Funcube Dongle Pro+ V2.0

[Aged Ham]

How do I enable support for the Funcube Dongle Pro + V2.0? GRQX and SDRAngel are unable to open the dongle, it appears as an audio input device on PulseAudio.

[Cemaxecuter]

I'm not super familiar with the Funcube, but I'm looking at this now

https://github.com/pothosware/SoapyFCDPP

I also see this old discussion

https://github.com/f4exb/sdrangel/issues/1266

I don't have a solution yet, except that maybe you could try this and possibly gqrx/cubicsdr/sigdigger would see it.

~~~

Clone the SoapyFCDPP repository

git clone https://github.com/pothosware/SoapyFCDPP.git
cd SoapyFCDPP

Create build directory and navigate into it

mkdir build && cd build

Configure with CMake

cmake ../

Build and install

make && sudo make install
sudo ldconfig

Echo udev rules into the file

sudo bash -c 'cat <<eof> /etc/udev/rules.d/81-funcube.rules
SUBSYSTEMS=="usb", ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="fb56", GROUP="audio", MODE="0666", SYMLINK+="usbfcd1"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="fb31", GROUP="audio", MODE="0666", SYMLINK+="usbfcd2"
EOF'</eof>

Reload udev rules

sudo udevadm control --reload-rules && sudo udevadm trigger~~~

[Aged Ham]

Thank You! I'll give it a try.

[Jan OZ1OY]

First of all - so many thanks to Cemaxecuter for the DragonOS Linux distribution.
I am a only Linux Ham user and very glad to see and try to use SigDigger.

I have tried to install the SoapyFCDPP driver and went well. But when I start SigDigger and select SoapyFCDPP as the device without changing the Soapy parameters, I get a very high spectrum around 0 dBFS. The waterfall is all red/yellow and it will not help to set all gains to zero.

What kind of log files or images can I provide?

[Jan OZ1OY]

This is a printout from Soapy:

$ SoapySDRUtil --probe="driver=fcdpp"
######################################################
##     Soapy SDR -- the SDR abstraction library     ##
######################################################

Probe device driver=fcdpp
[WARNING] SoapyVOLKConverters: no VOLK config file found. Run volk_profile for best performance.
[INFO] makeFCDPP
[INFO] listAntennas
[INFO] listFrequencies
[INFO] getFrequencyRange
[INFO] getBandwidth
[INFO] listFrequencies
[INFO] getFrequencyRange
[INFO] getFrequencyArgsInfo
[INFO] listSampleRates
[INFO] listBandwidths

----------------------------------------------------
-- Device identification
----------------------------------------------------
  driver=FCDPP
  hardware=FCDPP

----------------------------------------------------
-- Peripheral summary
----------------------------------------------------
  Channels: 1 Rx, 0 Tx
  Timestamps: NO
  Other Settings:
     * period [key=period, default=0, type=int, range=[192, 96000, 1920]]

----------------------------------------------------
-- RX Channel 0
----------------------------------------------------
  Full-duplex: NO
  Supports AGC: NO
  Stream formats: CS16, CF32
  Native format: CS16 [full-scale=32767]
  Antennas: Bias_T_Off, Bias_T_On
  Full gain range: [0, 89] dB
    LNA gain range: [0, 10, 10] dB
    Mixer gain range: [0, 20, 20] dB
    IF gain range: [0, 59, 1] dB
  Full freq range: [0.15, 240], [420, 1900] MHz
    RF freq range: [0.15, 240], [420, 1900] MHz
  Sample rates: 0.192 MSps

I was able to get the frequency signal in the scope by reducing Gain in FFT to 0 dB. See screen shot in attachments.

[Cemaxecuter]

I’m curious what happens if you toggle on/off the auto gain, I recall seeing it where it was stuck on by default. I really need to get one of those dongles to try it out.

Sent from Proton Mail for iOS

On Fri, Jan 24, 2025 at 11:33 AM, Jan OZ1OY <jan-oz1oy@users.sourceforge.net> wrote:

This is a printout from Soapy:
~~~
$ SoapySDRUtil --probe="driver=fcdpp"

Soapy SDR -- the SDR abstraction library

Probe device driver=fcdpp
[WARNING] SoapyVOLKConverters: no VOLK config file found. Run volk_profile for best performance.
[INFO] makeFCDPP
[INFO] listAntennas
[INFO] listFrequencies
[INFO] getFrequencyRange
[INFO] getBandwidth
[INFO] listFrequencies
[INFO] getFrequencyRange
[INFO] getFrequencyArgsInfo
[INFO] listSampleRates
[INFO] listBandwidths

---

-- Device identification

driver=FCDPP
hardware=FCDPP

---

-- Peripheral summary

Channels: 1 Rx, 0 Tx
Timestamps: NO
Other Settings:
* period [key=period, default=0, type=int, range=[192, 96000, 1920]]

---

-- RX Channel 0

Full-duplex: NO
Supports AGC: NO
Stream formats: CS16, CF32
Native format: CS16 [full-scale=32767]
Antennas: Bias_T_Off, Bias_T_On
Full gain range: [0, 89] dB
LNA gain range: [0, 10, 10] dB
Mixer gain range: [0, 20, 20] dB
IF gain range: [0, 59, 1] dB
Full freq range: [0.15, 240], [420, 1900] MHz
RF freq range: [0.15, 240], [420, 1900] MHz
Sample rates: 0.192 MSps

~~~

I was able to get the frequency signal in the scope by reducing Gain in FFT to 0 dB. See screen shot in attachments.

Attachments:

• FunCube.jpg (177.1 kB; image/jpeg)

---

Funcube Dongle Pro+ V2.0

---

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[Jan OZ1OY]

I have no errors when switching to/from Disable/Slow/Normal/Fast in the Gain control. Audio is stable and I use PulseAudio Sound Server in the Setting -> Audio output.

But talking about Audio preview: In Demodulator FM the SQL botton works, but "Squelch at" value 0.0 is greyed out. Isn't normal to set a squelch level for FM?

I can do other testing with FCDPP if you like.

73 Jan