And where's the tow truck if you just take a spot? On Thursday, February 25, 2021, Steve Jones <[email protected]> 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 <[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 <mattlists@ >>> 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 >>> [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 >>> <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 >>> [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 >> >
-- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
