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  2. List of software-defined radios - Wikipedia

    en.wikipedia.org/wiki/List_of_software-defined...

    16 16 Yes Four dual channel, 16 bit, 370 MSPS ADCs; Two quad channel, 16 bit, 2500 MSPS DACs; 4/4 2x 10Gbit/s SFP+, Ethernet Yes Yes Yes Cross Country Wireless SDR receiver v. 3 [34] Pre-built 472 – 479 kHz, 7.0–7.3 MHz/10.10–10.15 MHz, and 14.00–14.35 MHz ext No External ADC required (I/Q output) 1/1 Crystal controlled two channels Yes Yes

  3. Radio receiver design - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver_design

    A crystal set receiver consisting of an antenna, a variable inductor, a cat's whisker, and a filter capacitor. A crystal receiver is very simple and can be easy to make or even improvise, for example, the foxhole radio. However, the crystal radio needs a strong RF signal and a long antenna to operate.

  4. Radio receiver - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver

    Another benefit of DSP is that the properties of the receiver; channel frequency, bandwidth, gain, etc. can be dynamically changed by software to react to changes in the environment; these systems are known as software-defined radios or cognitive radio. Many of the functions performed by analog electronics can be performed by software instead ...

  5. AV receiver - Wikipedia

    en.wikipedia.org/wiki/AV_receiver

    An audio/video receiver (AVR) or a stereo receiver is a consumer electronics component used in a home theater or hi-fi system. Its purpose is to receive audio and video signals from a number of sources, and to process them and provide power amplifiers to drive loudspeakers , and/or route the video to displays such as a television , monitor or ...

  6. Low-noise block downconverter - Wikipedia

    en.wikipedia.org/wiki/Low-noise_block_downconverter

    In the case of UK BSkyB receivers, the LNB remains powered while in standby so that the receiver can receive firmware updates and Electronic Programme Guide updates. In the United States, the LNB connected to a Dish Network receiver remains powered so the system can receive software and firmware updates and guide information over the air at night.

  7. Universal asynchronous receiver-transmitter - Wikipedia

    en.wikipedia.org/wiki/Universal_asynchronous...

    At the end of each data frame, the receiver stops briefly to wait for the next start bit. It is this difference that keeps the transmitter and receiver synchronized. BCLK = Base Clock. A UART frame consists of 5 elements: Idle (logic high (1)) Start bit (logic low (0)): the start bit signals to the receiver that a new character is coming.

  8. Fiber-optic communication - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_communication

    The technique is known as orbital angular momentum (OAM). The nanophotonic device uses ultra-thin sheets to measure a fraction of a millimeter of twisted light. Nano-electronic device is embedded within a connector smaller than the size of a USB connector and may be fitted at the end of an optical fiber cable. [76]

  9. Modem - Wikipedia

    en.wikipedia.org/wiki/Modem

    It employed the most powerful coding techniques available at the time, including channel encoding and shape encoding. From the mere four bits per symbol ( 9.6 kbit/s ), the new standards used the functional equivalent of 6 to 10 bits per symbol, plus increasing baud rates from 2,400 to 3,429, to create 14.4, 28.8, and 33.6 kbit/s modems.