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Ocean Guardian is the manufacturer of Shark Shield shark repellent devices. The Ocean Guardian electronic devices create an electromagnetic field to deter shark attacks and are used by surfers , scuba divers , snorkelers , spearfishers , ocean kayak fishers , swimming areas off boats and for ocean fishing.
The connector family was created by the Quick Lock Formula Alliance, which consists of Huber+Suhner, Radiall, Rosenberger Hochfrequenztechnik, and Amphenol. QMA [1] and QN [2] connectors are the quick lock version of SMA and N connectors. This design can save much handling time because it allows quick mating and demating without tools.
Disconnect is a partly open source [1] browser extension and mobile app designed to stop non-consensual third party trackers, [2] and providing private web search and private web browsing. [3] On mobile, it is available for Android and iPhone. It was developed by Brian Kennish and Casey Oppenheim.
A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when ...
The RF node with three antennas was at the platform and another antenna near the stairs on the far side. A distributed antenna system ( DAS ) is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides wireless service within a geographic area or structure.
The theory of the 'digital antenna arrays' (DAA) started to emerge as a theory of multichannel estimation. Its origins go back into methods developed in the 1920s that were used to determine direction of the arrival of radio signals by a set of two antennas based on the phase difference or amplitudes of their output voltages.
The antenna was invented by Shintaro Uda of Tohoku Imperial University, Japan, [5] in 1926, with a lesser role played by Hidetsugu Yagi. [6] [7] However, the name Yagi has become more familiar, while the name of Uda, who applied the idea in practice or established the conception through experiment, is often omitted.
For hoses and piping, a quick connect fitting, also called a push fitting, is a coupling used to provide a fast, make-or-break connection of gas or liquid transfer lines. Operated by hand, quick connect fittings replace threaded or flanged connections, which require wrenches. When equipped with self-sealing valves, quick connect fittings will ...