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ASTEC UM 1286 UHF modulator, top cover taken off. An RF modulator (radio frequency modulator) is an electronic device used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver.
A variable-frequency drive (VFD) is a type of frequency changer used for speed control of AC motors such as used for pumps and fans. The speed of a synchronous or induction AC motor is dependent on the frequency of the AC power supply, so changing frequency allows the motor speed to be changed. This allows fan or pump output to be varied to ...
A number of extensions to the USB Specifications have progressively further increased the maximum allowable V_BUS voltage: starting with 6.0 V with USB BC 1.2, [42] to 21.5 V with USB PD 2.0 [43] and 50.9 V with USB PD 3.1, [43] while still maintaining backwards compatibility with USB 2.0 by requiring various forms of handshake before ...
Nintendo 64 controller. The Nintendo 64 controller (NUS-005) is an "m"-shaped controller with 10 buttons (A, B, C-Up, C-Down, C-Left, C-Right, L, R, Z, and Start), one analog stick in the center, a digital directional pad on the left side, and an extension port on the back for many of the system's accessories.
The 911 call came in at about 4 p.m. on Sept. 18, 2014, to Gilchrist County dispatchers in Florida. On the tape, the 911 operator could hear a man admitting to killing his adult daughter and his ...
A television station announced the sudden death of a beloved 28-year-old news anchor in Tucson, Arizona, as family and friends honor her life.
Wrapping up their own investigation on the January 6, 2021 US Capitol attack, House Republicans have concluded GOP former Rep. Liz Cheney should be prosecuted for probing what happened when then ...
A modulator is a device or circuit that performs modulation. A demodulator (sometimes detector ) is a circuit that performs demodulation , the inverse of modulation. A modem (from mod ulator– dem odulator), used in bidirectional communication, can perform both operations.