by KrakenRF Inc

A phase-coherent software-defined radio with five RTL-SDRs

Dec 01, 2021

Kraken campaign succeeds!

Thank you to everyone who has backed or been following this project. The initial funding campaign has now concluded with almost 5x our minimum funding goal! So now what? Read the full update.

Nov 15, 2021

EU Orders, Software Updates, and Antenna-Array Spacing Information

If you had trouble placing an order from the EU and received errors about a missing CE certification, please give it another try. There appears to have been a misconfiguration in Crowd Supply's ordering system that incorrectly excluded EU backers for approximately five days. That misconfiguration has since been fixed. For clarification, KrakenSDR will have CE certification, making it legal to sell and use within the EU. This update also includes details about our software-development progress and about antenna-array spacing. Read the full update.

Nov 05, 2021

Manufacturing Progress, Enclosure Pics, Software Development, and Some Testing

Including external-component phase-distortion experiments focused on cable-length changes and external LNAs and filters Read the full update.

Oct 29, 2021

Manufacturing News, Beacon-Tracking Experiments, Antenna Details, and a FAQ Update

Thanks to everyone who's following along with this project. We've now sold well over half of the initial 1,000-unit batch we are planning to produce immediately following the campaign. It's looking like we'll sell out that entire production run before the end of the campaign, at which point shipping estimates for subsequent orders will shift back to late September. So please do order early if you want to get your KrakenSDR by the date currently shown on the campaign page! Meanwhile, here's an update on what's been keeping us busy. Read the full update.

Oct 22, 2021

Frequently Asked Questions

We have received a number of excellent questions, which we have summarized in this update. Read the full update.

Oct 20, 2021

The Latest Kraken Development News

Catch up on all the latest development work we've done on the Kraken SDR ecosystem. Read the full update.

Oct 14, 2021

Releasing the KrakenSDR!

KrakenSDR is now available for crowdfunding on Crowd Supply. It is a five-channel, RX-only, software-defined radio (SDR) based on the RTL-SDR and designed for phase-coherent applications and experiments. Phase-coherent SDR opens the door to some very interesting applications, including radio direction finding, passive radar, and beam forming. Come have a look at our campaign page to learn more! Read the full update.

Sep 29, 2021

KrakenSDR Lives!

Like many others, we have been severely delayed by COVID restrictions and the effects it's having on the supply chain, and I'd like to thank everyone who is keen to get a hold of a KrakenSDR for their patience. The ball is rolling faster now, and we have finally received our latest KrakenSDR prototypes! Read the full update.

$468,695 raised

of $100,000 goal

468% Funded! Order Below

Product Choices


KrakenSDR with Aluminum Case

This fully assembled and tested KrakenSDR comes installed in a custom aluminum enclosure and includes a free copy of the KrakenSDR Android app. The eventual retail price will be $399.


Five Magnet-Mounted Antennas

A set of five magnetic whip antennas that can be used with the KrakenSDR for direction finding. The magnets are strong enough to secure the antennas to the roof of a moving car.


KrakenRF Inc

KrakenRF Inc produces affordable, powerful, and accessible SDRs.

KrakenRF Inc

See Also

Subscribe to the Crowd Supply newsletter, highlighting the latest creators and projects: