How to DIY msiSDR Malachite Portable Receiver?

If you're interested in building your own portable msiSDR Malachite receiver, this article is for you.

Key Features:

· The radio is built on SDR principles—its functionality is determined by the software loaded onto it.

· Frequency Range: 50 kHz to 250 MHz, and 400 MHz to 2 GHz.

· Supports all types of analog modulation: AM, SSB, NFM, WFM.

· Powerful features: variable filter width, adaptive noise suppressor, threshold noise suppressor, Noise Blanker, AGC, equalizer.

· Utilizes the inexpensive yet fully functional msi001 chip.

· Equipped with a powerful STM32H743 running at a clock frequency of 480 MHz.

· 3.5-inch IPS display with touch screen.

· Includes a built-in UHF.

· Controls: 2 encoders with buttons and touch screen.

· Powered by a built-in battery and USB, with USB charging. The built-in battery has a capacity of at least 1500mAh.

· Power Consumption: 300mA when listening through headphones.

· Reception: Built-in retractable antenna or external antenna. An additional board with an emitter follower is developed to improve HF reception with the retractable antenna. This board will be integrated into the standard receiver design.

· USB connectivity allows for CAT, IQ, and audio transmission to a computer.

· 160 kHz span.

· Sensitivity: 0.3μV = 10dB at up to 250 MHz (measurement not performed due to lack of measuring equipment).

· Dynamic range: approximately 85dB, due to the characteristics of the msi001 chip.

· Aluminum casing.

· Backlight control.

· SMA-type antenna socket.

· Receiver dimensions: 120 x 70 x 10 mm.

The finished portable msiSDR Malachite receiver is shown below: