Let radio enthusiasts and radio enthusiasts step into the SDR era, appreciate the charm of spectrum display (not only can you hear the signal but also see the signal), and become addicted to the "malachite receiver". It is not only a receiver, but also a spectrum analyzer, and many of its features are inferior to traditional hardware spectrum analyzers! This SDR receiver uses a 7-inch screen tablet computer with Intel's low-power quad-core processor. Many indicators are better than the sky-high-priced "Malachite Receiver". The tablet computer can be used continuously for more than 3 hours when fully charged. RF analyzer, broadband spectrum analyzer (for Android/for Hongmeng system version), frequency range 25MHz-1896MHz. (Can increase the reception of medium and short wave frequency bands, ) The SDR receiver can receive medium and short waves (MW, HF) and ultra-short waves (VHF, UHF), and receive broadcast stations and civilian stations in amplitude modulation (AM), frequency modulation (WFM, NFM), single sideband (USB, LSB) and other formats. marine radio, coast radio, amateur radio, civil aircraft, walkie-talkies, wireless microphones, wireless remote controls, etc. It is particularly suitable for checking the signal on the frequency: whether there is a signal, signal strength, signal bandwidth, modulation type, etc., as well as the situation of interference signals on the same frequency and adjacent channels; especially for performance units to check whether there are free wireless microphone frequencies or interference with wireless signals on site. The frequency of the microphone (can monitor sounds at the same time); it can also be used by radio enthusiasts and maintenance personnel to detect walkie-talkies or radio stations in the VHF and UHF frequency bands, as well as remote controls, car keys, etc. in the 315MHz, 433MHz and other freq