Bruce,

I appreciate your suggestions very much, but the size and layout of my
place make them extremely impractical. I live in an old building
(which, for Miami Beach, means circa 1930), and at some point in its
history two apartments got joined into one.

On Mar 3, 4:28 pm, Bruce Johnson <[email protected]> wrote:
> On Mar 3, 2010, at 1:44 PM, Ashgrove wrote:
>
> > On Mar 3, 3:16 pm, Bruce Johnson <[email protected]> wrote:
> >> I don't suppose there's any way to put it in the middle of the
> >> apartment?
>
> > I'm afraid not. I have DSL, and the only phone jacks are in the living
> > room and the bedroom.
>
> You can use a long ethernet cable between the DSL box and your WiFi  
> router, move it at least a little closer to the center of the place,  
> don't forget, radio signals obey the inverse square law, which means  
> your signal strength increases a lot the closer you get to the source.
>
> And example: (using numbers plucked from thin air)
>
> A 10' or 15' difference on a 40' run will make a large difference. At  
> 40' the signal is 1/1600th the level it is at the source; at 30' it's  
> only 1/900th. That's almost a 2x gain in signal strength for 10' of  
> distance.
>
> (note this is completely theoretical, with attenuation solely due to  
> distance, not taking into account the effects of walls, pipes, etc,  
> etc. It this distance lets you get a better line of sight to the  
> router you may see even better gains.
>
> Line of Sight is NOT a restriction of WiFi, but if you can see the  
> router from where you're trying to use it, you can be reasonably  
> assured that you're going to get the best signal for your distance.  
> Things like metal corners in drywall and metal studs (as used in newer  
> construction), or worse metal-mesh-backed stucco, will have a major  
> effect on signal reception.)
>
> I don't know what the limitations are on connecting DSL modems to the  
> phone jacks are, either, perhaps you could connect it with a longer  
> cable, too, but I know Cat5 ethernet is supposed to be rated for 100  
> meters.
>
> If your apartment is longer than that, just hire some slaves to carry  
> your email back and forth, Mr. Trump ;-)
>
> --
> Bruce Johnson
> University of Arizona
> College of Pharmacy
> Information Technology Group
>
> Institutions do not have opinions, merely customs

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