On 05/13/2010 11:59 AM, David E. Smith wrote: > On Thu, May 13, 2010 at 10:25, Bret Clark<bcl...@spectraaccess.com> wrote: > > >> I must have missed it, but what did the telcos do with the 3.65 range? >> >> > I dunno whether this was the telcos' doing, or not, but the power rules in > 3.65 are silly and counter-intuitive. > > Basically, your EIRP is limited to... the width of your channel. Need a > small, long-distance link? Too bad, a 5MHz channel limits you to 5 watts > EIRP (about 37dBm). Using better antennas doesn't help; there's no "tradeoff > power for antenna gain" rule like 2.4 PTP. A 20MHz-wide channel lets you go > up to 20 watts EIRP (43 dBm). The rules encourage using more spectrum than > you really need, and make it very difficult to set up longer-distance links > - even if you use all 25MHz available to you, there's a hard cap of 25 W > EIRP (or 44.something dBm). > > David Smith > MVN.net > > > Oh yeah..that I knew...was worried some new just happen, thanks for the info.
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