Tektronix PSM4410 USB Power Sensor, 50 MHz – 20 GHz

The Tektronix PSM4410 is a USB-connected power sensor for RF and microwave measurements from 50 MHz to 20 GHz. It delivers accurate average, peak, and pulsed power analysis with dynamic range from -60 dBm to +20 dBm and measurement uncertainty as low as 2.6%. Operating at up to 2000 readings per second with 500 µs nominal measurement speed, the sensor connects directly to a host PC via USB 2.0, eliminating the need for external meter mainframes.

Technical Specifications

• Frequency Range: 50 MHz to 20 GHz


• Connector: 3.5 mm male


• Dynamic Range: -60 dBm to +20 dBm


• Measurement Uncertainty: As low as 2.6% (temperature-dependent; 0.00% at 20–30 °C)


• Reading Rate: Up to 2000 readings/s (500 µs per measurement nominal)


• Temperature-Compensated Calibration: Full range, no zeroing required


• Power Supply: USB 2.0, 5 V, >450 mA from host PC


• TTL Trigger: Input and output with 2 µs typical resolution and 10 ms typical delay

Key Features

• Average power (CW), peak power, pulse power, and duty cycle corrected pulse power measurements


• Modulated signal characterization: GSM, CDMA, WCDMA, HSPA, WiMAX up to 10 MHz bandwidth


• Pulse modulation analysis


• Offset, frequency response, and 75 Ω minimum loss pad corrections


• Max Hold and Relative Measurement modes


• Flexible averaging with Pass/Fail limit detection


• Included Windows application software with data logging and trend graphing


• LabVIEW drivers and DLL API (LB_API2.DLL) for automated test integration

Typical Applications General-purpose RF power measurements, complex modulated and pulsed signal characterization, system integration, and laboratory test automation across microwave frequencies.

Compatibility & Integration Windows PC required with minimum 2 GB RAM and USB 2.0 port. Programmatic control via LabVIEW or direct DLL interface. TTL triggering enables external instrument synchronization.