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  2. Television antenna - Wikipedia

    en.wikipedia.org/wiki/Television_antenna

    Outdoor antennas provide up to a 15 dB gain in signal strength and 15-20 dB greater rejection of ghost signals in analog TV. [6] Combined with a signal increase of 14 dB due to height and 11 dB due to lack of attenuating building walls, an outdoor antenna can result in a signal strength increase of up to 40 dB at the TV receiver.

  3. Effective radiated power - Wikipedia

    en.wikipedia.org/wiki/Effective_radiated_power

    It is equal to the power input to the transmitter's antenna multiplied by the isotropic antenna gain = The ERP and EIRP are also often expressed in decibels (dB). The input power in decibels is usually calculated with comparison to a reference level of one watt (W): P in ( d B W ) = 10 log ⁡ P in {\displaystyle P_{\text{in}}\mathrm {(dBW ...

  4. UHF television broadcasting - Wikipedia

    en.wikipedia.org/wiki/UHF_television_broadcasting

    UHF is a radio frequency band for over-the-air transmission of television signals. Learn about the history, advantages, disadvantages and challenges of UHF broadcasting compared to VHF.

  5. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

    www.aol.com/entertainment/20-off-raycon-earbuds...

    Raycon has an amazing selection of best selling earbuds, headphones and more which rival the most popular brands — but best of all, they’re significantly less expensive.

  6. Noise temperature (antenna) - Wikipedia

    en.wikipedia.org/wiki/Noise_temperature_(antenna)

    Learn how to measure and calculate the noise temperature of an antenna, which is a parameter that describes how much noise an antenna produces in a given environment. Find out the sources of antenna noise, such as cosmic background radiation, earth heating, and electrical devices.

  7. Are Noise-Canceling Headphones Harmful to Your Ears? - AOL

    www.aol.com/noise-canceling-headphones-harmful...

    Key Takeaways: As the FDA does not regulate headphone volume, it’s up to us to self-regulate our listening volume. Noise canceling headphones can help keep your volume within a safe range, so ...

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