The Tektronix PSM3120 is a USB-powered RF power sensor that measures true average power from 10 MHz to 8 GHz with ±2.6% uncertainty. This compact instrument connects directly to a PC, delivering up to 2000 readings per second across a dynamic range of −60 dBm to +20 dBm. Built for R&D, manufacturing test, and field service applications, it eliminates the need for zeroing or reference calibration through full-temperature-range factory calibration.
Technical Specifications
• Frequency Range: 10 MHz to 8 GHz
• Dynamic Range: −60 dBm to +20 dBm
• Measurement Speed: Up to 2000 readings/second
• Uncertainty: 2.6%
• Input Impedance: 50 Ω nominal
• Connector: N-Type Male
• Power Source: USB
• Physical: 48 mm diameter, 203 g
– Key Features
• Measurement Modes: Average Power, Duty Cycle Corrected Pulse Power, Max Hold, Relative Measurement, Pass/Fail Limit
• Corrections: Offset, Frequency Response, 75 Ω Minimum Loss Pad
• Flexible Averaging: Quick and stable measurement options
• Data Logging: On-board measurement logging
• Triggering: TTL Trigger Input and Output for external synchronization
• Software Suite: Power Meter and High-Speed Logging applications for Windows; LabVIEW drivers and programming examples included
• USB 2.0: Standard PC communication via 2-meter cable
– Typical Applications
• General-purpose RF and Microwave Average Power Measurements
• Characterization of repetitive pulsed signals (navigation, weather, radar)
• Peak and Average Power Measurements on modulated signals
– Compatibility & Integration
Operates on Microsoft Windows with LabVIEW and common Windows programming environments. Can be controlled by Tektronix real-time signal analyzers, arbitrary waveform generators, and oscilloscopes running Windows. Factory-calibrated certificate and multi-language documentation included.
