ADF4351 35M-4400MHZ 4.3 Inch TFT LCD Color Screen Digital Handheld Spectrum Analyzer

Specification Spectrum display range 35Mhz 4400MhzInput impedance 50 ohmRBW 100kHz 200kHz and 500KHz are adjustableNumber of screen scanning points 700Scanning span 70m 100kHz 140m 200kHz 350m 500KHz dBm range 70dB 10dBThere is no amplification circuit inside the machine If small signal needs to be measured external amplifier is requiredAdopt STM32F407VET6 single chip computer 4 3 inch TFT LCD 480 x 800 color LCD screen All aluminum alloy shell rotary encoder control all English display interface USB power supplyUSB power supplySize 145mm x 70mm x 30mmWeight 250g excluding battery Display interface menu introduction 1 Ref Reference level default 10dB This version cannot be changed 2 ATT Signal attenuation NC To be developed 3 State Working status you can control whether the spectrum is scanned by pressing the encoder Parameters cannot be changed in scan state Working parameters can be configured in the suspended state Power on enters the scanning state by default You can press the encoder to put the device into the pausing state and then rotate the encoder to select different menus for setting When you select different menus the background of menu items will turn white When the menu item turns white press the encoder to enter the menu parameter setting function 4 Mark Marker bit In the scanning state you can rotate the encoder to control the buoy to move on the screen and display the frequency of different positions If