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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.
Monoblock LNBs can be connected by adding a DiSEqC switch with compatibility of cascading, or they can be connected directly to different satellite tuners, e.g., twin tuners with two separate inputs. However, placing several separate single-feed LNBs can lead to better results and more optimal signal levels.
2-way DiSEqC switch 4-way DiSEqC switch with attached coaxial cables.. DiSEqC (/ ˈ d aɪ s ɛ k, d aɪ ˈ s ɛ k s i /; [citation needed] short for Digital Satellite Equipment Control) is a special communication protocol for use between a satellite receiver and a device such as a multi-dish switch or a small [1] dish antenna rotor.
These terminals are manufactured by many companies, commonly using the terms "quick disconnect", "quick connect", "tab" terminals, "spade" terminals [1] or blade connectors; without qualifiers, the first two could be mistaken for plumbing connections. [2]
Astra type LNBFs incorporate two probes in the waveguide, at right angles to one another so that, once the LNB has been skewed in its mount to match the local polarization angle, one probe collects horizontal signals and the other vertical, and an electronic switch (controlled by the voltage of the LNB's power supply from the receiver: 13 V for ...
A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. [2] In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism (such as RF switches, varactors, mechanical actuators or tunable materials) that enable the intentional redistribution of the RF currents over the ...
A push-in compression coupling and tee.. Push-to-pull, push-to-connect, push-in, push-fit, or instant fittings are a type of easily removed compression fitting or quick connect fitting that allows an air (or water) line to be attached, nominally without the use of tools (a tool is still usually required for cutting tubing to length and removal).
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline. Antenna tuners are particularly important for use with ...