text_combined: gary lawrence murphy garymcanadacom j james rogers writes j example able model rf propagation three j dimensions metro area deploying wireless networks j every single tree building detail similar j see even tiny dead spots due physical blockage j signal attenuation hmmm thought words practical uses whatsoever biz guys office really think wisps really going shell money find house two cant reach experience suggests wont care b even sign errant house give runaround blaming deadspot unsupported vendor equipment thus yes cool expensive toy apparent function gary lawrence murphy teledynamics communications inc business advantage community software httpwwwteledyncom computers useless give answerspablo picasso 08 sep 2002 181657 0400 whoa