HackRF Now for Sale

HackRF is now for sale on Kickstarter, and it has already reached it’s $80,000 USD goal in less than half a day. If you didn’t already know, HackRF is an open source Software Defined Radio that can receive and transmit between 30 MHz and 6 GHz. HackRF has a 20 MHz bandwidth which when compared to the RTL-SDRs 3.2 MHz maximum is a lot.

There have already been 500 HackRF beta units sent out so the hardware should be fairly stable by now.

The basic package which includes a fully assembled HackRF board and enclosure is selling for $275. For $315 you can get a HackRF, enclosure and a Ham-It-Up upconverter as well, which is commonly also used with the RTL-SDR and will allow you to receive the HF bands between 0 – 30 MHz.

HackRF Jawbreaker Board with Enclosure

If you are interested in some videos, here is a video showing the HackRF transmitting wideband FM using GNURadio.

Here, showing 20 MHz of the GSM band

HackRF smoke testing: GSM tower

Here, 20 MHz of the broadcast FM band

HackRF smoke testing: Full FM broadcast band

Portable Homemade Spectrum Analyzer using a Beaglebone Black and the RTL-SDR

On YouTube, Stephen Ong has posted a video (and written a short post on his blog) of a portable home made spectrum analyzer he made using the RTL-SDR, a Beaglebone Black and an LCD touchscreen. The Beaglebone Black is a small Linux capable PC that fits in a hand, similar to the Raspberry Pi but with slightly more processing power.

Earlier in the year we posted about another Beaglebone based spectrum analyzer, but this new one by Stephen seems to be much improved with touchscreen capabilities and an improved user interface.

Spectrum Analyzer using Beaglebone Black and RTL-SDR

New (Work In Progress) WebRadio Software for the RTL-SDR Released

Mike Stirling has just released a still in-development version of his Linux based WebRadio software, which supports the RTL-SDR. WebRadio allows someone to connect to a remote RTL-SDR device via a web interface over the internet, much like WebSDR.

There is an installation guide here.

WebRadio

I was able to compile, install and run the software, but there were a few issues that required resolving.

Continue reading

AIS Decoding Video Tutorial with OpenCPN, AISMon and RTL-SDR

YouTube user Drvarnick has posted a good video tutorial on getting AIS decoding set up with the RTL-SDR using the free OpenCPN, AISMon, SDRSharp and VBCable Windows software programs.

We also have an AIS decoding tutorial blog post posted earlier in the year that shows similar steps at this link.

RTL-SDR AIS Reception-Decoding

KN0CK Miniature HF Upconverter Rev. 4 Now for Sale

Update: KN0CKs products are now available at http://www.kn0ck.com/HF_SDR/.

The fourth revision of the miniature HF upconverter for the RTL-SDR by KN0CK is up for sale, now that revision three has just sold out. Revision four has a 120 MHz oscillator, and is capable of receiving the 6m band.

Check out the release post over at KF7LZE’s blog, and the product sales page at the Easy-Kits store.

Receiver Opened Up

Tracking of Low Earth Orbit Satellites with the RTL-SDR

Over on travisgoodspeed.blogspot.com, Travis shows us an interesting project where he set up a satellite dish that automatically tracks and receives moving satellites, such as those in low earth orbit. Travis uses an old satellite dish salvaged from a maritime vessel as the receiving dish, a RTL-SDR for receiving the signal, and a BeagleBone for motor control and running rtl_tcp. The dish motors use satellite positional data from celestrak.com to automatically track a desired currently visible moving satellite.

tracking_satellite

GR-Air-Modes GNU Radio ADS-B Decoder for the RTL-SDR Updated

Reddit user bistromat has recently updated the GNU Radio based Mode S ADS-B decoder gr-air-modes. He has added Google maps view, a legend and zoom support to the azimuth map view, and has restructured the underlying code. The new gr-air-modes requires the latest GNU Radio 3.7 version.

Check out the original post here (with cute puppy included), and clone the latest version via github from the following link.

https://github.com/bistromath/gr-air-modes

gr-air-modes google maps screenshot

 

Decoding RDS in GNU Radio with the RTL-SDR

DangerousPrototypes.com have brought to attention a GNU Radio RDS decoding project from the website at Anotherurl. Check out the original post here. Anotherurl uses a GNU Radio Companion flowgraph and a .NET program to decode FM RDS messages. RDS is an acronym for Radio Data System, which is used in FM radio transmissions to embed information such as radio station and programme/song information. Some conventional FM radios display this information on an LCD screen. The popular SDRSharp SDR receiver also has RDS decoding built into it’s FM receiver already, but a GNU Radio implementation is very useful for learning how RDS works.

GNU Radio RDS Decoder

via dangerousprototypes.com