maybe they wrap your bird with tin foil like a space boot On Thu, Feb 25, 2021 at 6:28 PM Jason McKemie < j.mcke...@veloxinetbroadband.com> wrote:
> And where's the tow truck if you just take a spot? > > On Thursday, February 25, 2021, Steve Jones <thatoneguyst...@gmail.com> > wrote: > >> So if a nation is not recognized by the UN then they have free parking? >> >> On Thu, Feb 25, 2021, 5:52 PM Mark Radabaugh <m...@amplex.net> wrote: >> >>> ITU controls the slots: >>> https://alexsli.com/thespacebar/2017/7/the-international-telecommunications-union-orbital-satellite-parking-enforcement >>> >>> Mark >>> >>> On Feb 25, 2021, at 6:02 PM, Steve Jones <thatoneguyst...@gmail.com> >>> wrote: >>> >>> Who controls the parking spots? And what if you just decide to put one >>> there? I'd like to have Elon dough where I could just get in a parking spot >>> fight in space for spite. I wonder if alec Baldwin is the enforcer, he just >>> punches you in the face if you take a spot. >>> >>> On Thu, Feb 25, 2021, 4:30 PM Brian Webster <i...@wirelessmapping.com> >>> wrote: >>> >>>> Matt, >>>> >>>> Looking at your post on Facebook, I think you have >>>> misunderstood the Geostationary definition. There is only one orbit height >>>> that rotates around the earth at the same speed as the Earth rotates and it >>>> is located at the equator. That is called the Clarke Belt and it is 22,236 >>>> miles above the earth. Your question about a Leo and it being Geostationary >>>> are contradictions in terms. In the Clarke belt since it’s just one line of >>>> “parking spots” around the earth (at the equator only), one does not just >>>> set up their own. They are very coveted spots in the belt and only the >>>> expensive birds reside there. At 22,236 miles above the earth, a Cambium >>>> radio or similar device won’t have enough power to reach back to a CPE. In >>>> addition to that and you will have high latency just like the current >>>> geostationary satellite systems do. That radio signal has to travel 44,472 >>>> miles, hence the latency people complain about. >>>> >>>> >>>> >>>> https://en.wikipedia.org/wiki/Geostationary_orbit >>>> >>>> >>>> >>>> >>>> >>>> Thank you, >>>> >>>> Brian Webster >>>> >>>> www.wirelessmapping.com >>>> >>>> >>>> >>>> *From:* AF [mailto:af-boun...@af.afmug.com] *On Behalf Of *Robert >>>> *Sent:* Thursday, February 25, 2021 4:31 PM >>>> *To:* af@af.afmug.com >>>> *Subject:* Re: [AFMUG] Your Own Satellite Internet >>>> >>>> >>>> >>>> Yes, Look up the various "xxxxStats" that have been tethered at the >>>> borders over the years with balloons for radar coverage of low flying >>>> aircraft and the NOTAMS that are posted for them. They have a very large ( >>>> relatively ) exclusion zone and you have to worry about said tethers >>>> falling and doing damage on the way down. >>>> >>>> On 2/25/21 11:39 AM, Jason McKemie wrote: >>>> >>>> Those tethers would be a nightmare for aviation. >>>> >>>> >>>> >>>> On Thu, Feb 25, 2021 at 1:31 PM Brian Webster <i...@wirelessmapping.com> >>>> wrote: >>>> >>>> One also has to calculate the window that your satellite is visible on >>>> the ground of your target service area based on the altitude you will have >>>> the bird orbiting. Many times any of the Amateur radio satellites only have >>>> a 10 or 15 minute window of visibility a few times a day. For 24/7 internet >>>> service you need to have many orbital object/satellites such that when one >>>> move out of view another is there for the handoff. The lower orbit you >>>> have, the smaller window you have. So a LEO small footprint coverage is >>>> still going to take a lot of satellites just to cover you small territory. >>>> How many all depends on the area and altitude. Since your satellite is not >>>> going to be in a stationary orbit, I am sure you need international >>>> cooperation to file for all the orbits you need to just cover your small >>>> footprint in the US because that orbit goes all the way around the earth >>>> and has effect on others who might need a similar orbit. A good portion of >>>> the time your satellite is flying through the sky for your local footprint, >>>> it’s not going to be doing much of anything because it’s not visible to any >>>> of your customers. Until we get some sort of tethered satellite solution >>>> that is tied to the ground and centrifugal force hold the satellite in >>>> place, these are the laws of physics one has to contend with. If someone >>>> can invest a very lightweight tethering string of some sort that when it is >>>> long enough the total weight of said string does not overcome the amount of >>>> centrifugal force achieved at your desired height to allow the >>>> radio/satellite to stay in place without needing to be an orbital object. >>>> If that is invested and it also allows for transmission of adequate power >>>> and data, that could be a real game changer. As far as I know 90,000 feet >>>> of something to be a good tether weighs more than the force that could keep >>>> the device flung out that far. >>>> >>>> >>>> >>>> [image: File:Iridium Coverage Animation.gif] >>>> >>>> >>>> >>>> Here is an animated version of this graphic >>>> https://commons.wikimedia.org/wiki/File:Iridium_Coverage_Animation.gif >>>> >>>> >>>> >>>> If you want to get an idea of satellite visibilities and the number of >>>> times per day you can view it, this program is a great satellite prediction >>>> and tracking program http://gpredict.oz9aec.net/ >>>> >>>> [image: Gpredict: Free, Real-Time Satellite Tracking and Orbit >>>> Prediction Software] >>>> >>>> >>>> >>>> Here is a short video that does a decent job of illustrating the >>>> complexity of orbital mechanics one has to consider. Earth rotation, orbit >>>> direction, power consideration if you want to be sun synchronous etc. >>>> >>>> https://www.youtube.com/watch?v=omv38sEBxk8&feature=emb_logo >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> Thank you, >>>> >>>> Brian Webster >>>> >>>> www.wirelessmapping.com >>>> >>>> >>>> >>>> *From:* AF [mailto:af-boun...@af.afmug.com] *On Behalf Of *Carl >>>> Peterson >>>> *Sent:* Thursday, February 25, 2021 1:43 PM >>>> *To:* AnimalFarm Microwave Users Group >>>> *Subject:* Re: [AFMUG] Your Own Satellite Internet >>>> >>>> >>>> >>>> As Adam points out, your satellite isn't just going to float there. It >>>> needs a lot of speed. That speed would have it moving "past" you really >>>> really fast until you got to about 26k miles up where it would remain still >>>> relative to you. If you wanted it to float at 90k' you would need a >>>> balloon or something like that but that's a loony idea. >>>> >>>> >>>> >>>> >>>> >>>> On Thu, Feb 25, 2021 at 12:34 PM Adam Moffett <dmmoff...@gmail.com> >>>> wrote: >>>> >>>> I know a guy I could ask. >>>> >>>> On 2/25/2021 1:20 PM, Steve Jones wrote: >>>> >>>> can you get hot pockets on jail commissaries? >>>> >>>> >>>> >>>> >>>> >>>> On Thu, Feb 25, 2021 at 12:08 PM Adam Moffett <dmmoff...@gmail.com> >>>> wrote: >>>> >>>> well....Aiming at thousand foot tower from close range customers we are >>>> definitely sometimes more than 3 degrees up. Put me in jail I guess. >>>> >>>> >>>> >>>> On 2/25/2021 1:02 PM, Matt Hopkins wrote: >>>> >>>> If I recall correctly it is illegal to aim a 5GHz radio > 3° above the >>>> horizon. >>>> >>>> >>>> >>>> On Thu, Feb 25, 2021 at 9:43 AM Matt Hoppes < >>>> mattli...@rivervalleyinternet.net> wrote: >>>> >>>> So here me out. I've been to low earth orbit (90,000 feet) with >>>> equipment I can get in my basement/hardware store. I've beamed >>>> signals >>>> back from 90,000 feet to a radio in my truck. >>>> >>>> I'm familiar with how AmSats work (although have not sent one up >>>> myself). >>>> >>>> What is preventing a WISP from putting together a solar powered GeoSync >>>> satellite that has a few Cambium Spots on it to fully cover your >>>> coverage area? >>>> >>>> Yes, you'd have capacity issues if you didn't plan it correctly, but is >>>> there technically any reason I can't run a 5GHz link to a satellite? >>>> Do you have to pay a "rental" fee to occupy a space in space to park >>>> your bird? >>>> >>>> Yes, I realize there would be latency, but if you keep the throughput >>>> there (something Hughes Doesn't Do), the experience wouldn't be half >>>> bad >>>> for most things.. >>>> >>>> -- >>>> 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 >>>> >>>> >>>> >>>> >>>> -- >>>> >>>> Carl Peterson >>>> >>>> *PORT NETWORKS* >>>> >>>> 401 E Pratt St, Ste 2553 >>>> <https://www.google.com/maps/search/401+E+Pratt+St,+Ste+2553+Baltimore,+MD+21202?entry=gmail&source=g> >>>> >>>> Baltimore, MD 21202 >>>> <https://www.google.com/maps/search/401+E+Pratt+St,+Ste+2553+Baltimore,+MD+21202?entry=gmail&source=g> >>>> >>>> (410) 637-3707 >>>> >>>> -- >>>> 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 >>>> >>> <image001.gif><image002.jpg><image002.jpg>-- >>> 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 >
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