Review of ThinkNode M1 and M2 LoRa nodes, and getting started guide for Meshtastic off-grid messaging and GPS sharing ...

A set of efficient algorithms for processing code-division multiple-access spread spectrum signals has been developed. They make use of bit-wise parallelism to process 32 samples simultaneously. These ...

Cellular networks limit the functionality of GPS trackers dependent on them. This project addresses the need for a secure GPS tracking of high-security personnel by developing a system that operates ...

A real-time tracking system for Maduino with SOS and OK functionality. This project allows for GPS tracking and sends notifications via HTTP requests when SOS or OK buttons are pressed. This ...

A circularly polarized (CP) cavity-backed annular slot antenna for GPS receiver is designed to operate in both the L1 and L2 bands of the Global Positioning System (GPS). The measured impedance ...

We tested the best satellite phones and satellite communicators from companies like SpaceX, Garmin, and Inmarsat, which offer features like messaging, live tracking, and SOS capabilities.

We’ve all found a GPS Receiver in DayZ and walked right past it. Whether we know the map well or just don’t know how to use the GPS Receiver, most players don’t bother to pick this up. Today ...

The troubled ICBM program was supposed to fly for the first time in 2026, but now the Air Force says that the date is unknown.