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  2. Standing wave ratio - Wikipedia

    en.wikipedia.org/wiki/Standing_wave_ratio

    Voltage standing wave ratio (VSWR) (pronounced "vizwar" [1] [2]) is the ratio of maximum to minimum voltage on a transmission line . For example, a VSWR of 1.2 means a peak voltage 1.2 times the minimum voltage along that line, if the line is at least one half wavelength long.

  3. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

  4. Comparison of Samsung Galaxy S smartphones - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Samsung...

    The following is a comparative list of smartphones belonging to smartphones in the Samsung Galaxy S series line of devices, using the Android operating system. This table is primarily intended to show the differences between the model families of phones in the Galaxy S series. The list only covers unlocked and international devices.

  5. Comparison of smartphones - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_smartphones

    Asus ROG Phone 5 Pro 512 GB 16 GB Asus ROG Phone 5 Ultimate 18 GB Asus ROG Phone 5s Qualcomm Snapdragon 888+ Octa-core, (1 × 2.99 GHz + 3 × 2.42 GHz + 4 × 1.80 GHz Kryo 680) 128/256 GB 8/12/16 GB 172.8 mm × 77.3 mm × 9.9 mm Asus ROG Phone 5s Pro 512 GB 18 GB Xiaomi Black Shark 4 Qualcomm Snapdragon 870

  6. Signal strength in telecommunications - Wikipedia

    en.wikipedia.org/wiki/Signal_strength_in...

    For very low-power systems, such as mobile phones, signal strength is usually expressed in dB-microvolts per metre (dBμV/m) or in decibels above a reference level of one milliwatt . In broadcasting terminology, 1 mV/m is 1000 μV/m or 60 dBμ (often written dBu).

  7. Mobile phone signal - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_signal

    A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower , any obstructions such as buildings or trees, etc. this signal strength will vary.

  8. Your old cell phone may be worth more than you think

    www.aol.com/news/2016-05-24-your-old-cell-phone...

    If old cell phones aren't the only vintage items you have stored away in your home, take a look at what some of the most valuable VHS tapes are going for. Related Articles AOL

  9. Scattering parameters - Wikipedia

    en.wikipedia.org/wiki/Scattering_parameters

    The voltage standing wave ratio (VSWR) at a port, represented by the lower case 's', is a similar measure of port match to return loss but is a scalar linear quantity, the ratio of the standing wave maximum voltage to the standing wave minimum voltage.

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