Ham Radio - SDR++, A new SDR program. Open source and cross platform! 

Good to see you're back! And thank you for pointing out SDR++. Will certainly try it in the coming time.

Thanks for taking the time to show Linux SDR software options.

Thanks Kevin. Nice job detailing this out. Looking forward to seeing the gang this year down south.

Thanks for the heads-up on this new program. I've been using CubicSDR with my RSP1 on my Mac, and this could be a good alternative as it develops further.

Thanks for sharing Kevin. Plan to give SDR++ a go. Tend to agree with your comments about being able to average the pan/waterfall. I still use what is now quite an old version of PowerSDR with a Flex-1500. Usually, I have the display set to average. I find the real-time type display distracting and can easily miss short duration signals.

Good timing. I just picked up an Elad FDM-DUO and played around with the SW2 application which is pretty nice, but I’m a Mac guy. From what I can see here, I will continue to use the SW2 app and work out a better approach than a Fusion VM of my Bootcamp partition (which actually works very well).

This dude has been crushing it, thanks for showing his work.

Hi Kevin, glad to see you back. Thanks fro the video. Sure hope they get SDRPlay to work properly. I have a RSP2 pro in the closet just waiting for some use...

That shifting of the received frequency is the software doing the shifting to match the correct match of the signal needed to decode a digital signal. Its the same thing wsjtx does when you operate ft8 its always shifting frequency to correct the tones to the best decode. A lot of people think its a problem but its normal. AA4CP Chuck Port Salerno FL USA

TNX for video. I am now using this software. Next, I want to build the 2 transistor 40 M transmitter I found from you.

Compiled on Arch. Works great! Great alternative to CubicSDR. My RSPdx will spend less time in the drawer.

Another great video -- well done, Kevin. Just a couple of points. I've been using SDR++ on Windows-10 for a couple of months, and like its GUI. Straight-forward, and easy to use. I have used it on three different types of SDRS -- Airspy HF+ Discovery, SDR-Radio RSP1, and generic RTLSDR, and all three have worked fine for me. I wonder if your problems with your RSP-DX have something to do with the compilation of the Linux version, such as you ran into with the stuttering problem with the audio. In my Windows-10 application, the RSP1 shows up just fine, both as a source, and also within the Module Manager as an 'SDRplay Source'. Do you have an 'option' in the Module Manager for the SDRplay? For what it's worth, I don't have Soapy SDR showing up as a source, nor in the module manager. Regarding center-tuning using the bullseye-mode in SDR++. I know that some SDR dongles exhibit a prominent DC-spike at the very center of where the SDR is tuned. That DC-spike can result in poor sensitivity at the center frequency where the receiver is tuned. This can be especially true of the 'generic' RTLSDR dongles using the RTL2832 chip depending on the specific driver DLL used, but I seem to recall seeing it on other SDRs (e.g., Discovery HF+, RSP1) . Depending on the SRD-processing software used (e.g., SDR++, SDR-Console, SDRSharp, HDSDR, etc.) , it might be called "DC-Removal", "IQ Correction", "Offset Tuning", or maybe even something else. Therefore, I tend *NOT* to use center-tuning, but rather use free-tuning and set the center frequency of the receiver a couple of kHz above or below my 'desired' listening frequency. Again, it depends on a combination of the SDR-processing software used, the SDR-dongle hardware architecture, and/or the specific driver used. Since I cannot guess which 'component(s)' is coming into play, I tend to avoid using a center-tuning mode in the SDR-software. A couple of other comments. SDR++ currently does not allow you to choose the audio baseband as a potential source for the software. Such an option can be useful if trying to "listen" to the SCA subcarrier signals in the FM band. In the past, SCA used to be employed to carry MUZAC "elevator" music, but nowadays tend to carry more public-interest programs. One can listen to the SCA subcarrier by using two SDR-processing software programs in sequence, the first to tune the SDR dongle to the desired FM station carrying the SCA signal, and then routing the audio to a second SDR program to 'decode' the audio baseband from the first SDR program. If you Google "FM SCA decoding", you can find several links and RU-vid videos describing the process of listening to SCA subcarriers. The SCA subcarrier tends to occur 67 kHz above the transmitter frequency of the FM station. One has to set the audio sampling frequency of the first SDR/receiver software to 192 ksps to pass the 67-kHz signal, and then "decode" the 67-kHz signal from the audio baseband with the second SDR software instance. Finally, I'm not quite sure what the "signal meter" in the upper right portion of the screen actually displays. I can't discern if it represents the signal level in dBuV. dBm, or the signal-noise-ratio (SDR). I haven't been able to locate any information on what the signal level 'meter' actually displays. Despite its issues, SDR++ is a great program. I'm sure some of these enhancements will come about as the program 'matures'. It's off to a good start. Thanks again for putting together the video, and keep up the great work. -- Ken - WBØOCV

Great your back, thanks for the video take it steady no need to get stressed over YTube. Hope you have some easier months and look forward to some more drone footage which was excellent. All th ebest 73's Andy M6APJ

Thanks man! I've been trying to get SDR sharp running in Wine on Zorin OS 16 for the last couple of weeks it's been driving me crazy! (I really hate when I can't get a software or code issue resolved). Anyway the deb installer for Ubuntu worked like clockwork, after installing I did have the choppy audio problem but rebuilding RTAudio with your help fixed that too! If I could I'd buy you a beer, a like and a follow will have to do instead :)

Another sad SDRPlay user here. I'm hoping this will work well with the Raspberry pi -- it would make a tidy little bundle! Using this as rigcontrol of the big radio would let us put a modern user interface on older rigs. Nice find, thanks for sharing!

This looks like an open source version of SDR Sharp!

Great video, thank you very much! How to do frequency correction in this program?

Hi Kevin, did you get to use your pre amp with the You-loop (as per last video), a quick update for this would be interesting. I have a You-Loop and knowing what pre-amp to buy would be good feedback.

Hi Kevin, I downloaded the binary on my Linux Mint 2.2 UMA and it works with my Sdrplay RSPdx. I used your install script to install GQRX/CubicSDR and SOAPYSDR a few weeks ago. I also had to install the rtaudio fix and make sure my audio device was selected but that's about it. Seems to work much better than GQRX or CubicSDR - less noise/static. I only tried it with FM stations with a whip antenna on Antenna C. Thank you for the tip off to the SDR++ program. I think SDRplay may never release a version of SDRuno for Linux at the rate they are going. Jerry, AC9NM

Just tried this tonight on my SDRplay...It's ok? any plans for Dmr decoding?

Great video! KC9QVE Marion,IN

Very good job!

Thank you for sharing. I have been looking for a reliable program to use with my SDRDuo under Ubuntu. I like the SDRPlay software, but I need something for Linux. I will keep an eye on this SW. Thanks, again.

wow your a ubuntu user :) good job keeping it gnu

Build from source and worked fine, two libraries missing need to get those first and then build it again..

In your video 23:40, it seems like you may already have the USB SDR tied up with the GQRX so it will not be accessible to the SDR++? Did you close out the GQRX program first? Just curious.

Hi Kevin, Thank you nice one I just installed sdr++ via focal .deb file and it finds and runs on my ubuntu 20.04lts only the sound is stuttering i will apply that audio fix you showed cheers Harm VK2DWT

I cannot see my RSP1 in SDR++. My quest is to get this to work. I'm missing something but I don't know what. 1. New install running popos. 2. Fully updated. 3. Downloaded API and installed. 4. Installed dependencies per website. 5. Downloaded SDR++ and installed. When I select SDRPlay my unit still does not show up. Where would I look to see what my issue is? I'm comfortable with the terminal so any commands there to help would be useful.

SDR++ looks very much like SDR#. I wonder if the modules for SDR# will work with SDR++?

thanks

Hope all is well. 🐈 “Dennis the Cat” 👋

that jumping around...can you set it Radio panel----on Snap Interval to zero or 10 maybe?

Can you do step by step video how to download and install sdr ++ on a windows?? It won’t install or am I supposed to do install some other way?? Is it not easy??

I've been using sdr++ for a while now :)

SDR++ has been around for a little while now when using the bullseye adjust your step rate that's what I do on my surface and I do the same thing when I'm using dragon OS that has a version of SDR++

I would change the snap interval to 1 if you don't want the reciever to "snap" to ta frequency

I installed this bag of crap on a Pi4 and experienced the same issues as you regarding it jumping all over the band in bullseye mode. On top of that it was as deaf as a post on the pi compared to the same RTL-SDR / antenna connected to a Windows laptop running SDR Console. I formatted the card and put the Pi to another use. It is definitely not a multi platform multi radio package no matter what they say.

I have the SDR Play DX,

Thanks for this review. Looks like a nice program, but what does this offer that is better than SDRsharp?

For SDRplay you need to have installed the API

Problem is: When I click the deb file it warns me it will remove libjack2, I need to do a forensics to make sure my Davinci Resolve installation did not install Libjack2 in order for Davinci ($$$$) to work. Be real careful if an install wants to remove anything. This is how one blows up linux. Now for a tech support call to Blackmagic/ DaVinci to make sure that software doesn't need it. I will still image my whole drive before I venture into anything that removes things.

I'm not able to open SDR++ using terminal on my Mac. Any ideas?

how do i get this to install on windows 10? i downloaded the application clicked on the exe and i get this error:"the code execution cannot proceed because vcruntime140_1.dll was not found. reinstalling the program may fix this problem." . reinstalling the program may fix this problem." what program? i've redownloaded the file unzipped it, and still the error. i found the things that sounded like i have to have an entire c++ library and recode this program. WTF. anyone use windows on this thing?

I just DLed it. But I don't see my SDRPlay device in the choices window. Hmm.

Will this work with the Raspberry Pi?

SDR Sharp no2

23:52 click refresh...😉

its annoying that the SDRPlay doesn't get better support ... I'ts superb 'hardware' I love my RSPdx and its so frustrating.

If they are using the FFT for filtering purposes then 4096 bins is the way to go.

Having a hard time getting it to work on windows

how to install it on kali linux? please

Oh also, that bug may just be usb related.

This looks like an upgraded SDR#.

How did you ever get this working? I think it's fake since in Windows it can't find the SDR and there are no options under Source so it won't do anything!

I should have read some comments first. I see this is a common problem?

NO TX sink, Yet !

You must have the Early Version, because the Lay out is a Little Deferent,

Well, you usually said "click" but when you started you said "double-click". The bullseye-bug behaviour you describe could maybe be caused if you double-clicked in a situation where you're really supposed to single-click.

And it sucks since I can't get it to work with my RTLs. The coder is less than helpful too.

Greetings from Mexico. I find this video very interesting, I would like you to help me to start operating my SDRPlay RSP2 in Linux ubuntu operating system. Thank you! Martin. XE1024SWL, XE1MHJ.