Depends on your distance, if you're going 1 km vs. 2.5 to 4 km.... It is definitely a VERY narrow beam width. Particularly with 60cm antennas. I wouldn't do it on anything that sways.
On Wed, Aug 10, 2016 at 6:07 AM, Joe Novak <jno...@lrcomm.com> wrote: > How stable of a structure do you need for 70/80Ghz? Self standing rohn 45 > @ 55 ft too much? It's bracketed at 25ft. > > On Wed, Aug 10, 2016 at 7:02 AM, Kurt Fankhauser <lists.wavel...@gmail.com > > wrote: > >> What price range is a Huawei link in? >> >> On Wed, Aug 10, 2016 at 2:47 AM, Eric Kuhnke <eric.kuh...@gmail.com> >> wrote: >> >>> You cannot directly compare 11 to 80 GHz. Totally different market. I >>> can't do beyond 2.5 km at real five to six nines uptime with 80 GHz (even >>> with +18 Tx power radios). >>> >>> I can do 60 km with 11 if the link will tolerate some ACM. >>> >>> On Aug 9, 2016 9:31 PM, "John Blake" <jbl...@n1networks.com> wrote: >>> >>>> It's obviously pricier than the B11, but if you want true symmetrical >>>> and a ton of throughput, you could look at the Huawei RTN-380 radios. >>>> These will do 4Gbps (2Gbps symmetrical) at full licensing, or there are 1, >>>> 2, 3Gbps licensing options. They use 71-76 GHz and 81-86 GHz and so are >>>> super easy and cheap to get (lightly) licensed. These are very popular with >>>> carriers outside the US, but not so much in the US because of all the >>>> Huawei/Ciscolobby disputes, but that has largely been resolved and they >>>> have been getting traction here. Let me know if you want more info, we are >>>> Huawei VAR. >>>> >>>> John >>>> >>>> >>>> On Wed, Aug 3, 2016 at 9:54 PM, <mbl...@bamicrowave.com> wrote: >>>> >>>>> Gino, >>>>> >>>>> That seems to be the only configuration that meets the requirement. >>>>> The way I see it, in a traditional FDD system you would license an XPIC >>>>> pair of frequencies, say 11075 H/V at point A and 11565 H/V at point B. >>>>> Assuming an 820 running 256QAM you might get 500mbps per polarity per >>>>> direction, for a two-way aggregate of 2gpbs. You would have licensed >>>>> 160MHz at each end of the system, for a system efficiency of 2gbps/320MHz >>>>> = >>>>> 6 b/s/hz. >>>>> If you operate a B11 on the same pair of frequencies, you have to use >>>>> their FD mode which a typical PCN claims will deliver 736mbps. It would >>>>> seem that this can be viewed as a two-way aggregate rate, because the >>>>> radios still take turns transmitting as in a true TDMA system. So, the >>>>> system efficiency here is 736mbps/320MHz = 2.3 b/s/hz -- below the >>>>> requirement of 3 b/s/hz. >>>>> >>>>> If you switch the B11 to the normal TDMA mode you will need to >>>>> transmit on the same frequency from each end of the link. So, in addition >>>>> to licensing 11075 H and V transmitting from point A, you also need to >>>>> license 11075 H and V transmitting from point B, which adds another 160MHz >>>>> at each end. The PCNs show this configuration giving 1.47gbps (again >>>>> assumed to be an aggregate figure due to the TDMA mode). This is an >>>>> efficiency of 1.47gbps/640MHz = 2.3 b/s/hz again. However, because you >>>>> have licensed two frequency pairs, each site can also transmit and receive >>>>> on the unused 11565 H and V frequencies. If you do this then you get >>>>> 2*1.47gbps/640MHz = 4.6 b/s/hz. This seems to be the only valid >>>>> configuration, but does this take two radios at each end, or just one? >>>>> >>>>> Mike Black >>>>> >>>>> Black & Associates >>>>> >>>>> 727-773-9016 >>>>> >>>>> >>>>> ---------------------------- Original Message >>>>> ---------------------------- >>>>> Subject: Re: [AFMUG] B11 >>>>> From: "Gino Villarini" <ginovi...@gmail.com> >>>>> Date: Wed, August 3, 2016 3:38 pm >>>>> To: "Animal Farm" <af@afmug.com> >>>>> ------------------------------------------------------------ >>>>> -------------- >>>>> >>>>> >>>>> > but the radio tx in both channels in the both polarites in both ends >>>>> ... >>>>> > >>>>> > On Wed, Aug 3, 2016 at 1:31 PM, Eric Kuhnke <eric.kuh...@gmail.com> >>>>> wrote: >>>>> > >>>>> >> No, it is just as spectrally efficient as any 256QAM radio... One >>>>> 80 MHz >>>>> >> "low" channel in both polarities and one 80 MHz "high" channel in >>>>> both >>>>> >> polarities, as a typical FDD band plan such as you would use with a >>>>> >> configuration with 2 dishes, 2 orthomode transducers and 4 radio >>>>> heads >>>>> >> (each radio operating in a single polarity) in a 2+0 configuration. >>>>> >> >>>>> >> You're arriving at the figure of 320 MHz by counting everything >>>>> twice. >>>>> >> >>>>> >> On Wed, Aug 3, 2016 at 10:28 AM, <mbl...@bamicrowave.com> wrote: >>>>> >> >>>>> >>> We haven't had the pleasure of coordinating a B11 link yet, but >>>>> they >>>>> >>> certainly seem to be popular based upon the number of PCNs we are >>>>> >>> seeing. So, a dumb question hopefully based upon a simple >>>>> misunderstanding >>>>> >>> of the numbers: I don't see how this meets the FCC minimum >>>>> efficiency >>>>> >>> standards for wide channels at 11GHz: >>>>> >>> >>>>> >>> 80MHz channels x H and V = 160MHz, but with high/low pairing you >>>>> double >>>>> >>> this? to 320MHz occupied per end? So, to meet the 3 b/s/hz >>>>> requirement at >>>>> >>> 11GHz your symmetrical throughput would need to be >= 960mbps. >>>>> What am I >>>>> >>> missing? >>>>> >>> >>>>> >>> Mike Black >>>>> >>> >>>>> >>> Black & Associates >>>>> >>> >>>>> >>> 727-773-9016 >>>>> >>> >>>>> >>> >>>>> >>> ---------------------------- Original Message >>>>> ---------------------------- >>>>> >>> Subject: Re: [AFMUG] B11 >>>>> >>> >>>>> From: "Jaime Fink" <ja...@mimosa.co> >>>>> >>> Date: Tue, August 2, 2016 4:49 pm >>>>> >>> To: "SmarterBroadband" <li...@smarterbroadband.com> >>>>> >>> "af@afmug.com" <af@afmug.com> >>>>> >>> ------------------------------------------------------------ >>>>> -------------- >>>>> >>> >>>>> >>> > The PHY is 1733 Mbps aggregate, so depending on the chosen window >>>>> >>> sizes, the top real world TCP speeds we’ve seen are between >>>>> 1200-1300 Mbps >>>>> >>> aggregate (75/25 or 50/50 mode), or 600-650 Mbps symmetric (50/50). >>>>> >>> > >>>>> >>> > For 11 GHz this assumes high/low pairing of 80 MHz and both >>>>> >>> polarizations coordinated. >>>>> >>> > >>>>> >>> > Jaime Fink • Mimosa<http://www.mimosa.co> • CPO & Co-Founder >>>>> >>> > >>>>> >>> > >>>>> >>> > On August 2, 2016 at 1:34:31 PM, SmarterBroadband ( >>>>> >>> li...@smarterbroadband.com<mailto:li...@smarterbroadband.com>) >>>>> wrote: >>>>> >>> > Can the B11 do 1Gbps Symmetrical? >>>>> >>> > If not what is best Symmetrical? >>>>> >>> > Thanks >>>>> >>> > >>>>> >>> > >>>>> >>> > >>>>> >>> >>>>> >> >>>>> >> >>>>> > >>>>> >>>>> >>>> >> >
