====RTL-SDR====

===Install===

==Fetch source==

<code>
git clone https://github.com/osmocom/rtl-sdr rtl-sdr-osmocom
cd rtl-sdr-osmocom
git rev-parse HEAD
619ac3186ea0ffc092615e1f59f7397e5e6f668c
</code>

==Download patch==

{{:tools:blinick-wip_rtltcp_ringbuf.diff|blinick-wip_rtltcp_ringbuf.diff}}

==Apply patch==

<code>
patch -p 1 < blinick-wip_rtltcp_ringbuf.diff
patching file src/rtl_tcp.c

</code>

==Make==

<code>
cmake -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON .
make
sudo make install
sudo ldconfig
</code>

===RTL_TCP====

<code>
/usr/local/bin/rtl_tcp -a 0.0.0.0 -s 2048000
</code>

==R820T2==

Range approx. 24 - 1760 MHz but with reduced performance over 1500 MHz.
<code>
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Detached kernel driver
Found Rafael Micro R820T tuner
[R82XX] PLL not locked!
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, ...).
</code>

==E4000==

Range approx. 54 - 2147 MHz, but no coverage between 1100 - 1250 MHz.

<code>
Found 1 device(s):
  0:  Compro, VMU6xx, SN: 0020

Using device 0: Compro Videomate U680F
Found Elonics E4000 tuner
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, ...).
</code>

You can now connect to the Linux host using AIRSPY SDR# Studio.
===Resources===

[[https://github.com/osmocom/rtl-sdr/pull/6|Patch thread]]

{{downloads:hb9ajg.pdf|Some Measurements on E4000 and R820 Tuners}}