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 <[email protected]> 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 <[email protected]> > 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 <[email protected]> > 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:[email protected]] *On Behalf Of *Robert >> *Sent:* Thursday, February 25, 2021 4:31 PM >> *To:* [email protected] >> *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 <[email protected]> >> 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:[email protected]] *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 <[email protected]> >> 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 <[email protected]> >> 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 < >> [email protected]> 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 >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> >> >> -- >> >> Carl Peterson >> >> *PORT NETWORKS* >> >> 401 E Pratt St, Ste 2553 >> >> Baltimore, MD 21202 >> >> (410) 637-3707 >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > <image001.gif><image002.jpg><image002.jpg>-- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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