[Starlink] Re: Testing 4K live video over Starlink with added +10% packet loss

[Sauli Kiviranta <smksauli@gmail.com>]

You can see the bottom left corner that its pushing about 12Mbps, even when
the Fast.com can only "see" mere 2Mbps (they already cheat a bit), that's
what the RTSP source was configured to push from the Axis camera (
https://www.axis.com/products/axis-v5938 ).

In this test the end to end latency was 2.5sec (P99), pretty nice for a
100ms RTT on such a lossy scenario.

Best regards,
Suali

On Wed, Sep 10, 2025 at 12:13 AM J Pan <Pan@uvic.ca> wrote:

> that's really cool. most tcp cannot handle 10% packet loss. what's
> video datarate/latency?
> --
> J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA,
> Web.UVic.CA/~pan
>
> On Tue, Sep 9, 2025 at 2:05 PM Sauli Kiviranta <smksauli@gmail.com> wrote:
> >
> > This is all just TCP, that was kind of thew idea. Not yet with FEC
> though, working on that, just rusty good old TCP.
> >
> > Best regards,
> > Sauli
> >
> > On Wed, Sep 10, 2025 at 12:02 AM J Pan <Pan@uvic.ca> wrote:
> >>
> >> fast.com measures tcp performance and you used udp to get the best out
> >> of a lossy link? spacex uses multiple starlink dishes on a launch
> >> vehicle and pick whatever made through too
> >> --
> >> J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA,
> Web.UVic.CA/~pan
> >>
> >> On Tue, Sep 9, 2025 at 1:50 PM Sauli Kiviranta via Starlink
> >> <starlink@lists.bufferbloat.net> wrote:
> >> >
> >> > We start to get somewhere that is what I would say cool level. Our
> target
> >> > is Ulrich Spiedel storm conditions measured over the Gabriella
> cyclone with
> >> > Starlink.
> >> >
> >> > https://x.com/sksauli/status/1964349734304301268
> >> >
> >> > We have also now test running just accelerating all data, so we can
> get
> >> > same effects for better utilization rate of the link.
> >> >
> >> > Anyone know what kind of bit error rates or packet loss levels are in
> the
> >> > streams for SpaceX launches? Usually they look very very stable.
> >> >
> >> > Anyone want to test this? Send me email sauli.kiviranta@xrtc.io
> >> >
> >> > Best regards,
> >> > Sauli
> >> > _______________________________________________
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>