How to Calibrate RTL-SDR using Kalibrate-RTL

Published by poplab on


This tool help understand what frequencies and channels are used by BTS’s around us. Install dependencies for Kalibrate tool.

sudo apt-get install libtool autoconf automake libfftw3-dev librtlsdr0 librtlsdr-dev libusb-1.0-0 libusb-1.0-0-dev

Clone the kalibrate git hub repository to our machine

git clone

Prepare our system to install Kalibrate

cd kalibrate-rtl

We are using RaspberryPI is better to optimize the script to run on it.

git checkout arm_memory

Install Kalibrate-rtl into our system

sudo make install

Detect GSM BTS Frequencies

Capture the data on the main ARFCN.

kal -s GSM900
How to Calibrate RTL-SDR using Kalibrate-RTL