KiwiSDR Kit

SKU 110060490
299.00
1 Available
$299.00/ 1pcs+

Description

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 sdr.hu  website.


Features

  • 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.




Try it right now! Click to listen to a test site in Canada, Sweden or New Zealand




Technical Details

Dimensions0mm x 0mm x 0mm
WeightG.W 310g    
BatteryExclude
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

KiwiSDR Board1
Beaglebone Green1
Unassembled enclosure1
Skyworks SE4150L GPS front-end antenna1
Micro-SD Card1

ECCN/HTS

ECCN5A991.b
HSCODE9023009000

Reviews

Questions and Answers

SUBMIT
0
For the moment I have given up as I can't get rid of them. They are still there when I have removed antenna and all my peripheral circuitry, leaving just the power cable (with large ferrite ring), and the CAT6 cable (with FT240-31 rings at either end) with the antenna input shorted out. In fact I surmise that the unwanted signals come directly from the IP network communication. Has any one else seen this? And better still has anyone found a way around the situation/problem??
on Aug 15,2017
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In all the setups and testing I've done I've never seen any spurs with the antenna disconnected. It's always just a flat noise floor. So could this be differential noise coupled into the Kiwi's ground plane via the power supply ground? What does your power supply do with the +5V ground? Does it float or get coupled back to the mains ground? You might try different different grounding configurations and see if that helps. Your toroidal common-mode choke won't do much if the noise is differential mode flowing back on the power supply ground.
on Aug 21,2017 03:44 AM
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There is pretty good evidence now that this is RFI/EMI from the Ethernet switch or cables. Please see the related topic on the Kiwi forum.
on Aug 30,2017 03:33 AM
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And Seeed, will you please fix the Question and Answer reply text so special characters don't show as HTML escape sequences! lol
on Aug 30,2017 03:34 AM
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Here's a blog post where a 20 dB improvement was made by using a metal-case Ethernet switch and long, shielded CAT6 cables: https://g0luj.blogspot.com/2018/01/reducing-ethernet-interference-by.html
on Jan 02,2018 18:33 PM
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The above link has moved to: https://www.g0luj.com/?p=22 Also see: https://www.g0luj.com/?p=230
on Jun 09,2018 07:21 AM
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1
Is a power supply required for simple HF listening, or is the voltage from the usb enough? Also, I/O can be through ethernet or USB, correct?
on Jun 05,2017
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Hi Dan. Power has to be applied to the Kiwi's round (2.1/5.5 mm) DC jack. 5V @ 1.5 to 2A. USB power on the BBG can't handle the current (it won't even power-up). See here: http://kiwisdr.com/quickstart/index.html#id-power
on Jun 06,2017 07:18 AM
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Thank you. Just one follow up: Will I need a preselector/high pass filter for strong AM interference?
on Jun 19,2017 03:18 AM
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Hi Dan. Yes, it is possible you will need an HPF. Depends on how strong your local AM BCB signals are. See here: http://kiwisdr.com/quickstart/index.html#id-overload
on Jul 02,2017 18:29 PM
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0
how to assemble the kiwisdr kit case there were no instructions in the box
on Jul 19,2017
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VA3ROM, sorry I've only seen your question just now (July 27). I don't get a notification for these unfortunately. There _should_ have been a printed "quick start" instruction sheet in the box with enclosure assembly information. You can find it online here: http://kiwisdr.com/quickstart/quickstart.pdf Please email support@kiwisdr.com with any questions. Best regards, John, ZL/KF6VO, KiwiSDR
on Jul 28,2017 04:25 AM
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0
How do I post a review of this product?
on May 13,2017
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After you've made a purchase you'll see a "review" button on the order history page. I think you also get an email asking for a review.
on Aug 21,2017 03:47 AM
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0
Is there a customs duty for europe belgium.
on Jan 12,2017
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I ordered one that shipped to Holland and it arrived without custom duties. I used the Singapore Post shipping method, the only available option for me.
on Jan 14,2017 02:46 AM
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Thank you Eric.
on Jan 14,2017 20:25 PM
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0
Got the KiwiSDR up and running with no problems initially but after running for a few days the BB Green network interface has died. Link LED doesn't light, with no link established. No amount of power cycling or software reload fixes it. Have tested network switch and cable, along with power supply voltages. Have since removed KiwiSDR and installed on a spare BB Black I had, all works fine with it. The supplied BB Green appears to be faulty. How do I get a replacement? Ron nz
on Sep 19,2017
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Hi Ron. If you purchased from Seeed please email techsupport@seeed.cc to get a replacement. Otherwise contact the distributor you purchased from. There seem to have been a bunch of BBGs produced with Ethernet PHY failures. John (support@kiwisdr.com)
on Sep 22,2017 11:18 AM
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0
Here are some screen dumps of the problem I've found
on Aug 20,2017
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    KiwiSDR Kit

    SKU 110060490
    $299.00
    1 Available
    $299.00/ 1pcs+
    • Description
    • Technical Details
    • Reviews
    • Questions and Answers
    Notify me when it's back in stock
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