[Starlink] starlink at sea

[Dave Taht]

I happily got my own starlink terminal last week but haven't mounted
it on my boat properly yet.

On Thu, Jul 14, 2022 at 4:15 AM Mike Puchol via Starlink
<starlink at lists.bufferbloat.net> wrote:
>
> On the multiple terminals, I have verified that the duty cycle of a consumer terminal is 14%, thus, you could have 7 terminals on a single uplink channel with some guard time.

What happens with two terminals close together?

>I have seen 30 Mbps up, so you’d be able to push 210 Mbps in uplink, or a spectral efficiency of about 3.4 bps/Hz.

I'm not sure if these two sets of numbers line up. by a duty cycle do
you mean transmitting a burst every x ms, or x amount of energy or ?
My assumption has been that to get 30Mbps up, you were using all
channels available.

There are distinct steps in uplink bandwidth that I see in my data. I
am going to try to get the resolution below a ms after the ethernet
thingi arrives.

This assumption incidentally finally gives me a means with outboard
hardware to better apply a bufferbloat fix, being able to quickly
sense how many channels are in use could [1] feed forward into buffer
sizing in the router itself...

Are you using some sort of gnu radio for your work? There's a pretty
neat project doing 5g outboard too..

[1] but it would remain way easier for them to let me cross compile sch_cake!

>
> From the satellite side, maybe EPFD limits don’t apply over water bodies, and they can place multiple co-frequency beams onto a single cell, which would allow throughputs into multiple gigabits per second (if no other usage around of course).
>
> I’m working on simulating ship scenarios on my tracker, along with other features.
>
> Best,
>
> Mike
> On Jul 14, 2022, 09:00 +0200, David Lang via Starlink <starlink at lists.bufferbloat.net>, wrote:
>
> On Thu, 14 Jul 2022, Larry Press wrote:
>
> <$50k/month (for all their boats)
>
> Do they have ten ships?
>
>
> I know of 7 off the top of my head, the three drone ships, the multi-purpose
> recovery ships bob and doug, they got a couple more recently(named for females,
> don't remember the names reliably), all those recovery ships on the east coast,
> so they probably have one or two on the west coast, and I don't think that
> includes the dragon recovery craft.
>
> $150k/month with much better service
>
>
> Is that for uncapped service from a GEO? What speeds do they get for that? Do GEO folks like Hughes offer SLAs to business customers?
>
>
> that was for 25G of bandwidth from the post I saw mentioned, they didn't mention
> the speed (but they did show the difference in video quality from the barges
> between the old and new)
>
> David Lang
>
> Does SES offer marine connectivity?
>
> Russian oligarchs will be early customers.
>
> Larry Press
>
> ________________________________
> From: Starlink <starlink-bounces at lists.bufferbloat.net> on behalf of David Lang via Starlink <starlink at lists.bufferbloat.net>
> Sent: Wednesday, July 13, 2022 5:40 PM
> To: Gary E. Miller <gem at rellim.com>
> Cc: Dave Taht via Starlink <starlink at lists.bufferbloat.net>
> Subject: Re: [Starlink] starlink at sea
>
> it all depends on what you are comparing it to. This isn't designed for a 30 ft
> boat, but rather for commercial operations. SpaceX had talked about how this
> replaces the earlier satellite services they have had on their boats that were
> unreliable and cost >$150k/month with much better service listing for
> <$50k/month (for all their boats)
>
> This is designed to be an all-weather allways-on service, most boaters could
> just use a standard starlink RV setup and put it out when they need it (taking
> it down when the weather is poor)
>
> David Lang
>
> On Wed, 13 Jul 2022, Gary E. Miller via Starlink wrote:
>
> Date: Wed, 13 Jul 2022 17:36:02 -0700
> From: Gary E. Miller via Starlink <starlink at lists.bufferbloat.net>
> Reply-To: Gary E. Miller <gem at rellim.com>
> To: Dave Taht via Starlink <starlink at lists.bufferbloat.net>
> Subject: Re: [Starlink] starlink at sea
>
> Yo Dave!
>
> On Wed, 13 Jul 2022 17:20:43 -0700
> Dave Taht via Starlink <starlink at lists.bufferbloat.net> wrote:
>
> https://urldefense.com/v3/__https://www.royalcaribbeanblog.com/2022/06/28/i-tried-elon-musks-starlink-internet-royal-caribbean-cruise-ship__;!!P7nkOOY!rxlTbVxEkw-MFoqu8DRa85IzMzIO1zBngo2MWxU3hZC2uf--DSi39Jg1_QDzFZyl3ShxZFNhM0oEQFMaJMhpU32Mkw$
>
>
>
> Did you notice the eye popping cost?
>
> https://urldefense.com/v3/__https://www.starlink.com/maritime__;!!P7nkOOY!rxlTbVxEkw-MFoqu8DRa85IzMzIO1zBngo2MWxU3hZC2uf--DSi39Jg1_QDzFZyl3ShxZFNhM0oEQFMaJMgLmSbzsw$
>
> "High-speed, low-latency internet with up to 350 Mbps download while at
> sea. $5,000/mo with a one-time hardware cost of $10,000 for two high
> performance terminals."
>
> I know a bunch of yacthies that have been waiting for this, but are
> now
> disappointed.
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
> gem at rellim.com Tel:+1 541 382 8588
>
> Veritas liberabit vos. -- Quid est veritas?
> "If you can't measure it, you can't improve it." - Lord Kelvin
>
>
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-- 
FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
Dave Täht CEO, TekLibre, LLC