SDR RTTY DECODER SOFTWARE
I will say that most of the programs that work with the economy-mined SDRplay don't have a true virtual audio cable connection and that most digital-mode software struggles to cope the audio that passes through the entirety of the Windows audio subsystem (assuming you're using Windows, no OS detail). I'm sure many of us would like to help, myself included, but there isn't a lot in the way of detail in this post. I am an engineer and have to deal with complex applications all day at work but geeez these programs seem mysterious when it comes to actually making them function.Ĭlick to expand.This would have gotten more visibility in the "Working Other Modes" forum.
SDR RTTY DECODER HOW TO
I would also pay for a decent decoder program (IF IT WORKED!).Īnyway, just looking for some advice on which programs to use and how to set them up. If someone made an SDR interface that did the control functions of the radio and could decode many modes I would buy it but I don't see that out there. VB Audio is the worst setup wise.can't make heads or tails out of how to use it. None of the virtual audio programs have a decent UI that is intuitive. I can copy CW up to about 12 wpm manually but I want to copy not only CW but various forms of RTTY etc. Also, when I try to select the sound card input CW get offers me only one selection which is the mic input not audio or playback.
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Both CW GEt and CW decoder give me random garbage (ee eee ee or tt t ttt t). I have set up several virtual audio programs and so far no luck. I have tried several like CWGet and CW Decoder etc. Good places to find these are in the Amateur Radio Bands around 3500-3550 KHz and 7000-7050 KHz.I set up my SDR play and have been having a lot of fun with it but I want to be able to figure out how to decode various data and CW signals. Start Cubic SDR, set mode for LSB, and tune in a CW signal.In the following example, we run CubicSDR and use FLdigi to decode CW tapping the audio out from CubicSDR via the “Built-in Audio Analog Stereo” interface. For Linux there is a hidden device called “Built-in Audio Analog Stereo.” Setup and Use The RTL-SDR site provides easy instructions on how to enable the hidden device under Windows 7. In Windows you will find a hidden recording device called “Stereo Mix” that can be used. To pipe audio-out from one application to audio-in of another application we need to setup an intermediate sound interface. Otherwise leave callsign blank and click next through the wizard screens insuring at the Audio Device screen PortAudio is checked and the relevant sound card is selected. If you have an Amateur Radio license, answer the relevant files in the questions presented.
SDR RTTY DECODER INSTALL
For Linux releases, search and install Fldigi from your distribution repository.įirst time you run Fldigi you will be walked through the installation wizard.
SDR RTTY DECODER MAC OSX
You can download the Windows or Mac OSX versions and run to install. Since RTL-SDRs are not transmitters, we will be receiving only. In essence, Fldigi allows your soundcard to be used as a modem for receiving an sending a range of digital modes. Fldigi is comprehensive in the range of digital modes it is capable of decoding and is available on Windows, Linux, and OSX. The digital modes you most readily find and able to decode on HF are used in Amateur Radio. It doesn’t matter whether you follow the client/server use model I run with or connecting a RTL-SDR dongle directly to your machine with the SoapySDR drivers, decoding digital modes is the same since we are working with the audio out of the SDR application.
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A previous post of mine goes into how to install it across platforms. CubicSDRĬubicSDR will be our SDR application of choice. We will stick with using cross-platform applications for Linux, Mac OSX, and Windows. Let’s start with the software applications we will be using and then with how piping audio from one to the other is done. Some SDR applications have plugins to facilitate decoding but may have complex dependencies tp be pre-installed/comfigured (SDR# comes to mind.) For this post I am going to focus on decoding the more popular digital modes you will find on HF by piping audio-out from from the SDR application to audio-in on a decoder application. While hearing shortwave broadcasts, trans-atlantic aviation, and Amateur Radio conversations are interesting, there are a number interesting digital mode signals to tune into. In previous posts I’ve showed how to build a network accessible SDR server and tested SDR client applications running on Linux, Mac OSX, and Windows.