DeepSDR Radio DSP Digital Demodulation Shortwave AM FM MW SSB CW HAM Receiver

DeepSDR SDR Radio Software Defined Radio DSP Digital Demodulation Shortwave CW SSB AM FM Broadcast Receiver

 

This product realizes frequency mixing based on the Tayloe Quadrature Product Detector method. The 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

 

Special reminder: The working principle of the resistive touch screen is mainly to realize the operation and control of the screen content through the principle of pressure sensing. Installing a screen protector may have some impact on the operation of the touch screen, we recommend that you do not install a screen protector unless it is necessary.

Product description

DeepSDR 101 is a DSP digital demodulation radio based on SDR software-defined radio architecture. It has a 192kHz width spectrogram and waterfall display capabilities, and cooperates with 16bit sampling to realize a high dynamic receiver with CW, AM, SSB, FM demodulation functions. The whole machine adopts an all-aluminum alloy CNC shell, with a 4.3-inch 800×480 resolution high-brightness IPS LCD display, while maintaining a compact and compact body.

Immediately take it to the outdoors, enjoy the natural scenery and the fun of listening anytime, anywhere!

 

Basic parameters

Display technology: 4.3-inch IPS 800×480 resolution DC dimming bright 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 earphones)

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

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

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

Reference crystal:       TCXO 26MHz ±0.5ppm

Audio interface:         support ordinary 3.5mm earphone or CTIA (American Standard) interface earphone

Speaker power:         maximum 3W, 4Ω multimedia speaker speaker

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

Current consumption: about 250mA @ 5V

Battery capacity:         5000mAh/3.7V, 18.5Wh

Use time:                   About 10-12 hours, depending on the volume and brightness settings of the machine

Channel saving:          99 channels can be preset, preset radio station name, station frequency and demodulation mode

Body size:                   136 x 74 x 22mm (L x W x H) (without protrusions)

Body weight:              about 310g (host only)

 

Receiver parameters

RF preamp gain: fixed 20dB

Circuit Type: Zero IF ZIF

Sideband suppression: ≥ 50dB

 

Test conditions: 50 ohm input impedance, preamp 20dB on, AGC on

Display control item list

Twelve items that can be selected by the encoder

1. Channel selection : 1-99

2. Frequency setting : 100k – 149MHz, minimum step 1Hz

3. Speaker volume(SPK) : 0~35dB, 1dB step

4. Earphone volume(EAR) : 0~35dB, 1dB step

5. Modulation : CW, LSB, USB, AM, WFM, STE(FM stereo), I/Q

6. AGC setting : OFF, SLOW, MID, FAST

7. Reference level(REF) : -99~99dB, 1dB step

8. Backlight brightness(LCD) : 1%~99%

9. IF GAIN : -12~67dB, 1dB step

10. Spectrum style settings : Green fill, Green line, Blue fill, White line

11. Spectrum bandwidth settings : RF spectrum (192kHz, 128kHz, 64kHz) and Audio spectrum (64kHz)

12. Waterfall area settings：Waterfall or Waveform (x1 / x8 / x64 amplitude)

Five items not selectable by the encoder

A. battery level display

B. date and time settings

C. radio information display: preset radio name capability

D. display of current spectrum bandwidth

E. (POWER) antenna port input power display

 

 

 

 

 

State of charge and discharge

 

 

Attention points

1. The machine adopts SDR architecture. If there is a strong broadcasting station near you, the phenomenon of mirror radio may appear.

2. The input impedance of the antenna interface is 50Ω. For the medium wave radio, it is recommended to connect a dedicated medium wave loop antenna for better listening effect.

3. Please pay attention to the volume setting of the earphone (EAR) before using the earphone to listen to avoid discomfort caused by excessive volume.

 

Shipping list :

1. DeepSDR101 4.3-inch screen unit x1

2. USB-A to USB Type-C cable x1

3. BNC rod antenna x1 (expanded length 70CM, closed length 14CM)

4. Quick Start Guide x1

5. 4.3 inch screen protector film 1

6. Foldable machine stand(Blue) x1

7. Resistive screen touch pen x1

8. EVA material protective bag x1