On Friday (05/10/2002 at 10:29AM -0500), Carl Wilhelm Soderstrom wrote: > > Yup -- it assumes the built in rubber duckies, which generally have a gain > > of 0 dBi to 2 dBi. You can get antennas that do 24 dBi for < $100. > > Remember, dBi isn't a linear scale -- every 3dBi of gain effectivly > > doubles your power (iirc). > > just as a matter of idle curiosity, what's the highest-gain 802.11b antenna > anyone has ever seen? there are plenty of hams messing around with moon-bounce on S-band-- using 3, 6 or even 10m dishes. Of course these aren't particularly practical for terrestrial work I suppose. I'd say you're most likely to see a practical, useable, directional antenna in the 20 to 25 dB range. > any guesses as to the gain on the Arecibo radio telescope? ;) 74 dB at S-band. It also has a 1 megawatt S-band transmitter :-) cje -- Chris Elmquist mailto:chrise at pobox.com http://www.pobox.com/~chrise