Hackrf one software download
In the DC system, the audio is digitally encoded using the P25 CAI process. This process will start to process and decode the part of the radio spectrum for that channel which the SDR is already pulling in. When a channel is granted to a talkgroup, the system creates a monitoring process. In order to follow all of the transmissions, this system constantly listens to and decodes the control channel. This lets the talker know what channel to transmit on and anyone who is a member of the talkgroup know that they should listen to that channel. The system then assigns them a channel and sends a Channel Grant message on the control channel. When someone wants to talk, they send a message on the control channel. In a Trunking system, one of the radio channels is set aside for to manage the assignment of radio channels to talkgroups. Here is a little background on trunking radio systems, for those not familiar. The Radio Capture system took a similar approach, except made it work for a system with digital voice channels. It monitor a trunked system with analog channels. The Super Trunking Scanner took it a step further and made it playable over the web.
#HACKRF ONE SOFTWARE DOWNLOAD CODE#
The code from Nick Foster, GR-SmartNet, seems to be the first out there, and the only publicly available code. Luckily for me, a couple of people have already setup systems that do exactly that.
#HACKRF ONE SOFTWARE DOWNLOAD ARCHIVE#
Since you are doing the processing on a computer you can easily save and archive the transmissions, which you sort of needed since you could be getting a couple at once. Since an SDR can receive a wide swatch a spectrum at once and all the processing happens on the computer, you can decode multiple transmissions. However, these scanners can only follow one conversation on a system on a time. Radio Shack sells a bunch of different scanners that can do it. Of course monitoring a radio system is nothing new. What I have been focusing on is trying to monitor the radio system that the Washington, DC Fire/EMS & City Services use. There are an endless number of things to try. It use the popular Osmosdr drivers, so it works with a lot of existing things and plugs right into GNURadio. You can do a lot of things with this board. One of the most impressive stats is that the target price is $300. The original target amount was $80k and it quickly blew through that and ended up raising $600k. In order to go into production, a Kickstarter project was put together. The design work for it was funded by DARPA and I got one of the boards from that pre-production run. It is Open Source Hardware too, so if you are wicked smart you can build your own boards. It is an amazing piece of Hardware, capable of sending or receiving 20MHz of spectrum between ~13MHz – 6GHz. I was one of the lucky recipients of a great SDR, the HackRF Jawbreaker. That is half the fun though, boldly coding where few have coded before. There are a lot of rough edges and ways you can mess things up. There is tons of flexibility… and that is also a challenge. It pass you the raw information and you use a computer to filter out a transmission and process the signal. For the uninitiated, they let you receive a lot of radio signal over a wide range of frequencies. Software Defined Radios are pretty awesome. If you want more background on how it works, read on… You can narrow the list of calls display to specific group using the filters.Īnyhow, give it a try at and let me know what you think. Better yet, if you hit the Autoplay button in the upper left hand corner, it will automatically play through the list of calls. Thanks to the magic websockets, any new call that comes in gets added to the top of the list. Everything gets recorded and can be played back through a website.
After a bit of work, I have put together a system that lets you monitor the radio system for DC Fire, EMS & City Services.