I think (but i'm not certain) that since there is such a large swath of spectrum (10Ghz) they use 1Ghz channel sizes but only modulate at BPSK and QPSK. Where as lower frequencies (like 5Ghz) you can use a 80Mhz channel at 256QAM and get similar throughput. By only using QPSK there is a higher probability that your signal will reach the other end of the link, by using 1Ghz channels you get higher throughput but with a lower modulation rate.
80Ghz is a really small wavelength so i would think your distance will always be limited to 1 maybe 2 miles. -sean On Fri, Apr 5, 2013 at 1:27 PM, Sam Tetherow <[email protected]> wrote: > Wow! > > (partially because of the price drop, but mostly because I haven't seen > Tom post in forever, welcome back) > > I haven't really studied up on 80GHz stuff, but it is my understanding > that you don't have to worry about rain fade, and you have 10GHz of > spectrum to use which should ease co-location issues. > > > On 04/04/2013 09:06 PM, Tom DeReggi wrote: > > Its been ages since I've posted, but....this advertisement surely caught > my eye. > > Siklu Eband radios (licenced light) for sub $3500 per link. FINALLY !!! > We can afford to start using this 70G spectrum. > > Some may say not that exciting, considering 24Ghz products have already > hit that price mark and functionality, and can go 3x the distance. > But, I say its exciting, thats one ambitious price drop from where other > 80Ghz products have been priced at ($30k), historically 2-4x over priced > compared to 60Ghz equivellent product, just because of the uniqueness to > license 80Ghz and slight increase in range. Its nice to see someone finally > do it, after I've been screaming for it for the last 10 years. > > Anyway... anyone use the product yet and have feedback? > > > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > > ----- Original Message ----- > *From:* ~NGL~ <[email protected]> > *To:* WISPA General List <[email protected]> > *Sent:* Thursday, April 04, 2013 7:55 PM > *Subject:* [WISPA] Bullet M5HP > > What kind of throughput can I expect with a pair of Bullet M5's PTP with > 24 DBI Grids and pure LOS at 2-5 miles? > NGL > If you can read this Thank A Teacher. > And if it's in English Thank A Soldier! > > ------------------------------ > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless > > > > _______________________________________________ > Wireless mailing > [email protected]http://lists.wispa.org/mailman/listinfo/wireless > > > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless > >
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