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  2. Low-noise amplifier - Wikipedia

    en.wikipedia.org/wiki/Low-noise_amplifier

    A low-noise amplifier (LNA) is an electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR). Any electronic amplifier will increase the power of both the signal and the noise present at its input, but the amplifier will also introduce some additional noise.

  3. Tower Mounted Amplifier - Wikipedia

    en.wikipedia.org/wiki/Tower_Mounted_Amplifier

    A Tower Mounted Amplifier (TMA), or Mast Head Amplifier (MHA), is a low-noise amplifier (LNA) mounted as close as practical to the antenna in mobile masts or base transceiver stations. A TMA reduces the base transceiver station noise figure (NF) and therefore improves its overall sensitivity ; in other words the mobile mast is able to receive ...

  4. List of LM-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_LM-series...

    Power op-amp with a maximal current output of 3 amperes [23] LM709 Yes General-purpose op-amp [24] LM741 LM709 General-purpose op-amp. [25] Widely used. LM747: Yes General-purpose dual op-amp. [26] LM748 General-purpose op-amp with external compensation [27] LM833 Dual high-speed audio operational amplifiers [28] LM837 Low-noise quadruple op ...

  5. The best tech for adults over 65 we spotted at CES this year

    www.aol.com/lifestyle/ces-2025-aging-in-place...

    We found the best technology for adults over 65 at CES this year. From AI aids to ‘aging in place’ smart home solutions, the annual tech show kept older users in mind.

  6. Low-noise block downconverter - Wikipedia

    en.wikipedia.org/wiki/Low-noise_block_downconverter

    A Universal LNB has a switchable local oscillator frequency of 9.75/10.60 GHz to provide two modes of operation: low band reception (10.70–11.70 GHz) and high band reception (11.70–12.75 GHz). The local oscillator frequency is switched in response to a 22 kHz signal superimposed on the supply voltage from the connected receiver.

  7. The 6 best cellphones for seniors in 2025 - AOL

    www.aol.com/lifestyle/best-cellphone-seniors...

    The A23 5G is Samsung's entry-level Galaxy phone, but it still offers plenty of great features that make it senior-friendly, including the “Easy Mode,” which simplifies the interface.

  8. Distributed amplifier - Wikipedia

    en.wikipedia.org/wiki/Distributed_Amplifier

    The design of the distributed amplifiers was first formulated by William S. Percival in 1936. [1] In that year Percival proposed a design by which the transconductances of individual vacuum tubes could be added linearly without lumping their element capacitances at the input and output, thus arriving at a circuit that achieved a gain-bandwidth product greater than that of an individual tube.

  9. Only $28 for these top-rated Sony noise-canceling ... - AOL

    www.aol.com/entertainment/amazon-just-took-45...

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