The LB5912A 1 MHz to 12.5 GHz True RMS Power Sensor

The LB5912A True RMS Power Sensor is engineered for precise, high-performance RF power measurements across a broad frequency range of 1 MHz to 12.5 GHz. It is the go-to solution for professionals in wireless communication, RF testing, and microwave system development who demand accuracy, reliability, and efficiency. With true RMS detection, the sensor measures the average power of all types of signals—including CW, modulated, and pulsed waveforms—ensuring dependable results in diverse signal environments.Compact, USB-powered, and designed for seamless integration, the LB5912A is ideal for both benchtop and field-based test systems. From R&D environments to production lines, this power sensor brings lab-grade performance in a portable form.

The LB5912A is a high accuracy, platform independent RF & Microwave Power Sensor for general purpose average power or True RMS and scalar measurements. The sensor features exceptionally fast measurement speed, a broad dynamic range, and the widest set of options for programmatic and embedded applications in the industry. LadyBug’s feature rich Power Meter Application is provided with each sensor. Time domain trace visibility is included and aids in setting markers. The sensor is useful in research & development, manufacturing & service applications including radar, satellite and telecommunications.

Recommended for average power measurements on signals with any modulation type including: 802.11ac, gsm, cdma 2000, CDMA (IS-95), TDMA, Multi-Tone, OFDM, CW, QAM and more.

Broad Frequency Coverage: Operates across 1 MHz to 12.5 GHz, suitable for a wide array of RF and microwave applications.

True RMS Detection: Delivers accurate average power readings for all signal types, including digitally modulated and pulsed RF signals.

Wide Dynamic Range: Measures signals from -60 dBm to +20 dBm, supporting both low and high-power scenarios.

Plug-and-Play USB Interface: Directly connects to a PC via USB—no external power or measurement equipment needed.

Portable and Lightweight: Its compact form factor ensures easy deployment on test benches or in remote setups.

Included Software: Windows-based application supports real-time monitoring, remote control, and data logging for analysis and reporting.

Parameter	Details
Frequency Range	1 MHz to 12.5 GHz
Power Measurement Range	-60 dBm to +20 dBm (typical)
Detection Method	True RMS
Dynamic Range	Up to 80 dB
Accuracy	±0.25 dB typical
Interface	USB 2.0
Power Supply	USB-powered (no external source required)
Dimensions	Compact USB module (approx. 100 mm length)
Software Support	Compatible with Windows OS for logging and remote operation

Wireless Communications: Accurately measure RF power in Wi-Fi, LTE, Bluetooth, and early 5G applications.

RF Component Testing: Validate power levels of components such as attenuators, mixers, and amplifiers.

Military and Aerospace: Evaluate radar, telemetry, and secure comms systems with dependable power accuracy.

Automated Test Equipment (ATE): Integrate easily into ATE setups for batch testing in production workflows.

Field Maintenance & Diagnostics: Compact and rugged for on-site RF power verification during system installations or maintenance.

The LB5912A 1 MHz to 12.5 GHz True RMS Power Sensor

Key Features

Specifications

Applications