Math Analysis of Viasat

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*Caution* Assumptions and flawed reasoning are used in this post.

I ran out of unlimited 150GB data so I'm bored.

Currently Viasat has about 576,000 subscribers and a throughput of 440gbps.

The companies total revenue is $439.7 million per year.
33% is from subscribers.
17% is from commercial networks
50% is from government

For the sake of argument, lets pretend that 100% of their bandwidth capacity is solely for consumers and they are able to connect to BOTH Viasat 1 & 2 .

440gbps = 440,000mpbs, 440,000mbps / 576,000 subscribers = .7369mbps per subscriber (all simultaneously downloading).
What is the max number of people (simultaneously downloading at 25mbps) the satellites can handle while still delivering me my advertised 25mbps?
440,000mbps / 25mbps per subscriber = 17,600 subscribers. That's 3% of all subscribers

Lets figure out how much Viasat makes every gigabyte.
440gbps * 60 seconds * 60 minutes * 24 hours * 30 days = 1140480000 gigabits can be transferred in a (30 day) month if the satellites are always transmitting at max capacity.
1140480000 gigabits / 8 bits per byte = 142,560,000 gigabyte or 142.56 petabytes!
$439.7 Million / 12 months per year = $36.64 Million a month
$36,640,000 / 142,560,000 gigabyte=  $0.257 per gigabyte.
How much do I pay per GB? $100 / 150GB = $0.667 per gigabyte (not bad at all!).

If all 576,000 customers had 150GB unlimited plans and downloaded their max data they would only use 86,400,000 gigabytes of the satellites' total monthly capacity.

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Posted 2 years ago

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Photo of VeteranSatUser


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I stopped at assumptions and flawed reasoning.

Way too much math for me to tackle.

You must have been bored!
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Stephen Rice, Champion

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In this galaxy, there's a mathematical probability of three million Earth-type planets. And in all of the universe, three million million galaxies like this. And in all of that... and perhaps more, only one of each of us.  Don't destroy the one named Viasat.
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Stephen. I am a little disappointed you didn't share the Al Bundy tale here.
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Andy Schack

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It was MY understanding that there would be NO math on this forum. 

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Old Labs (VS1-329-L12FZ)

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Clearly there isn't since nothing adds up in this community in general.
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Old Labs (VS1-329-L12FZ)

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I'm bored too... and haven't run out.

The math is reasonably solid (only in this community are addition, multiplication and division considered too much to handle). The assumptions (and pretending) are where you're going wrong.

Residential subscribers can't connect to both Viasat-1 and Viasat-2 (unless they have two separate accounts). It's likely that commercial and government accounts have dedicated bandwidth. Only 33% of the revenue is derived from residential. Much of the revenue comes from sources other than actual satellite service - equipment, managed wifi, etc. It's been hinted/suggested only 50% of Viasat-2 capacity is being reserved for residential as opposed to 95% on Viasat-1.

.7369mbps isn't too far off from the "speeds" people are complaining about during peak usage periods and at least you've grasped the concept of capacity vs. speed ;)

Next up... Applied Queuing Theory in Network Management. Prequisite courses: Applied Linear Alegebra, Probability Theory, Intro to Operations Research.  
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Let's ask the expert...

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Old Labs (VS1-329-L12FZ)

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He's over at DSL Reports...
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Stephen Rice, Champion

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Beakman is getting old.  Its good to see he doesn't have any gray hair though.
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Chaim Isaac Lipschitz

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You say "How much do I pay per GB? $100 / 150GB = $0.667 per gigabyte (not bad at all!)."
How do you square that with Liberty's plan that cost $50/mo for 12 Gb data.
That equals $4.17 per gigabyte, not your $0.667 per gigabyte.