Mobile communications, the most vital toys for the automatons of the modern world

Every “smart”-phone or other device with mobile communications capability (e.g. 3G or LTE) runs two operating systems. Aside from the operating system that the end-users see (Android, iOS, PalmOS), it also runs a small operating system that manages everything related to radio. Since this functionality is highly timing-dependent, a real-time operating system is required. ThisContinue reading “Mobile communications, the most vital toys for the automatons of the modern world”

Del Simulatore GPS, il vecchio sistema LORAN chiamato con un altro nome

Dell’espressione poco sensata “comunicazioni radar-satellitari”
 I RADAR della difesa aerea militare hanno una potenza superiore a quelli utilizzati per altri scopi, quindi, per il ragionamento che si fa qui, basta considerare questi. Un disco rotante di quelli usati per la cosiddetta “difesa aerea” ha una gittata massima di 300 miglia. Li può superare, dicono, maContinue reading “Del Simulatore GPS, il vecchio sistema LORAN chiamato con un altro nome”

Of Planefinder sites, ground stations and radar ‘dead zones’

Planefinder provide flight information like GPS location + Direction + web lookup of flights • Planefinder.net, Flightradar24.com, Radarvirtuel.com • Aggregates data from all over the world • User provided ground stations and data • Generates near real time (-10 min delay) Google Map of air traffic • Supports queries for Airlines, cities, tail numbers, flightContinue reading “Of Planefinder sites, ground stations and radar ‘dead zones’”