GPS-Spoofing

With the HackRF One, it is possible to transmit a fake GPS signal to deceive other devices by simulating a real GPS transmission. This technique can be used for testing or research purposes, allowing you to manipulate the location data received by nearby GPS-enabled devices.

To set this up, you will need the following components:

• HackRF One (a Chinese clone will also suffice)
• External TCXO (necessary for the high precision that GPS signals require)
• Antenna (ideally, a dedicated GPS antenna for better signal accuracy)
• GNU Radio and HackRF tools for signal transmission

Commands

sudo apt install gnuradio libhackrf0 hackrf libhackrf-dev

Check if you see 0x01 with (means TXCO is installed):

hackrf_debug --si5351c -n 0 -r

Download the GPS-SDR-SIM software

mkdir GPS_SDR_SIM

cd GPS_SDR_SIM

git clone https://github.com/osqzss/gps-sdr-sim.git

Compile it

make

Get the current satellite positions from NASA

# Create an account on https://urs.earthdata.nasa.gov
# Make a file called .netrc with the following content:

machine urs.earthdata.nasa.gov login actedlinux password Asdfghjkl007

Change the file permission with

sudo chmod 004 .netrc

Generate the signal file with the static position (coordinates) you want to send

./gps-sdr-sim -b 8 -e YOUR_BRDC_FILE_HERE -l 40.812800,-60.005900,100

Send the signal

sudo hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 0