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

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

   In moments when 911 is dialed, the first 8 to 10 minutes can be crucial to someone in distress. Debuting at the 2025 CES, Glomensio’s Firefly Gen 2 is a compact and smart “Light-Up House ...

5. Lock-in amplifier - Wikipedia

   en.wikipedia.org/wiki/Lock-in_amplifier

   A lock in amplifier uses a multiplier and a low pass filter to compare a reference signal against a noisy signal. A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the dynamic reserve of the instrument, signals up to a million times smaller than noise ...

6. Parametric oscillator - Wikipedia

   en.wikipedia.org/wiki/Parametric_oscillator

   Parametric amplifiers are used in applications requiring extremely low noise. A parametric oscillator is a driven harmonic oscillator in which the oscillations are driven by varying some parameters of the system at some frequencies, typically different from the natural frequency of the oscillator.

7. The best wireless headphones for seniors in 2025 - AOL

   www.aol.com/lifestyle/best-wireless-headphones...

   Active noise-cancelling: Yes | Battery life: Up to 30 hours | Features: Speak to chat, touch controls, wear detection If you’re looking for a superior audio experience, you're sure to love Sony ...

8. Fully differential amplifier - Wikipedia

   en.wikipedia.org/wiki/Fully_differential_amplifier

   A fully differential amplifier (FDA) is a DC-coupled high-gain electronic voltage amplifier with differential inputs and differential outputs. In its ordinary usage, the output of the FDA is controlled by two feedback paths which, because of the amplifier's high gain, almost completely determine the output voltage for any given input.

9. List of Bose home audio products - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_home_audio...

   The equaliser, connected between pre-amplifier output and power amplifier input, effectively flattens the speaker frequency response. [26] Each speaker has nine identical 4-inch drivers per channel — one on the front for direct sound, and eight on the rear designed to produce reflected sound.