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A balun / ˈ b æ l ʌ n / (from "balanced to unbalanced", originally, but now derived from "balancing unit") [1] is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance arrangement of either line. [2] A balun can take many forms and may include devices that also transform impedances ...
Used for older TV antenna installations in the US and various other countries worldwide. Current use generally limited to baluns to adapt 300 Ω twin-lead to/from 75 Ω F connector. Replaced by F connector in North America and Belling-Lee Connector in other countries outside North America. UHF connector (e.g. PL-259/SO-239)
As UTP cable bandwidth has improved to match the baseband of television signals, UTP is now used in some video applications, primarily in security cameras. [6] As UTP is a balanced transmission line, a balun is needed to connect to unbalanced equipment, for example any using BNC connectors and designed for coaxial cable.
balun A device that connects a balanced transmission line to an unbalanced line. band-pass filter A filter that lets through signals within a range of frequencies. band-stop filter A filter that blocks signals with a particular range of frequencies. bandwidth The range of frequencies over which a system generates or uses significant signal power.
ESP32 is a series of low-cost, low-power system-on-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, an Xtensa LX7 dual-core microprocessor, or a single-core RISC-V microprocessor and includes built-in antenna switches, RF balun, power amplifier, low-noise ...
TLR cameras, SLR cameras, folding cameras, CCD and SLR camera lenses, large-format cameras Sigma: Japan: Compact digital cameras and SD-series DSLRs Sony: Japan: Cyber-shot compact digital cameras, α DSLRs, and Sony NEX MILCs Tevion: Germany: Compact digital cameras and trail cameras Thomson: France: Waterproof digital camera Traveler: Germany ...
Likewise with CATV, although many broadcast TV installations and CATV headends use 300 Ω folded dipole antennas to receive off-the-air signals, 75 Ω coax makes a convenient 4:1 balun transformer for these as well as possessing low attenuation. The arithmetic mean between 30 Ω and 77 Ω is 53.5 Ω; the geometric mean is 48 Ω. The selection ...
Balun – Band-pass filter – Band-stop filter – Bandwidth (signal processing) – Bang–bang control – Barlow's wheel – Bartlett's bisection theorem – Base-load power plant – Battery (electricity) – Battery eliminator – Bayer filter – Beam tetrode – Beat frequency – Beckman Instruments – Bell Telephone Laboratories ...
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