Feature: 1. Tracking Source: The signal source of this simple spectrum analyzer has a tracking function. When the tracking source is turned on, the output bandwidth is 35mHz‑4400 mHz, safe and reliable. 2. Excellent PCB: The frequency spectrum analyzer module is made of excellent PCB material, ensuring stable structure, reliable performance, sensitive contact, and has a long service life. 3. Easy Installation: The spectrum analyzer module is compact and lightweight, convenient to install and use, suitable for DIY projects, and used for RF signal spectrum measurement. 4. Software and System: This spectrum analyzer module uses for WinNWT4 computer software, track source code analysis, suitable for WinXP, for Win7, and for Win10 computer operating system. 5. Type C Power Supply: This spectrum analyzer board supports Type C power supply and serial comm, making it convenient to use anytime and anywhere, greatly improving work efficiency. Specification: Item Type: Simple Spectrum Analyzer Material: PCB Serial Comm Computer Software: For WinNWT4 RF Frequency Domain Analysis Tool Power Supply: Type C Standby Current: ≤100mA Scan Current: ≤350mA Scan Speed: ≥800 points per second Dynamic Scan Record Ratio: >50dB Frequency Point or Scan Output Power: About 0dBm Input Detection: ≤10dBm Background: About -60dBm Built in Tracking Source: 35mHz-4400mHz Computer Operating System: Suitable for WinXP, for Win7, for Win10 Application: RF signal spectrum measurement within the frequency range of 35mHz-4400mHz, signal output of 35mHz-4400mHz. Size: Approx. 80 x 53mm / 3.1 x 2.1in. Package List: 1 x Simple Spectrum Analyzer Note: The sensitivity of the spectrum analyzer is not high, with low noise around ‑70dB. It is recommended to directly connect the signal source using an SMA cable for measurements. If using an antenna, it needs to be very close to the signal. The distance may vary depending on the signal source, for example, for car key signals, measurements can be made within 30cm, while high power devices like intercom radio should be measured from a distance of 2 meters. High power signals can damage the onboard mixer.