On Wed, Jul 21, 2010 at 11:21 AM, James Cameron <[email protected]> wrote: > On Tue, Jul 20, 2010 at 11:02:47PM +1200, Tom Parker wrote: >> The 400mW Ubiquiti device seems a good choice for a smaller number of >> laptops over a wider area, but I'm no expert on these things. How many >> walls can the TL-WR741ND penetrate? > > Impossible to predict. It depends on the materials used in the walls, > the thickness relative to the wavelength, the humidity, and the > structure holding the wall. The floor and ceiling construction also > has a significant impact on signal propagation; they are in the Fresnel > zone. > >> Is a higher transmit power only >> really relevant if you're talking to an equally powerful partner? > > As a general rule yes, but there are a few exceptions. > > 400mW isn't that much greater than 200mW; radio power doubling does not > double the range. >
I've had more success with wifi by placing the antenna in the roof space. Generally walls go only as far as the ceiling, and ceilings are thinner than walls. _______________________________________________ Server-devel mailing list [email protected] http://lists.laptop.org/listinfo/server-devel
