Collaborate Disseminate
There are some websites and apps promising (I have not tested their claims, just accidentially saw such a service on some website about phones and apps for them) to show phone location on a map given its IMEI.
How do such websites and apps… Continue reading How do "track a phone location by IMEI" websites and apps work
The notion of segmenting and quantizing the day into discrete segments of time is perhaps one of the most human things we do. Heralding back to a simpler era when …read more Continue reading Wooden Linear Clock Aided By GPS
A few weeks ago, China launched the final satellite in its BeiDou-3 satellite positioning system. Didn’t know that China had its own GPS? How about Europe’s Galileo, Russia’s GLONASS, or Japan’s QZSS? There’s a whole world of GPS-alikes out there. Let’s take a look.
The Global Positioning System (GPS) that …read more
Continue reading Not Just GPS: New Options For Global Positioning
The entire world has come to depend on satellite navigation systems in the forty or so years since the first Global Positioning System satellites took to orbit. Modern economies have been built on the presumption that people and assets can be located to within a meter or better anywhere on, …read more
Continue reading Inside the Mysterious Global Navigation Outage You Probably Didn’t Notice
BBC News reports that a new study accuses Russia of massive GPS spoofing (see also this linked blog article). I am surprised that this is so easy¹, in particular since GPS originates as a military system. Couldn’t such spoo… Continue reading How can GNSS spoofing be so easy? Don’t the satellites sign their messages?
Russia has been hijacking signals sent by Global Navigation Satellite Systems (GNSS) systems such as GPS, researchers claim. Continue reading Russia accused of massive GPS spoofing campaign
Forgive the click bait headline, but the latest work from [Marco Bartolucci] and [José A. del Peral-Rosado] is really great. They’re using multiple HackRFs, synchronized together, with hybrid positioning algorithms to derive more precise localization accuracy. (PDF)
Like all SDRs, the HackRF can be used to solve positioning problems using WIFi, Bluetooth, 3G, 4G, and GNSS. Multiple receivers can also be used, but this requires synchronization for time-based or frequency-based ranging. [Bartolucci] and [Peral-Rosado] present a novel solution for synchronizing these HackRFs using a few convenient ports available on the board, a bit of CPLD hacking, and a GNSS receiver …read more
Continue reading CPLD-Based Synchronization of Multiple Software Defined Radios
Since Pokemon Go blew up the world a couple of weeks ago we’ve been trying to catch ’em all. Not the Pokemon; we’ve been trying to collect all the hardware hacks, and in particular the most complete GPS spoofing hack. We are now ready to declare the first Grandmaster GPS spoofing hack for Pokemon Go. It broadcasts fake GPS signals to your phone allowing the player to “walk around” the real world using a gaming joystick.
Just about everything about this looks right to us. They’re transmitting radio signals and are doing the responsible thing by using an RF shield …read more
Continue reading We Declare The Grandmaster Of Pokemon Go GPS Cheats