North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: wanted: wireless magic tricks
On Thu, Aug 16, 2001 at 01:28:46PM -0400, Greg Maxwell wrote: > I just ran some quick numbers, and a unlicenced 20mile link like that > would be possible, but I wouldn't sell it.: > > 1.75mw -> 36dBi antenna -> freespace -> 36dBi antenna -> reciever + mis > losses, has an EIRP of about 3.9 watts (legal). > > You'd have about 15db of link margin, and that's much too little for a > reliable link IMO. That's why I suggested two 10 mile links. :-) There are a large number of people in the 10-14 mile range with reliable links, and very few people pushing further. That said, some guy in NZ got around 35 miles as I recall using off the shelf parts. It no doubt exceeded FCC regs though, but that's not an issue for him. -- Leo Bicknell - [email protected] Systems Engineer - Internetworking Engineer - CCIE 3440 Read TMBG List - [email protected], www.tmbg.org
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