprehensive signal analysis, measures average power of all waveform types—CW, pulsed, and modulated.

  • Wide Dynamic Range: Accurately detects power from -60 to +20 dBm, supporting low-level signals and high-power sources.

  • Fast Measurement Speed: High sampling rate allows real-time monitoring and faster test cycle execution.

  • USB Powered & Controlled: No external meter is required. It connects directly to a PC or laptop via USB for instant setup.

  • Portable & Lightweight: Compact design for use in the field or on crowded lab benches without sacrificing performance.

  • Software Included: Comes with user-friendly software for measurement visualisation, data logging, and automation scripting.

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