sudo apt update
sudo apt install git cmake pkg-config libusb-1.0-0-dev sox

Let's Clone The Software:

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

cd rtl-sdr

Make The Build Dir:

mkdir build
cd build

Let's Make And Install The Software:

cmake ../ -DINSTALL_UDEV_RULES=ON
make
sudo make install

Run The Following Commands:

sudo cp ../rtl-sdr.rules /etc/udev/rules.d/
sudo ldconfig

Blacklist The Following:

sudo nano /etc/modprobe.d/blacklist-rtl.conf

Copy and paste the following 3 lines

blacklist dvb_usb_rtl28xxu
blacklist rtl2832
blacklist rtl2830

Save and exit
Then do a sudo reboot "Make Sure You Have The RTL Dongle Plugged Into The Pi.

EX:

rtl_fm -M wbfm -f 92.0M | play -r 32k -t raw -e s -b 16 -c 1 -V1 -

rtl_fm -f 92.0M -M fm -s 170k -A fast -r 32k -l 0 -E deemp | play -r 32k ...

rtl_fm -M fm -f 154.42M -f 154.75M -f 154.89M -s 12k -g 50 -l 70 | play -r 12k -t raw -e s -b 16 -c 1 -V1 -

rtl_fm -M am -f 118M:137M:25k -s 12k -g 50 -l 280 | play -r 12k -t raw -e s -b 16 -c 1 -V1 -