DSP SDR Radio Receiver 4.3 Inch Touch Screen 100KHz To 149MHz FM MW SSB CW HAM Shortwave Radio Receiver Item Type: DSP SDR Radio Receiver Material: Aluminum alloy Display Technology: 4.3 inch IPS 800x480 resolution DC dimming high bright LCD screen Control Method: Resistive touch screen, rotary encoder Channel Selection: 1-99 Frequency: 100K to 149MHz, minimum step 1HZ Speaker Volume (SPK): 0-35dB, 1dB step Earphone Volume (EAR): 0-35dB, 1dB step Modulation: CW, LSB, USB, AM, WFM, STE (FM stereo), I Q AGC Settings: OFF, SLOW, MID, FAST Reference Level (REF): -99 to 99dB, 1dB step IF Gain: -12 to 67dB, 1dB step Spectral Style Settings: Green supplement, green line, blue supplement, white line Spectrum Bandwidth: RF spectrum (192kHz, 128kHz, 64kHz); Audio spectrum (64kHz) Waterfall Area Setting: Waterfall or waveform (amplitude x1 x8 x64) Five items that cannot be selected by the encoder: A. Battery level display B. Date and time settings C. Station information display: preset station name capability D. Display current spectral width E. Input (POWER) antenna port POWER display Working Mode: Single sideband CW, AM, SSB (LSB USB), WFM, stereo FM (requires headphones) Step Frequency: 1Hz 10Hz 100Hz 1kHz 10kHz 100kHz 1MHz 10MHz Spectrum Bandwidth: 192kHz, 128kHz, 64kHz, FFT real time spectrum display Antenna Interface: BNC male, impedance 50Ω, maximum input power -20dBm Reference Crystal Oscillator: TCXO 26MHz ±0.5ppm Audio Interface: Support regular 3.5mm headphones or CTIA (US standard) headphone interface Speaker Power: Maximum 3W, multimedia speaker 4Ω Charging Port: USB Type C, 5.0V 2A Current Consumption: About 250mA at 5V Battery Capacity: 5000mAh 3.7V (built in) Usage Time: About 10-12 hours, depending on machine volume and brightness settings Channel Saving: 99 channels can be preset, and the station name, frequency, and alignment method can be preset Description: The product is based on for Tayloe Quadrature Product Detector method to achieve frequency mixing. The clock generator Si5351 generates two variable frequency orthogonal square wave signals as excitation, achieving an ultra low noise ZIF zero intermediate frequency receiver. The IQ signal obtained after mixing is output to the CODEC and collected by the MCU, where the DSP algorithm completes signal demodulation and display.