Re: installing RTL-SDR onto pi

David Cooley

That's the pipe symbol.  It's actually 2 vertical lines.  On the US keyboards it's usually the rightmost key above enter

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-------- Original Message --------
From: "'Robert' rbaker@... [Raspberry_Pi_4-Ham_RADIO]" <Raspberry_Pi_4-Ham_RADIO@...>
Sent: Monday, May 2, 2016 08:11 PM
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: RE: [Raspberry_Pi_4-Ham_RADIO] installing RTL-SDR onto pi


Further to this, have since been able to get it working by adding more in the line



Now I start doing the APRS side of it. Up to trying the following line, but can find what the symbol is infront of multimon-ng, it just looks like a line straight up and down.



rtl_fm -f 144.390M -s 22050 -p 2 -g 42.0 - | multimon-ng -a AFSK1200 -A -t raw -

Sorry for been a pain.







From: Raspberry_Pi_4-Ham_RADIO@... [mailto:Raspberry_Pi_4-Ham_RADIO@...]
Sent: Tuesday, 3 May 2016 11:30 AM
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: RE: [Raspberry_Pi_4-Ham_RADIO] installing RTL-SDR onto pi



Hi All again.


Ok, restarted from scratch, and all went good until I did a rtl_test.

Now I get the following:

Found 1 device(s):

0: Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM


Kernel driver is active, or devic is claimed by second instance of librtlsdr.

In the first case, please either detach or blacklist the kernel module (dvd_usb_rtl28xxu), or enable automatic detaching at compile time.


Usb_claim_interface error -6

Failed to open rtlsdr device #0


I originally at in the blacklist.config:

Blacklist dvb_usb_rtl28xxu

Blacklist rtl_2832

Blacklist rtl_2830


But then removed them from the config when I got this error first, but made no difference.






From: Raspberry_Pi_4-Ham_RADIO@... [mailto:Raspberry_Pi_4-Ham_RADIO@...]
Sent: Friday, 29 April 2016 3:19 AM
To: Raspberry_Pi_4-Ham_RADIO@...
Subject: Re: [Raspberry_Pi_4-Ham_RADIO] installing RTL-SDR onto pi



Hello Robert,

I'm wondering why you don't just do:

apt-get install rtl-sdr

Best regards,

On 28 Apr 2016 00:14:14 -0700, "rbaker@... [Raspberry_Pi_4-Ham_RADIO]"
<Raspberry_Pi_4-Ham_RADIO@...> wrote:

>Hi All.
> Now, installing the rtl-sdr info, but got a fair way through the instalation, but cant do a cmake bit.
> This is what Im doing.
> sudo nano /etc/modprobe.d/raspi-blacklist.conf
> Add the following lines to the end of the file so the OS does not load the default drivers for the dongle
> blacklist dvb_usb_rtl28xxu
> blacklist rtl_2832
> blacklist rtl_2830
> Reboot
> sudo reboot
> Create a directory for the new RTL software
> mkdir ~/rtl
> Install new rtl driver and software
> cd ~/rtl
> sudo apt-get install git build-essential cmake libusb-1.0-0-dev
> sudo git clone git://
> cd rtl-sdr
> mkdir build
> cd build
> make
> sudo make install
> sudo ldconfig
> Install Sox (this will help further test and troubleshoot the SDR RTL dongle)
> sudo apt-get install sox
> But I get to cmake .. -DINSTALL_UDEV_RULES=ON but get and error, not letting me to continue.
> Any suggestion what I may be doing wrong
> Regards
> Robert

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