Hi!
Today I will show how to make remote SDR radio server for RTL2832u dongle with very small and cheap device such as NanoPi NEO.
The main purpose of this is that I want place the NanoPI with RTL dongle and antenna attached to it on remote location – on high building 250 meters far away from my home. I have wireless bridge connecting my home with this place.
On NanoPi I installed Armian Linux. After that I was set up rtl_tcp server:
900001 – this is lowest sample-rate which can be used, I used lowest because my wireless bridge wasn’t able to pass more traffic.
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apt-get install rtl-sdr; rtl_tcp -a 0.0.0.0 -s 900001 |
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_ _ ____ _ _ _ | \ | | __ _ _ __ ___ | _ \(_) | \ | | ___ ___ | \| |/ _` | '_ \ / _ \| |_) | | | \| |/ _ \/ _ \ | |\ | (_| | | | | (_) | __/| | | |\ | __/ (_) | |_| \_|\__,_|_| |_|\___/|_| |_| |_| \_|\___|\___/ Welcome to ARMBIAN 5.25 stable Ubuntu 16.04.1 LTS 4.9.4-sun8i System load: 0.44 Up time: 7 days Memory usage: 4 % of 497Mb IP: 192.168.51.30 CPU temp: 34°C Usage of /: 17% of 14G [ 23 updates to install: apt-get upgrade ] Last login: Fri Feb 17 00:16:31 2017 from 192.168.51.24 root@nanopineo:~# apt-get install rtl-sdr Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: rtl-sdr 0 upgraded, 1 newly installed, 0 to remove and 23 not upgraded. Need to get 0 B/50.0 kB of archives. After this operation, 159 kB of additional disk space will be used. Selecting previously unselected package rtl-sdr. (Reading database ... 75756 files and directories currently installed.) Preparing to unpack .../rtl-sdr_0.5.3-5_armhf.deb ... Unpacking rtl-sdr (0.5.3-5) ... Processing triggers for man-db (2.7.5-1) ... Setting up rtl-sdr (0.5.3-5) ... root@nanopineo:~# rtl_tcp -a 0.0.0.0 -s 900001 Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001 Using device 0: Lifeview LV5TDeluxe Found Fitipower FC0013 tuner Exact sample rate is: 900001.019241 Hz Tuned to 100000000 Hz. listening... Use the device argument 'rtl_tcp=0.0.0.0:1234' in OsmoSDR (gr-osmosdr) source to receive samples in GRC and control rtl_tcp parameters (frequency, gain, ...). |
The next step was to setup and start gqrx on my home computer:
Notice: Input rate must be the same as set on rtl_tcp server. 192.168.51.30 – this is IP address of my NanoPi.
And now, we can hear everything around us 🙂
