1 satellite receiver system; 2 radio communication system; 3 mobile phone base station system field strength measurements of radiation; 4 Electromagnetic interference detection and analysis of high-frequency signals; 5 of signal components, signal distortion, signal attenuation, gain and other electronic components; 6 electronics manufacturing, educational radio. Spectrum analyzer based on the same platform as our earlier , breaks new ground in the mid-range spectrum analyzer offers unmatched performance for the lowest cost. it gives our customers the performance they need without having to spend extra money on test instruments that are costly and provide more performance than required. It is perfectly suited to the mobile communication bands (CDMA2000, WCDMA)\RF system\broadcast\EMI/EMC test etc. it is a 3GHz spectrum analyzer is lightweight with a large 8.4" color LCD display. It includes a fast processor and a large memory capable of storing large data of screen traces and operational states. it's 50-ohm input can accept signals between +33 dBm and -124dBm while providing protection up to 50 VDC. Its user interface is designed to simplify many of the measurements required for the evaluation of today's sophisticated communications systems. You can enhance the instrument with options including, Tracking Generator, GPIB, LAN and more. Resolution Bandwidth: 5Hz~3MHz in 1 to 10 steps Various measuring functions: frequency measurement, AM/FM demodulation, ACP measurement, chromatogram etc Multi-windows modes, Spectrum zooming function Display as many as of 5 track lines