Why do you use STDIN for just 5Mhz? You can let Soapy handle it.
Are you using the GPU for acceleration?

Have you made any adjustments based on this document?

https://github.com/Steven9101/NovaSDR/wiki/TROUBLESHOOTING

I do see what you mean as your waterfall seems to move in steps > 1.

73,
Phil

I can't figure out why the waterfall moves in jerks. Will transmitting data through FIFO instead of stdout help?

http://websdr.srr-76.ru:8095

I wonder if some thought is being given to those using with a laptop and touchpad. It's fairly difficult to expand/shrink the waterfall this way. I understand it may be easier with a mouse wheel. Not really ant better with a touchscreen display. Kludgy at best. Unless there is a current provision for this that I'm not aware of.

For instance, just trying to zoom in/out to the most active SSB portion of 10m and I end up over in CB bands.

Maybe some kind of key combination that allows for expand/contract based around a central frequency is what I'm wondering/thinking about.

Also, I know keyboard scrolling was added after a while in the previous release. I really like to use arrow keys to scroll rather than having to find the -/+ Freq. adjust buttons.

This topic has been moved to Wishlist.

https://www.novasdr.fun/index.php?topic=46.0

In my opinion, the waterfall speed is very low. Maybe add a setting for this?

Airspy Discovery....also very simple...I use serial-number (if you have more):

airspyhf_rx -s "0xDD52EB5DAC3839F7" -f 0.456 -a 912000 -r stdout > $FIFO2 &

Receivers.json

    {
      "id": "rx3",
      "input": {
        "accelerator": "clfft",
        "audio_compression": "adpcm",
        "audio_sps": 12000,
        "brightness_offset": 0,
        "defaults": {
          "frequency": 648000,
          "modulation": "AM",
          "squelch_enabled": false
        },
        "driver": {
          "format": "cf32",
          "kind": "fifo",
          "path": "rx2.fifo"
        },
        "fft_size": 131072,
        "frequency": 456000,
        "signal": "iq",
        "smeter_offset": -40,
        "sps": 912000,
        "waterfall_compression": "zstd",
        "waterfall_size": 2048
      },
      "name": "Airspy Disco"
    }

Airspy can be installed with 'apt install airspy*' installs both Airspy (R2+Mini) and AirspyHF (Disco+HF)

Not that hard to make working.

To add an RSP1....patched player version 2.13 API : https://github.com/ON5HB/SDR_Play/tree/main


Line
play_sdr -f 1024000 -s 2048000 -R 40 -l 1 -n 0 -x 16 - > $FIFO1 &

Receivers.config

    {
      "id": "rx3",
      "input": {
        "accelerator": "clfft",
        "audio_compression": "adpcm",
        "audio_sps": 12000,
        "brightness_offset": -6,
        "defaults": {
          "frequency": 648000,
          "modulation": "AM",
          "squelch_enabled": false
        },
        "driver": {
          "format": "s16",
          "kind": "fifo",
          "path": "rx1.fifo"
        },
        "fft_size": 131072,
        "frequency": 1024000,
        "signal": "iq",
        "smeter_offset": -50,
        "sps": 2048000,
        "waterfall_compression": "zstd",
        "waterfall_size": 2048
      },
      "name": "SDRplay RSP2"
    }


That's it.

Hi Steven,

I removed a receiver, and it stopped working, no idea why.
It also kept giving me 'configure'

Later I noticed it was calling config::active receiver::rx3, but that didn't exsists anymore.

Better solution, if not exsists, use FIRST receiver. In short, ignore the setting IF false.

Hi all,

Since a bit we have the option to give every receiver a fifo input, this works the same as stdin, but you can run all of them this way. I do not want to use Soapy as fifo is much easier.

Here we go make a start-websdr.sh script:
#!/bin/bash
cd /opt/novasdr/

# kill nova and all receivers

killall -s 9 novasdr-server
killall -s 9 rx888

## Files to load
FIFO0=rx0.fifo
#FIFO1=rx1.fifo
#FIFO2=rx2.fifo
#FIFO3=rx3.fifo
#FIFO4=rx4.fifo

## Make all fifo's
[ ! -e "$FIFO0" ] && mkfifo $FIFO0
#[ ! -e "$FIFO1" ] && mkfifo $FIFO1
#[ ! -e "$FIFO2" ] && mkfifo $FIFO2
#[ ! -e "$FIFO3" ] && mkfifo $FIFO3
#[ ! -e "$FIFO4" ] && mkfifo $FIFO4

# Push all receivers into fifox

./rx888_stream/target/release/rx888_stream -f ./rx888_stream/SDDC_FX3.img -s 60000000 -g 50 -m low -o - > $FIFO0 &

sleep 3

#next receiver

#sleep 3

# Start nova itself

./novasdr-server --no-file-log

Make stop-websdr.sh:

#!/bin/bash
cd /opt/novasdr/

killall -s 9 novasdr-server

exit

You can also kill all reaceivers in the stop-script if you want, no need to remove the fifo's.

Make a systemd script like this: nano /usr/lib/systemd/system/websdr.service

[Unit]
Description=NovaSDR WebSDR
After=network-online.target

[Service]
Type=exec
ExecStart=/opt/novasdr/start-websdr.sh
ExecStop=/opt/novasdr/stop-websdr.sh
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target

'systemctl enable websdr' to make it startable.

Next run 'nova-sdr-server configure' and make it set this:

    {
      "id": "rx0",
      "input": {
        "accelerator": "clfft",
        "audio_compression": "adpcm",
        "audio_sps": 12000,
        "brightness_offset": 0,
        "defaults": {
          "frequency": 3630000,
          "modulation": "LSB",
          "ssb_highcut_hz": 2800,
          "ssb_lowcut_hz": 100
        },
        "driver": {
          "format": "s16",
          "kind": "fifo",
          "path": "rx0.fifo"
        },
        "fft_size": 524288,
        "fft_threads": 2,
        "frequency": 0,
        "signal": "real",
        "smeter_offset": -30,
        "sps": 60000000,
        "ssb_highcut_hz": 2800,
        "ssb_lowcut_hz": 100,
        "waterfall_compression": "zstd",
        "waterfall_size": 2048
      },
      "name": "RX888MK2 (0-30MHz)"
    },

After you are done: 'systemctl start websdr' (or reboot)

Now your websdr should run via fifo's, it's the same as stdin but piped to fifo, so you can run more then 1 receiver this way.