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  2. RF modulator - Wikipedia

    en.wikipedia.org/wiki/RF_modulator

    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.

  3. Radio transmitter design - Wikipedia

    en.wikipedia.org/wiki/Radio_transmitter_design

    The tank circuit (LC), connected to the collector via a capacitor, contains a pair of varicap diodes. As the voltage applied to the varicaps is changed, the phase shift of the output will change. Phase modulation is mathematically equivalent to direct Frequency modulation with a 6 dB/octave high-pass filter applied to the modulating signal ...

  4. Frequency mixer - Wikipedia

    en.wikipedia.org/wiki/Frequency_mixer

    Frequency mixer symbol. In electronics, a mixer, or frequency mixer, is an electrical circuit that creates new frequencies from two signals applied to it.In its most common application, two signals are applied to a mixer, and it produces new signals at the sum and difference of the original frequencies.

  5. Chopper (electronics) - Wikipedia

    en.wikipedia.org/wiki/Chopper_(electronics)

    Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors.

  6. Wavelength selective switching - Wikipedia

    en.wikipedia.org/wiki/Wavelength_Selective_Switching

    It is likely that in future two WSS could use the same optical module utilizing different wavelength processing regions of a single matrix switch such as LCoS, [6] [7] provided that the issues associated with device isolation are able to be appropriately addressed. Channel selectivity ensures only wavelengths required to be dropped locally (up ...

  7. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    AOL Mail welcomes Verizon customers to our safe and delightful email experience!

  8. Dad Allegedly ‘Stole Money' from His Spouse and Kids to ...

    www.aol.com/dad-allegedly-stole-money-spouse...

    A New Jersey family is suing DraftKings after a father of two gambled away more than $1 million of his family’s money across four years. The man, known by his username Mdallo1990, allegedly lost ...

  9. The 20 best Thanksgiving Black Friday deals you can shop ...

    www.aol.com/lifestyle/the-20-thanksgiving-black...

    This Jennifer Aniston-fave serum stick is the ideal delivery system for softening fine lines, prepping skin for makeup and targeting dry patches (I've tried it — it actually blurred my wrinkles).