The Tektronix PSM4320 USB Power Sensor measures RF power from 50 MHz to 18 GHz with dynamic range of -60 dBm to +20 dBm. This compact, USB-powered instrument delivers average, pulse, and peak power measurements at rates up to 2000 readings per second, making it suitable for field testing, installation, and maintenance workflows. Factory calibration across the operating temperature range eliminates zeroing requirements before measurements.
Technical Specifications
• Frequency Range: 50 MHz – 18 GHz
• Measurement Types: Average/CW, Pulse, Peak Power
• Dynamic Range: -60 dBm to +20 dBm
• Measurement Speed: Up to 2000 readings/s
• Video Bandwidth: 10 MHz
• Interface: USB 2.0 Full speed (11 Mb/s)
• Connector: N-type male
• Physical: 48 mm diameter, 163 mm length, 163 g
• Power Source: USB bus powered
• Trigger Input: TTL compatible, 1 Hz to 750 kHz, ±5.5 V / -0.5 V limits
– Key Features
• Full-range factory calibration eliminates sensor zeroing before testing
• High-speed data acquisition captures transient and dynamic power behavior
• Versatile measurement modes support average power, duty-cycle-corrected pulse power, and peak detection
• Portable form factor integrates into field kits and automated test racks
• TTL trigger input enables synchronization with external test equipment
– Typical Applications
• RF field installation and commissioning
• Transmitter maintenance and troubleshooting
• Antenna and cable assembly validation
• Network optimization and coverage verification
• Pulse and modulated signal characterization
– Compatibility & Integration
The sensor operates on Windows XP SP3, Vista, and Windows 7 (32/64-bit). Included Windows Power Meter and High-speed Logging applications provide real-time measurement display and data capture. LabVIEW drivers and programming examples enable custom integration into automated test environments. Host system requires minimum 2 GB RAM.
Operating Environment: 0 °C to 50 °C, 15–45% RH (non-condensing), 3,000 m altitude maximum.
