On 9/29/06, David VanHorn wrote: > > > > > > A RadioShack $20 talky-walky pair is able to communicate perfect on > > LOS at 8.5Km (about 5 miles) with own antennas. > > > In a vaccuum, with a tail wind :) No, in Romania, when I've tested an 8.5Km LOS, WIMAX FDD link on 2.45GHz and 5.6GHz. We've used 433Mhz for antena alignment. I was deeply surprised talking with two 433Mhz talky walky models, a smallest size $20 and a bigger size $30 both from Radioshack. BTW, about antennas, on 5GHz we've been able to send a videoclip with 0dBm output power, using 18dBi gain antenna... and we do it just for fun. Using the powerfull 2.4Ghz DSP from the world. :) Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist