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Kearnstd
Elf Wizard
Premium
join:2002-01-22
Mullica Hill, NJ
kudos:1
reply to Irish Shark

Re: [iPhone] -114 dBm RSSI - How can it even work?

silly question, How can db be negative? I had a stereo once that listed the volume as negative db too which made no sense to my mind the numbers should be positive. But the dial was basically full loud if it was 0db and pretty much muted at -99.
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[65 Arcanist]Filan(High Elf) Zone: Broadband Reports



Darkfairy
Aeolus, your daughter flies.
Premium
join:2003-03-17
Louisville, KY

Because you're modulating the attenuator on your pre-amplifier. At -99dB the signal was fully attenuated or 'restricted' if you will. At 0dB the pre-amp is no longer attenuated and is feeding your power amplifier the full signal. The final volume output is going to be based on the impedance load on your power amplifier and the sensitivity of your transducers or "speakers" if you will.
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Fairy Blessings,
Stefanie