On Mon, Feb 8, 2010 at 10:49 PM, fooler mail <[email protected]> wrote: > On Thu, Feb 4, 2010 at 12:31 PM, Junix Gaspar <[email protected]> wrote: >> >> I wonder whats the proximity for a jammer... > > depends on the wattage and the height of its jamming device... > > the higher the wattage .. the longer its range... but you dont need to > have a high wattage jamming device if you have a clear line of sight > to your target... thats why external antennas such as cellsites, > AM/FM/TV transmitter needs a higher structure...
signal diminishes with distance, think of "free space loss". so yes, distance is also a factor. the lower the MHZ, the more resilient it is to LOS. 2.4ghz can penetrate more obstacle than 5.4. that is why 900mhz systems are often dubbed as (non|near)-line-of-sight wireless. john > > fooler. > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > http://lists.linux.org.ph/mailman/listinfo/plug > Searchable Archives: http://archives.free.net.ph > _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph
