The Tektronix PSM3110 USB Power Sensor is a compact, portable instrument for precise RF power measurements from 10 MHz to 8 GHz. Powered via USB and connected directly to a PC, it eliminates the need for a separate mainframe while delivering measurement speeds up to 2000 readings/second. The sensor operates across a dynamic range of -60 dBm to +20 dBm with accuracy as low as 2.6%, depending on power level. It provides true average power measurement regardless of signal shape or modulation, making it suitable for characterizing pulsed and modulated signals in wireless communications and general RF/microwave applications.
Technical Specifications
• Frequency Range: 10 MHz – 8 GHz
• Dynamic Range: -60 dBm to +20 dBm
• Measurement Speed: Up to 2000 readings/second
• Measurement Accuracy:
– +15 to +20 dBm: 3.0%
– -15 to +15 dBm: 2.5%
– -55 to -15 dBm: 2.0%
• RF Connector: 3.5 mm male
• USB Interface: Direct PC connection
• TTL Trigger: Input and output for external synchronization
• Calibration: Full temperature-range calibration; no zeroing or reference calibration required before measurement
– Key Features
• True average power measurement independent of signal shape
• Duty cycle-corrected pulse power measurement
• Measurement logging and data capture
• Max Hold and relative measurement modes
• Offset and frequency response correction
• 75 Ω minimum loss pad correction support
• Flexible averaging modes for measurement stability
• Pass/Fail limit mode for go/no-go testing
– Typical Applications
• General-purpose RF and microwave average power measurements
• Pulsed signal characterization
• Modulated signal analysis in wireless communications
– Compatibility & Integration
The included Windows-based power meter and high-speed logging applications operate under Microsoft Windows. LabVIEW drivers and programming examples are available. A fully documented API supports development of custom test applications.
