I believe it's a bit closer to 67%. 



----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 




----- Original Message -----

From: "Mark Radabaugh" <[email protected]> 
To: "AnimalFarm Microwave Users Group" <[email protected]> 
Sent: Thursday, January 30, 2020 1:49:49 PM 
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: 

<blockquote>



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: 

<blockquote>


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: 

<blockquote>

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: 

<blockquote>

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> 


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