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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 ...
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 radar transponder, that reply to each interrogation signal by transmitting encoded data such ...
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 ...
Air tankers and helicopters helped douse flames from the sky as nearly 200 firefighters on the ground battled a wildfire northeast of Phoenix on Friday that threatened scores of homes and forced ...
Yesterday, the small herd of elephants at the Cincinnati zoo got their first peek at their massive new enclosure, Elephant Trek, which will be open next fall. The five-acre exhibit will include ...
Mini Typhoon is a lightweight, remote-controlled weapon station based on the Typhoon. [3] It can be fitted with a 12.7 mm (.50) machine gun, a 7.62 mm machine gun, or a 40 mm grenade launcher, with a magazine of up to 230 rounds. [3] The system has an accuracy rating of 0.5 mrad, weighs between 140 and 170 kilograms (310 and 370 lb), depending ...
Researchers have found a link between semaglutide use and NAION, a rare condition that is the second-leading cause of optic nerve blindness. (Getty Images) (Jacob Wackerhausen via Getty Images)
The system consists of a transmitter and two different types of receivers, one to initiate blasting caps and one to initiate C4 directly. RAMS was designed to serve as a more portable and convenient alternative to conventional remote activation systems like the model XM-122, which was considered too big, heavy, and fragile for efficient use.