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Yes. That is why we have ACK time settings in 802.11 radios. Greg Ihnen wrote: At near the speed of light is the distance of a 20~40 miles really a factor?Greg On Aug 31, 2010, at 5:32 PM, MDK wrote:As the distances go up, the longer it takes for the packet to be transmitted from one point to another, and the round trip time grows, which reduces the throughput. My experience is, that it would be all but impossible to do two parallel links in 5 ghz with UBNT stuff, as the antennas are not sufficiently isolated from each other, and despite being on channels that don't overlap, they still seem to have issues from strong nearby signals. And that would be even more true, using 40 mhz channels, as the spectrum it's "listening" to is so much wider. Perhaps my early hardware hasn't the selectivity of later, but I haven't heard there's significant differences. It was really my first thought, but so far I don't see it as viable unless somehow I can physically isolate the two links so they don't hear the closer transmitter. ++++++++++++++++++++++++++++++ Neofast, Inc, Making internet easy 541-969-8200 509-386-4589 ++++++++++++++++++++++++++++++ -------------------------------------------------- From: "Faisal Imtiaz" <fai...@snappydsl.net> Sent: Tuesday, August 31, 2010 8:49 AM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] Suggestions for high bandwidth @ 25 miles. |
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