Features: Experience precise RF signal spectrum measurement with our Simple Spectrum Analyzers, covering a wide ranges from 35MHz to 4400MHz, ideal for both hobbyists and professionals. with serial communication and USB interfaces, this Analyzers offers a dynamic scan record ratio of over 50dB and supports operating systems including WinXP, Win7, and Win10. Perfect for radio enthusiasts, engineers, and technicians who require detailed frequency analysis in their work or projects. Suitable for laboratory testing, field debugging, educational training, and maintenance of radio equipment, ensuring accurate result in various environment . With its low noise level around 70dBm and build in tracking source, this spectrum Analyzers is essential tool for anyone needing reliable communication equipment accessories. Specifications: Material: plastic Current: ≤100mA - Scanning current: ≤350mA - Scanning speed: ≥800 point Dynamic scanning - recording ratio: >50dB - Frequency point or scanning output power: ≈0dBm - Input detection: ≤10dBm - Background: ≈ -60dbm -tracking source: 35mHz -4400mHz Package Includes: 1xSpectrum Analyzers note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.