I believe they are using lasers derived from shark eyes. Those work better in space.
From: Mark Radabaugh Sent: Thursday, January 30, 2020 12:49 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] OT: Now there are ~~ 180 Speed of light in glass varies but it’s about 80% of vacuum. Density matters! Or is it matter makes density? If your dense does it matter? If you're not matter does that give you energy? Mark On Jan 30, 2020, at 2:45 PM, Bill Prince <[email protected]> wrote: I think he means bandwidth as opposed to "speed". Surely latency would be almost indistinguishable. However, there could be a lot of difference in the bandwidth. Regardless of the sat-to-sat speed, the downlink/uplink will still be the gating factor. bp <part15sbs{at}gmail{dot}com> On 1/30/2020 11:40 AM, [email protected] wrote: In a vacuum it should be the same. From: [email protected] Sent: Thursday, January 30, 2020 12:36 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] OT: Now there are ~~ 180 What's the difference in speed between the laser and RF links? On Thu, Jan 30, 2020 at 10:40 AM Bill Prince <[email protected]> wrote: Not what I read. The early sats (the ones other than the first 60) do not have the laser communications between them, but they do have an RF link between them. They are functional. bp <part15sbs{at}gmail{dot}com> On 1/29/2020 7:56 PM, Ryan Ray wrote: The sats that are up there now also are not equipped to communicate with each other. There is no inner satellite communication. Everything has to come down to ground stations right now. On Wed, Jan 29, 2020 at 12:08 PM Bill Prince <[email protected]> wrote: SpaceX got another 60 Starlink sats into orbit this morning. That brings the functional constellation to 180 sats. The first batch of 60 don't count since they are not equipped to communicate with each other. Various reports say either 300 or 400 sats are required to get a basic minimal functioning system. At the rate they're going, this may mean they will have achieved their goal in another couple of months (they want to do 2 launches per month). https://www.space.com/spacex-starlink-3-satellites-launch-rocket-landing-success.html -- bp <part15sbs{at}gmail{dot}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 ---------------------------------------------------------------------------- -- 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
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