warning and radio information
1Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
2warning system — ▪ military technology Introduction in military science, any method used to detect the situation or intention of an enemy so that warning can be given. Because military tactics from time immemorial have stressed the value of surprise… …
3Radio communications during the September 11 attacks — This article reviews some of the details of radio communications at the September 11, 2001 World Trade Center attacks. [The purpose of revealing the operational details in this article is to allow operators of other communications networks and… …
4Radio masts and towers — Masts of the Rugby VLF transmitter in England …
5information theory — the mathematical theory concerned with the content, transmission, storage, and retrieval of information, usually in the form of messages or data, and esp. by means of computers. [1945 50] * * * ▪ mathematics Introduction a mathematical… …
6Pirate radio in Europe — Radio portal An introduction to the subject of pirate radio can be found under that heading. Contents 1 Belgium (from international waters) …
7Radio propagation beacon — A radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on HF, VHF, UHF, and microwave frequencies.… …
8Radio Block Centre — Das European Train Control System (kurz ETCS) ist eine Komponente eines einheitlichen europäischen Eisenbahnverkehrsleitsystems, das unter dem Buchstabenkürzel ERTMS entwickelt wurde. Die zweite technische Komponente dieser digitalen… …
9Radio Data System — Логотип RDS Radio Data System (англ. Radio Data System, RDS) многоцелевой стандарт, предназначенный для передачи информационных сообщений по каналам ЧМ радиовещания в диапазоне …
10NOAA Weather Radio All Hazards — Type Weather Radio/Civil Emergency Services Branding …
