![]() ![]() These programs can interface with the listed SDRs without the use of additional cables some may require a set of DLLs to be installed. Please notice that I took screenshot after keyer finished, so that no signal appearing in waterfall.This page is devoted to identifying those SDRs that can either directly interface with various digital decoding programs, or DSP audio programs.įor the purpose of this page, we are not considering the multi-kilobuck professional SDRs, as most hobbyists could never easily afford them.Ĭorrections and additions to this page are solicited.ĭigital Decoding Software that can interface with SDRs For example, "TNX" mean "Thank you" "QSO" mean a wireless (radio) communication. Please notice that Morse keyers using abbreviation heavily. " But it appeared as "T N X N I C E R W QSO. Try to read & you will understand what keyer saying: If she/he was use electronic key the character would be grouped in words. ![]() This decoding HAS NO ANY * This mean that there is no any invalid character !! The only thing wrong is that the characters not grouped in words & this due to fact that the user (keyer) using MANUAL KEY not electronic key. When you achieve this, the program will decode correctly ! If central line not at middle, then try to shift frequency lower/upper till see it at middle. Just when you set on CW mode & get Morse signal, it will appear in spectrum so that central line stand at it's middle in spectrum (waterfall). Issue solved ! This program NOT working with USB or LSB modulation ! You need to use CW mode. Regarding 2nd program, morse2txt, I tried to apply a similar solution but I did not get such thing ! Moreover, I have bad QRM (man made noise RFI) since I'm living in vertical building & QRM eliminator is out of my hand because Shanghai is still not fully re-opened so I can not receive goods from AliExpress via my forwarder company. This may be related to 2nd factor, which is:Ģ) currently, there is bad propagation on HF. Also, ratio when decreased it will make program decode nearly every things. As quick note, I noted that program not decode unless I decrease "level" in threshold to 0 or 1. I suspect this happening due to 2 factors:ġ) my setting is wrong (program setting). To me text appearing to me & program working to decode BUT DECODED TEXT IS MEANINGLESS. ![]() Regarding "xdemorse" issue solved ! Yes, you need to change sound card name from "hw:0" into "pipewire" in file ~/.xdemorse/xdemorserc & save, then it will working to you ! Many thanks for RupertPupkin & hmmsjan for nice support ! Last edited by hmmsjan 1st June 2022 at 10:21 AM. The program does not show up in pavucontrol or qjackctl due to the direct alsa access. Sorry: first experiment will not work on a laptop, because the mics are always connected, so pipewire always claims playback, capture and monitor.Įdit2: due to unknown reasons, the program runs on my laptop without complaints and pics up the mic sound. You can revert to working audio with 4 times "systemctl -user enable -now" followed by the same services in reverse order.įor the moment I can forget the WebSDR, the xdecodemorse is invisible in pavucontrol or qjackctl, but I'll try to find a trick. Assuming that you feed the sound card from a receiver. The complete audio system is now disabled, but probably the xdecodemorse has access now. Second experiment, but your sound card audio gets lost, 4 times "systemctl -user disable -now " followed by wireplumber, pipewire-pulse, pipewire, pipewire.socket. So this leads to the experiment: disconnect soundcard input, start xdecodemorse, reconnect soundcard input. The program runs only with hw:1, but the inputs are not connected so pipewire is apparently not interested. I've a webcam which is alsa hw:0, and a PC sound card hw:1. However, the program tries to access the hardware directly via ALSA, and at the moment there is an audio server system, pipewire, implemented which takes care of the audio card. Interesting, I do not have a receiver but may be I can connect it to the WebSDR receiver of Twente University.
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