KiwiSDR Board

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KiwiSDR is a software-defined radio (SDR) covering shortwave, the longwave & AM broadcast bands, various utility stations, and amateur radio transmissions, world-wide, in the spectrum from 10 kHz to 30 MHz.

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KiwiSDR is a software-defined radio (SDR) covering shortwave, the longwave & AM broadcast bands, various utility stations, and amateur radio transmissions, world-wide, in the spectrum from 10 kHz to 30 MHz. The KiwiSDR is a custom circuit board (cape) you connect to the BeagleBone Green or BeagleBone Black computer. You simply add an antenna, power supply and network connection. The KiwiSDR is available in two versions: the cape alone and a more complete version including BBG, enclosure and GPS antenna. Both versions include software supplied on a micro-SD card.

An HTML5-capable browser and internet connection will let you listen to a public KiwiSDR anywhere in the world. Up to four people can listen simultaneously to one radio — each listener tunes independently.

Try it right now! Listen to KiwiSDR registered on the rx.kiwisdr.com website.


  • 100% Open Source / Open Hardware.

  • Browser-based interface allowing four simultaneous user web connections.

  • Each connection tunes an independent receiver channel over the entire spectrum.

  • Waterfall tunes independently of audio and includes zooming and panning.

  • Multi-channel, parallel DDC design using bit-width optimized CIC filters.

  • Good performance at VLF/LF since we personally spend time monitoring those frequencies.

  • Automatic frequency calibration via received GPS timing.

  • Easy hardware and software setup. Browser-based configuration interface.

  • Extension interface for adding decoders and utilities.


  • SDR covers the 10 kHz to 30 MHz (VLF-HF) spectrum.

  • Web interface based on OpenWebRX      from András Retzler, HA7ILM.

  • Demodulation modes: AM, AMN, LSB, USB, CW, CWN, NBFM.

  • Extensions at present: WSPR viewer/decoder, IQ display, Loran-C viewer.

  • RF antenna connector: SMA and terminal block.

  • Integrated software-defined GPS receiver from Andrew Holme's Homemade GPS Receiver.

  • GPS receives the Navstar system on L1 frequency 1575.42 MHz.

  • GPS antenna connector: SMA, 3.3V powered for active antennas.

  • Voltage: +5V DC, 2.1mm jack, center pin positive.

  • Current: 1.5A including Beagle, KiwiSDR powers Beagle through header connectors.

  • Dimensions: KiwiSDR PCB 117mm * 55mm, SMA connectors additional.

Part List

  • 1 x KiwiSDR Board

  • 1 x Micro-SD card


  • For source code and issues list, please visit our Github page.

  • For technical discussion, please come to our Forum.

Technical details

Dimensions 0mm x0mm x0mm
Weight G.W 100g
Battery Exclude


HSCODE 8543709990
USHSCODE 8471490000




GPS-enabled location and timing services have become a key technology in the current age of mobile technology. This project is to explore how they work, at a level below that of the standard NEMA sentences that most GPS modules provide for the user interface.
Comparing KiwiSDR, SDRPlay RSP2, and HackRF One.
This post shows how you would typically use a Kiwi.
The official site of KiwiSDR. You can find all you want to know about KiwiSDR here.



Write Your Own Review
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  1. Product Quality
    Very good Very good SDR and service
    I am satisfied
  2. Product Quality
    Nicely done I am happy with the KiwiSDR board from Seeed. My only problem was ordering just as Chinese New Year was happening and they folks at Seeed went on holiday. My fault, I should have known better. but once they returned, I was impressed with the speed on getting my order to me.

    The board itself is a high quality manufacture. Very impressed and pleased.
  3. Product Quality
    Initial impressions after a few days use. The KiwiSDR board wth the Seed Beaglebone Green and software from OpenWebRX is a excellent product. Easy to get started and a joy to use for me and my friends. I have been an active radio amateur for over 40 years and this product is a milestone for me. It gives wonderful opportunities for remote listening from a QTH with a far better local noise factor than my ordinary QTH.


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