Quote from: Bas ON5HB on Today at 17:46This is an SDRplay problem, it should not matter how fast Nova sends commands to Soapy.
I had the same problems before with the RSP-TCP server.
This is a problem of SDRplay.

Their API is buggy. V2.13 has the same problems, so I wonder if the chip has a problem.
As I have seen it many times, the chip just stops responding until you remove USB and plug it back in.

There's lots of info here too pointing to the SDRPlay API and this exact issue.

https://groups.io/g/SDRPlayUsers/topic/selectdevice_error/104335929

This is an SDRplay problem, it should not matter how fast Nova sends commands to Soapy.
I had the same problems before with the RSP-TCP server.
This is a problem of SDRplay.

Their API is buggy. V2.13 has the same problems, so I wonder if the chip has a problem.
As I have seen it many times, the chip just stops responding until you remove USB and plug it back in.

I am going to remove the SDRplay API v 3 and move back to v2 and try that.

I am seeing this upon startup if I try to use more than one RSP1a.

2026-01-10T11:54:06.996194Z  INFO novasdr-dsp-rx1 ThreadId(08) novasdr_server::dsp_runner: DSP thread started receiver_id=rx1
2026-01-10T11:54:06.996210Z  INFO            main ThreadId(01) novasdr_server::app: server listening bind=[::]:80
2026-01-10T11:54:06.996274Z  INFO novasdr-dsp-rx0 ThreadId(09) novasdr_server::dsp_runner: DSP thread started receiver_id=rx0
[INFO] devIdx: 0
[INFO] SerNo: 18070E4096
[INFO] hwVer: 255
[INFO] rspDuoMode: 0
[INFO] tuner: 1
[INFO] rspDuoSampleFreq: 0.000000
[INFO] Using format CS16.
[INFO] devIdx: 0
[INFO] SerNo: 19110CDF97
[INFO] hwVer: 255
[INFO] rspDuoMode: 0
[INFO] tuner: 1
[INFO] rspDuoSampleFreq: 0.000000
[ERROR] SelectDevice Error: sdrplay_api_Fail
2026-01-10T11:54:07.088402Z ERROR novasdr-dsp-rx0 ThreadId(09) novasdr_server::dsp_runner: DSP loop terminated receiver_id=rx0 error=open SoapySDR device

Caused by:
    Other: SelectDevice() failed

I am concerned at the devIdx: 0 being on both receivers.

Phil

Install clinfo

apt install clinfo

You will use that command to determine when you get your OpenCL drivers installed.

Then, you need to install OpenCL for your GPU.

Phil

Hello, I am so excited to try this out. I do not want to waste anyone time but I am having a really tough time with the install for both Linux and Windows. I apologize for my ignorance

I tried loading ubuntu in a vm to use the one line linux script, everything worked except the radio, soapysdr saw it,  I arrowed down to use soapysdr as input, I have tried cs16 cf32 but I receive this error. 

With the windows install, I get to the point where it asks me which DSP accelerator to use, I chose clfft as github instructs it along with soapysdr. I cannot get it to launch after exiting the wizard. I am doing something wrong I just don't know what. Should I use Stdin instead of soapysdr for windows?

Take care and thank you for creating this!

Changelog
0.2.8 - 2026-01-07
Fixed

    SSB (USB/LSB) mode switching no longer shifts the displayed tuned frequency due to passband quantization.
    SSB bandwidth readout no longer jumps when toggling between USB and LSB.


Sorry, it still does. Maybe not in I/Q mode but the RX888 Real mode is still jumping.
Also wrong BW when entering the GUI, 2.75Khz instead of 2.70.

Hi all,

If you downloaded Nova from github with 'git clone' command, updating is simple.
Here is a simple script to do it for you.

compile.sh (chmod +x) after you made it:

git pull

cargo build -p novasdr-server --release --features "soapysdr,clfft"

cd frontend

npm ci

npm run build

cd ..

exit



That's it.

BTW, I do run the compiling in a seperate directory and only copy dist and binary to the RUN directory, so I make sure nothing is overwritten.

Sure, following the configuration file receivers.json:

{
  "receivers": [
    {
      "id": "rx0",
      "input": {
        "accelerator": "none",
        "audio_compression": "flac",
        "audio_sps": 12000,
        "brightness_offset": 0,
        "defaults": {
          "frequency": 14200000,
          "modulation": "USB",
          "ssb_highcut_hz": 3000,
          "ssb_lowcut_hz": 300
        },
        "driver": {
          "channel": 0,
          "device": "driver=rtlsdr, label=Generic RTL2832U OEM :: 00000001, manufacturer=Realtek, product=RTL2838UHIDIR, serial=00000001, tuner=Rafael Micro>
          "format": "cs16",
          "kind": "soapysdr",
          "settings": {
            "direct_samp": "2"
          }
        },
        "fft_size": 131072,
        "frequency": 14175000,
        "signal": "iq",
        "smeter_offset": 0,
        "sps": 1024000,
        "waterfall_compression": "zstd",
        "waterfall_size": 1024
      },
      "name": "rtl-sdr"
    }
  ]
}


Hello!

I ask the developer to enable a dark version of https://sdr-list.xyz.

The transition from the pleasantly dark NovaSDR to the
completely white https://sdr-list.xyz is a shock to my old eyes.

I don't know what other colleagues think about it.

Best regards,
Darko, 9a7aof