On Sun, February 22, 2009 8:15 pm, Carl Lowenstein wrote: > On Sat, Feb 21, 2009 at 7:14 PM, Gus Wirth <[email protected]> wrote: >> Lan Barnes wrote: >>> I suspect the reflector from a large flashlight would do the job as >>> well. >> >> Probably not unless the reflector came a really old flashlight and is >> made entirely of metal. Modern flashlights have reflectors made of >> plastic with a very thin aluminum coating. The coating isn't thick >> enough to be a good reflector of RF. > > Flashlight reflectors are really not big enough. Remember, the > wavelength is about 4.5 inches. >
Would that be the radius or diameter? I have a flashlight reflector about that diameter. Even if it's plastic, it could be lined with foil. And it had a hole for the antenna and is guarenteed to be a parabola. > Go see freeantennas.com and look at the linear parabolic antennas made > to match the linear antenna that sticks out of your wireless access > point. I have been using their cardboard and aluminum foil model for > a few years. Yes, they have planar parabolas as opposed to circular. Question: does surface-crinkled foil mess it up? My guess is yes, it scatters it. -- Lan Barnes SCM Analyst Linux Guy Tcl/Tk Enthusiast Biodiesel Brewer -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-newbie
