Droid signal "bars" don't match -dBm strength?

Discussion in 'Android Tech Support' started by mobilecal, Apr 2, 2010.

  1. mobilecal
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    mobilecal New Member

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    I know bars aren't the greatest indicator of signal strength but I realized the Droid "bars" don't really match the signal strength of actual the actual -dBm reading.

    Over the period of a few minutes:

    -89dBm (3 bars)
    -89dBm (2 bars)
    -89dBM (0 bars)
    -91dBM (2 bars)
    -87dBm (0 bars)

    This just doesn't make sense. At one point I had 0 bars at -89dBm yet showed 2 bars at -91dBm which is suppose to be weaker. Maybe I should just ignore the signal altogether.
    NOTE: I had WiFi off.
  2. jjf
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    jjf New Member

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    I'm only making a wild guess here, but perhaps the "bar" measurement is taking a combination of RF signal strength and measured bit error rate. Do we know the bars strictly measure RF strength, or are they an indication of signal quality?
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