This product implements frequency mixing based on the Tayloe Quadrature Product Detector method. The clock generator Si5351 generates two orthogonal square wave signals with variable frequencies as excitations, realizing 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. The DSP algorithm in the MCU completes the demodulation and display of the signal.

Tayloe mixer Reference: http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf

SDR Radio DSP Digital Demodulation Shortwave FM MW SSB CW HAM Radio Receiver

Description：

DeepSDR 101 is a DSP digital demodulation radio based on SDR software-defined radio architecture. It has 192kHz width spectrogram and waterfall display capabilities, and cooperates with 16bit sampling to realize a highly dynamic receiver with CW, AM, SSB, and FM demodulation functions. The whole machine adopts an all-aluminum alloy CNC shell and is equipped with a 4.3-inch 800x480 resolution high-brightness IPS LCD display, while maintaining a small and compact body.

Take it outdoors immediately and enjoy the natural scenery and listening pleasure anytime and anywhere!

Specifications:

Display technology: 4.3-inch IPS 800x480 resolution DC dimming high-brightness LCD

Control method: resistive touch screen + rotary encoder

Frequency range: 100k – 149MHz

Working mode: CW, AM, SSB single sideband (LSB/USB), WFM, FM broadcast stereo (requires headphones)

Step frequency: 1Hz/10Hz/100Hz/1kHz/10kHz/100kHz/1MHz/10MHz

Spectrum bandwidth: 192kHz, 128kHz, 64kHz, FFT real-time spectrum display

Antenna interface: SMA, impedance 50Ω, maximum input power -20dBm

Reference crystal oscillator: TCXO 26MHz ±0.5ppm

Audio interface: supports ordinary 3.5mm headphones or CTIA (American standard) interface headphones

Speaker power: Maximum 3W, 4Ω multimedia speaker

Charging port: USB Type-C, 5.0V/2A

Current consumption: about 250mA @ 5V

Battery capacity: 5000mAh/3.7V, 18.5Wh

Usage time: about 10-12 hours, depending on machine volume and brightness settings

Channel saving: 99 channels can be preset, including station name, station frequency and demodulation method.

Product dimensions: 140 x 74 x 22mm (L x W x H) (no protrusions)

Product weight: about 315g (host only)

Packing weight: 415 grams Packing size: 19*10.5*4.5cm

Packing list:

SDR 4.3-inch IPS screen host*1

USB Type-C data cable*1

BNC 7-section telescopic antenna*1

Quick Start Guide Manual*1

Resistive screen double-headed touch pen*1

Receiver parameters:

RF preamplifier gain: fixed 20dB

Circuit type: Zero IF ZIF

Sideband suppression: ≥50dB