Attention: This product is neither an instrument nor a professional radio. Compared with the former two, the receiving performance will be slightly inferior. This product realizes frequency mixing based on the Tayloe Quadrature Product Detector method. Clock generator Si5351 generates two quadrature square wave signals with variable frequency as excitation, and realizes an ultra-low noise ZIF zero-IF receiver.
The IQ signal obtained after mixing is output to the CODEC codec and collected by the MCU, and the DSP algorithm in the MCU completes the demodulation and display of the signal.Tayloe mixer references: Ultra Low Noise, High Performance, Zero IF Quadrature Product Detector and Preamplifier: http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
Description: HamGeek DSP-01 is a DSP digital demodulation radio based on SDR architecture. It features a 192kHz wide spectrogram and waterfall display. With 16bit sampling, it is a high dynamic receiver with CW, AM, SSB and FM demodulation functions.
The whole machine adopts all-aluminum alloy CNC shell, with a 4.3-inch 800x480 resolution high-brightness IPS LCD display. It also maintains a compact and compact body. Immediately take it to the outdoors, enjoy the natural scenery and the fun of the radio anytime, anywhere!Base Parameters: Display technology: 4.3 inch IPS 800x 480; DC dimming bright LCD
Control method: resistive touch screen + rotary encoder, Frequency range: 100k~149MHz

Working mode: CW, AM, SSB (LSB/USB), WFM, FM broadcast stereo (requires headphones)
Step frequency: 1Hz/10Hz/100Hz/1kHz/10kHz/100kHz/1MHz/10MHz
Spectral bandwidth: 192kHz, 128kHz, 64kHz, FFT real-time spectrum display
Antenna interface: BNC male connector, input impedance 50Ω, maximum input power -20dBm
Reference crystal: TCXO 26MHz ±0.5ppm
Audio interface: support ordinary 3.5mm earphone a