Oh, nice, I hadn't noticed that yet. I just saw it driving by on 88.
----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Nate Burke" <n...@blastcomm.com> To: af@af.afmug.com Sent: Friday, June 21, 2019 8:49:39 AM Subject: Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites Are All Phoning Home (and Fading Out) | Space Did you notice how all the dishes at the CME have custom Radomes with the datacenter logo stenciled on them. On 6/21/2019 8:47 AM, Ken Hohhof wrote: Or they could go to the Blast From The Past store and buy a copy of Gray’s Sports Almanac 1950-2000. Then time travel back to 1955. You’ll need a DeLorean. From: AF <af-boun...@af.afmug.com> On Behalf Of Mike Hammett Sent: Friday, June 21, 2019 7:29 AM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites Are All Phoning Home (and Fading Out) | Space A whole bunch of new microwave dishes on the brand new tower at CME as well. I'd say within the last 90 days, probably less than 60 days. That said, they like to send the same data over many paths. First to receive wins. The shortwave may be the most-preferred, falling back to microwave, then to fiber. I know of four shortwave sites at the CME side. There may be more. The last I knew, the shortwave links weren't working out that well, but maybe they've got the links working now. *shrugs* ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Matt Hoppes" < mattli...@rivervalleyinternet.net > To: "AnimalFarm Microwave Users Group" < af@af.afmug.com >, "Eric Kuhnke" < eric.kuh...@gmail.com > Sent: Tuesday, June 18, 2019 9:18:46 AM Subject: Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites Are All Phoning Home (and Fading Out) | Space Are you sure about that? Because as of earlier this year the links are still being put in in Pennsylvania. On 6/18/19 4:16 AM, Eric Kuhnke wrote: > Most serious HFT moved to shortwave type links a while back, the > microwave path between the CME and New Jersey is obsolete... Think big > ass yagi-uda antennas, dipoles, much lower frequencies, very low data > rates. > > > > On Sat, Jun 15, 2019 at 4:02 PM Bill Prince < part15...@gmail.com > < mailto:part15...@gmail.com >> wrote: > > This is the best explanation I've seen (so far) of how the system is > expected to work. One thing I didn't think about was the low > latency. This video speculates that it will have lower latency than > trans-Atlantic fiber. Ergo, this may become the new darling of flash > traders. > > https://www.youtube.com/watch?v=giQ8xEWjnBs > > bp > <part15sbs{at}gmail{dot}com> > > On 6/3/2019 11:19 AM, ch...@wbmfg.com < mailto:ch...@wbmfg.com > wrote: >> I wonder how snow on the cpe antenna will affect things. >> *From:* Bill Prince >> *Sent:* Monday, June 3, 2019 12:16 PM >> *To:* af@af.afmug.com >> *Subject:* Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites Are >> All Phoning Home (and Fading Out) | Space >> >> That would be per satellite. So it doesn't really tell us what the >> system capacity is. Don't forget there will be ~ 600 satellites >> per ring, and (I think) 24 rings. >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 6/3/2019 10:18 AM, Adam Moffett wrote: >>> People always ask about system capacity, but it's simpler than >>> that. Their FCC filings show 2ghz of spectrum for the downlink >>> from satellite to user terminal. They have two polarities, not >>> unlike us. We could generously assume they'll get 10 bits/hz. >>> That's 20gbps in a given geographic area. It doesn't matter how >>> many satellites there are, or what the capacity of a given >>> satellite is. I don't know how big that geographic area will be >>> exactly. >>> >>> -Adam >>> >>> >>> On 6/2/2019 6:15 PM, Bill Prince wrote: >>>> >>>> There are whole bunches of risk factors. >>>> >>>> Assuming the satellite-mesh system works (and that is still an >>>> if; note that this first batch does not include the sat-sat >>>> laser link capability), I have not seen a real estimate of the >>>> system capacity. I would presume there would be separate earth >>>> stations for each orbital plane. There could even conceivably be >>>> multiple earth stations for each orbital plane, which would make >>>> the system capacity flexible. >>>> >>>> IDK if they're making money or not, but they are serving body >>>> blows to the competition. >>>> >>>> There was open speculation that the Falcon heavy was going into >>>> a limited demand situation, but now that it seems to be working >>>> (so far), that market opportunity may be shifting as well. >>>> >>>> bp >>>> <part15sbs{at}gmail{dot}com> >>>> >>>> On 6/2/2019 12:52 PM, Ken Hohhof wrote: >>>>> >>>>> You’d think that SpaceX is highly profitable and is using those >>>>> profits to expand into the satellite Internet business. But >>>>> actually there is debate whether SpaceX is profitable without >>>>> accounting tricks, and even if it is profitable, the margins >>>>> are very thin. Reportedly the geostationary launch business is >>>>> softening, and SpaceX is actually looking to Starlink for >>>>> profits. No doubt it helps if you can launch your own >>>>> satellites, maybe even having them ride along while you get >>>>> paid to launch stuff for paying customers. But this sounds >>>>> like a pretty risky venture, paid for with borrowed money. If >>>>> it wasn’t risky, it wouldn’t be Elon, right?____ >>>>> >>>>> ____ >>>>> >>>>> ____ >>>>> >>>>> *From:* AF mailto:af-boun...@af.afmug.com *On Behalf Of *Mike >>>>> Hammett >>>>> *Sent:* Sunday, June 2, 2019 12:04 PM >>>>> *To:* AnimalFarm Microwave Users Group mailto:af@af.afmug.com >>>>> *Subject:* Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites >>>>> Are All Phoning Home (and Fading Out) | Space____ >>>>> >>>>> ____ >>>>> >>>>> I would suspect they are going to have hundreds of earth >>>>> stations as opposed to one or two earth stations that legacy >>>>> platforms have. Up to the bird, maybe across one or two birds, >>>>> and back down to the fiber-fed earth stations. I've seen the >>>>> numbers, but I forgot the numbers. It's real bandwidth at each >>>>> one.____ >>>>> >>>>> >>>>> >>>>> ----- >>>>> Mike Hammett >>>>> Intelligent Computing Solutions < http://www.ics-il.com/ > >>>>> < https://www.facebook.com/ICSIL >< >>>>> https://plus.google.com/+IntelligentComputingSolutionsDeKalb >< >>>>> https://www.linkedin.com/company/intelligent-computing-solutions >< >>>>> https://twitter.com/ICSIL > >>>>> Midwest Internet Exchange < http://www.midwest-ix.com/ > >>>>> < https://www.facebook.com/mdwestix >< >>>>> https://www.linkedin.com/company/midwest-internet-exchange >< >>>>> https://twitter.com/mdwestix > >>>>> The Brothers WISP < http://www.thebrotherswisp.com/ > >>>>> < https://www.facebook.com/thebrotherswisp > >>>>> >>>>> >>>>> < https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg >____ >>>>> >>>>> ------------------------------------------------------------------------ >>>>> >>>>> *From: *"Tim Withrow via AF" < af@af.afmug.com > >>>>> *To: *af@af.afmug.com >>>>> *Cc: *"Tim Withrow" < timwith...@aol.com > >>>>> *Sent: *Saturday, June 1, 2019 4:43:01 PM >>>>> *Subject: *Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites >>>>> Are All Phoning Home (and Fading Out) | Space____ >>>>> >>>>> What kind of bandwidth capacity could each satellite have at >>>>> any given point? >>>>> What is the usable bandwidth of their system? Who makes a >>>>> radio that big to carry/transmit such capacity or is it an >>>>> aggregate of small radio's?____ >>>>> >>>>> ____ >>>>> >>>>> ------------------------------------------------------------------------ >>>>> >>>>> On Saturday, June 1, 2019 Bill Prince < af@af.afmug.com > wrote:____ >>>>> >>>>> Naturally, we're all thinking about what effect this will have >>>>> in rural America, but I am also wondering if this would have >>>>> some effect on China's "great firewall"?____ >>>>> >>>>> ____ >>>>> >>>>> bp____ >>>>> <part15sbs{at}gmail{dot}com>____ >>>>> ____ >>>>> >>>>> On 6/1/2019 1:47 PM, Ken Hohhof wrote:____ >>>>> >>>>> I think one factor advocacy groups and govt critters need to >>>>> keep in mind is that instead of robust competition, what could >>>>> occur is “disruptive” pricing, having the effect of >>>>> discouraging or bankrupting the competition. And now some new >>>>> entrant is the only game in town. And if it turns out to be >>>>> unreliable, or not to have enough capacity, or their speeds >>>>> are actually best effort, or their satellites start dropping >>>>> out of the sky, or whatever, people can’t switch back to their >>>>> old provider. Like being dissatisfied with online stores and >>>>> assuming you can always switch back to the old brick and mortar >>>>> store, from Uber and Lyft back to taxis and limos. Sorry, they >>>>> don’t exist anymore.____ >>>>> >>>>> ____ >>>>> >>>>> This is unlikely to happen in big cities, I doubt Comcast will >>>>> go bankrupt because of Starlink. But to just assume there will >>>>> be lots of choices out in the middle of nowhere driving the >>>>> price down without any of them turning off the lights, seems a >>>>> little naïve.____ >>>>> >>>>> ____ >>>>> >>>>> And to assume big megacorps like SpaceX, Amazon, Googe, >>>>> Facebook, etc. would never price below cost to be “disruptive” >>>>> also seems naïve.____ >>>>> >>>>> ____ >>>>> >>>>> ____ >>>>> >>>>> *From:*AF mailto:af-boun...@af.afmug.com *On Behalf Of *Bill Prince >>>>> *Sent:* Saturday, June 1, 2019 3:20 PM >>>>> *To:* af@af.afmug.com >>>>> *Subject:* Re: [AFMUG] SpaceX Says Its 60 Starlink Satellites >>>>> Are All Phoning Home (and Fading Out) | Space____ >>>>> >>>>> ____ >>>>> >>>>> Sure. But after the clouds, geostationary still needs to go >>>>> another 23,000 miles. LEO only has to go a few hundred.____ >>>>> >>>>> ____ >>>>> >>>>> bp____ >>>>> <part15sbs{at}gmail{dot}com>____ >>>>> ____ >>>>> >>>>> On 6/1/2019 10:47 AM, Mathew Howard wrote:____ >>>>> >>>>> Clouds are generally a lot lower than a couple hundred >>>>> miles... ____ >>>>> >>>>> ____ >>>>> >>>>> On Sat, Jun 1, 2019, 10:58 AM Bill Prince >>>>> < part15...@gmail.com > wrote:____ >>>>> >>>>> Maybe at geostationary distances, but these are only a >>>>> few hundred miles up. >>>>> >>>>> bp >>>>> <part15sbs{at}gmail{dot}com> >>>>> >>>>> On 6/1/2019 8:56 AM, Matt Hoppes wrote: >>>>> > Don't those bands have significant attenuation issues >>>>> with like... >>>>> > clouds? >>>>> > >>>>> > On 6/1/19 10:55 AM, Bill Prince wrote: >>>>> >> According to Wikipedia, they will be on Ku, Ka, and >>>>> V bands. >>>>> >> >>>>> >> >>>>> https://en.wikipedia.org/wiki/Starlink_(satellite_constellation) >>>>> >> >>>>> >> bp >>>>> >> <part15sbs{at}gmail{dot}com> >>>>> >> >>>>> >> On 6/1/2019 7:46 AM, Jaime Solorza wrote: >>>>> >>> Wonder what frequencies they will use? >>>>> >>> >>>>> >>> >>>>> https://www.space.com/spacex-starlink-satellites-phone-home-dimming.html >>>>> >>>>> >>> >>>>> >>> >>>>> >> >>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com____ >>>>> >>>>> ____ >>>>> >>>>> >>>>> >>>>> ____ >>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com____ >>>>> >>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com____ >>>>> >>>>> ____ >>>>> >>>>> >>>> >>> >>> >> ------------------------------------------------------------------------ >> -- >> AF mailing list >> AF@af.afmug.com < mailto:AF@af.afmug.com > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > AF@af.afmug.com < mailto:AF@af.afmug.com > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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