Gpssim.bin — !!top!!

hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 40

gpssim.bin – found in the wild. Likely from a GPS spoofing/simulation framework. Running strings revealed ephemeris data and a UTC timestamp. Be careful replaying this near live receivers. Anyone recognize the exact generator? gpssim.bin

At the factory, DJI drones are placed in a Faraday cage and fed a gpssim.bin file via a wired connection to a signal generator. This simulates flying over a test course (e.g., a figure-eight pattern in Shenzhen) without actual satellites or movement. hackrf_transfer -t gpssim