RTL-SDR gain steps

 It was hard to find the gain steps for a NOOELEC SDR therefore i will put them here:

RTL2832U
NOOELEC	Generic SDR
49.6	49.6
48	48
44.5	44.5
43.9	43.9
43.4	43.4
42.1	42.1
40.2	40.2
38.6	38.6
37.2	37.2
36.4	36.4
33.8	33.8
32.8	32.8
29.7	29.7
28	28
25.4	25.4
22.9	22.9
20.7	20.7
19.7	19.7
16.6	16.6
15.7	15.7
14.4	14.4
12.5	12.5
8.7	8.7
7.7	7.7
3.7	3.7
2.7	2.7
1.4	1.4
0.9	0.9
0	0

Raspberry Pi and RTL-SDR over TCP-IP

for my own reference

1. Install a Raspi image on the SD card;

2. Set up the Raspi OS "as usual";

3. sudo apt-get update

    sudo apt-get upgrade

4. sudo bash

    apt-get update

    apt-get install cmake -y

    apt-get install libusb-1.0-0.dev -y

    git clone git://git.osmocom.org/rtl-sdr.git

    cd rtl-sdr/

    mkdir build

    cd build/

    cmake ../ -DDETACH_KERNEL_DRIVER=ON -DINSTALL_UDEV_RULES=ON

    make

    make install

    ldconfig

Run it with

   rtl_tcp -a {IP Address}