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Belka, Malahit and the RF Shark


Three brand-new SDRs and Kits you may never have heard about

New HF SDR Receivers and Kits

The Belka DSP

The Belka-DSP radio receiver is designed for listening to radio stations with AM, NFM and SSB modulation, as well as CW signals at frequency range 3.5 - 30 MHz. Case size - 85x50x20mm (weight ca. 100g). High sensitivity is realized when receiving on a telescopic antenna. The Belka-DSP is said to work well with a full-sized antenna. It is possible to adjust the audio high pass filter from 2.4 to 4.7 kHz, as well as the low pass filter from 50 to 300 Hz. In telegraphy mode, the frequency band is about 300Hz, with a regulated pitch from 500Hz to 1kHz. The settings of your favourite radio stations can be stored in any of 32 memory channels. There is no built-in speaker, but there is a fairly powerful bridge mode audio amplifier that provides sufficient volume when working on an external speaker or headphones. The built-in LI-Ion battery is claimed to allow users to work with the radio for about 24 hours. In addition to the built-in battery, the receiver can also work from an external DC voltage source of 5V.

(Source: SWLing Post, Alex Buevky (EU1ME))


Malahit DSP

Some very exciting news on the topic of portable all-band receivers comes from Russia! A group of engineers have just released the new Malahit-DSP for ordering. And it looks truly impressive. Picture an Icom IC-R8600 with the size of a Sony 7600G! It seems it all started in June this year. Back then, RX9CIM George posted a note in the forum about a new project he had been working of a standalone, SDR-based, all-band, all-mode receiver called Malahit-DSP. Fast forward to November, and it seems the project is finally complete as new posts started to bubble up in YouTube and in Russian forums. George is now taking orders of the Malahit DSP.

(Source: SWLing Post,

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Stampfl RF Shark

The receiver works according to the double superhet principle and is designed for the frequency range from 40kHz to 30 MHz. It is characterized by an elaborate circuit with several quartz-stable oscillators and a DDS frequency processing. In addition, it has a tuneable preselector, high-quality ceramic filters in the second IF position and a product detector for SSB and CW reception. For AM, 6 kHz and 9 kHz bandwidth are available. A TCXO ensures high-frequency stability of locals oscillators. Thanks to a very detailed, richly illustrated construction manual, it is also possible for beginners without knowledge of HF technology to build this kit successfully. The adjustment work is limited to the LCD contrast adjustment and the levelling of the S-meter. Required are a multimeter, soldering iron, pliers and screwdrivers, as well as a steady hand and patience. The only SMD component of the kit is already pre-assembled. The kit contains all required boards, assemblies and components as well as a machined and printed housing.


If you have purchased one of these receivers, drop the editor a line and tell us about them!



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