Don’t want to go outside to play Pokémon Go? Some guys came up with this clever hack: generate your own GPS signal.

Simulating GPS data with poor software was yesterday! We are generating the real GNSS data with our R&S SMBV and feeding the signal directly into the mobile device. […] The setup is a little proof of concept by simulating GPS signals with a HIL – Hardware in the Loop – interface, which can also be used for a flight simulator or similar applications. A R&S-SMBV100A Vector signal generator serves as a source to simulate real life GNSS RF signals.