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Track-while-scan (TWS) is a mode of radar operation in which the radar allocates part of its power to tracking a target or targets (up to forty with modern radar) while part of its power is allocated to scanning. It is similar to but functions differently in comparison to its counterparts range-while-search (RWS), long range search (LRS), air ...
Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Project 25 ( P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1] P25 radios are a direct replacement for analog UHF (typically ...
M17 is a digital radio modulation mode developed by Wojciech Kaczmarski (amateur radio call sign SP5WWP) et al. M17 is primarily designed for voice communications on the VHF amateur radio bands, and above. The project received a grant from the Amateur Radio Digital Communications in 2021 and 2022.
SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Transponder in a private aircraft squawking 2000. Secondary surveillance radar (SSR) is a radar system used in air traffic control (ATC), that unlike primary radar systems that measure the bearing and distance of targets using the detected reflections of radio signals, relies on targets equipped with a ...
Integrated Public Alert & Warning System Open Platform for Emergency Networks (IPAWS-OPEN) is an IP based network that has integrated the different emergency alert systems of the United States. Its purpose is to connect alert originators to a server which then aggregates and disseminates alerts to the proper systems. IPAWS-OPEN uses CAP.
Damaging hacks expose the weak underbelly of America’s health care system. A pair of recent ransomware attacks crippled computer systems at two major American health care firms, disrupting ...
A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users (a talkgroup) with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time ...
A half-century ago when George Lucas decided to make “Star Wars,” a core visual effects team was handed a sizable challenge: Figure out a believable way to transport audiences to a galaxy far ...
Nett Warrior is based on an “end user device,” essentially an Android or iPhone -like smartphone tied to the Rifleman handheld radio, to link into command-and-control networks and use applications to call in fire support, plan and coordinate operations, and track friendly forces. The iteration used during the exercise performed poorly, with ...