nanog mailing list archives
Re: 5G roadblock: labor
From: Sabri Berisha <sabri () cluecentral net>
Date: Mon, 6 Jan 2020 14:42:50 -0800 (PST)
----- On Jan 6, 2020, at 1:44 PM, Michael Thomas mike () mtcc com wrote: Hi,
On 1/6/20 1:21 PM, Sabri Berisha wrote:Low Earth Orbit satellites do not have a fixed position and move in a low orbit.
But at what cost to latency? Sounds like gamers would probably hate it.
Oneweb claims 32ms average. https://arstechnica.com/information-technology/2019/07/onewebs-low-earth-satellites-hit-400mbps-and-32ms-latency-in-new-test/ This is one of the main advantages of LEO over geostationary. LEO is around 1,200 miles above the earth, GEO is around 22,000 miles above the earth. That's a big difference in latency. Remember that radio travels at the speed of light. That translates to ~118ms for GEO, and 6.4ms for LEO (one way trip). That means that the round-trip latency without any transponder latency equals 12.8ms for a low earth orbit signal, compared to 236ms for a GEO signal. Big difference. This is a good read perhaps: https://www.iridium.com/blog/2018/09/11/satellites-101-leo-vs-geo/ I no longer work for a satellite ISP, for the record. Thanks, Sabri
Current thread:
- Re: 5G roadblock: labor, (continued)
- Re: 5G roadblock: labor Tom Ivar Helbekkmo via NANOG (Jan 04)
- Re: 5G roadblock: labor Mark Tinka (Jan 04)
- Re: 5G roadblock: labor Mark Tinka (Jan 03)
- Re: 5G roadblock: labor Sabri Berisha (Jan 04)
- Re: 5G roadblock: labor Mark Tinka (Jan 05)
- Re: 5G roadblock: labor Sabri Berisha (Jan 05)
- Re: 5G roadblock: labor Mark Tinka (Jan 05)
- Re: 5G roadblock: labor Sabri Berisha (Jan 06)
- Re: 5G roadblock: labor Michael Thomas (Jan 06)
- Re: 5G roadblock: labor Mark Tinka (Jan 06)
- Re: 5G roadblock: labor Sabri Berisha (Jan 06)
- Re: 5G roadblock: labor Michael Thomas (Jan 06)
- Re: 5G roadblock: labor Andrey Kostin (Jan 06)
- Re: 5G roadblock: labor Mark Tinka (Jan 06)
- Re: 5G roadblock: labor Sabri Berisha (Jan 06)
- Re: 5G roadblock: labor Mark Tinka (Jan 06)
- Re: 5G roadblock: labor Michael Thomas (Jan 05)
- Re: 5G roadblock: labor Mark Tinka (Jan 05)
- Re: 5G roadblock: labor Michael Thomas (Jan 06)
- Re: 5G roadblock: labor Mark Tinka (Jan 06)
- Re: 5G roadblock: labor Shane Ronan (Jan 06)