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The radio frequencies and they respective power are regulated by official sources. In the USA, you will need to go to the FCC web site to get precise numbers for the radio power output. In order to search the FCC OET Equipment Authorization database, you will need the FCC ID of the device you want to lookup. All devices that use radio frequency spectrum ...


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I was hoping to figure out how to do this with the pmset utility (man page). I feel like it's possible, but I couldn't see anything obvious (to me) looking through the options. Anyway, here's another app that will do what you want: https://code.google.com/p/macosx-nosleep-extension/


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The power adapter is required for closed display mode on any Apple portable machine, without it you can't use closed display mode. Reference: http://support.apple.com/kb/ht3131 There is however a third party solution, called Caffine. Which when enabled, forces the mac to stay on until the battery dies, it won't ever sleep. ...


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I often use the smaller Airport cable to power the Mac power adapter without having a ground and you can safely do the opposite as long as you get a firm connection and support the AirPort hardware if the plug extends lower than the bottom of the device.



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