Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article

To: LouieFisk

I did a search for SpaceX satellite connections and found this:

The two benchmark tests, conducted using Ookla’s Speedtest.net service, show Starlink achieving a 102 to 103Mbps download rate, 40 to 42Mbps upload rate, and a latency of 18 to 19ms. (Note: Ookla is owned by Ziff Davis, PCMag.com’s parent company.)

(For comparison, the average latency for fixed broadband in the US is 25ms, while the rate on mobile networks is at 48ms, according to Speedtest.net.)

https://www.pcmag.com/news/spacexs-satellite-internet-service-latency-comes-in-under-20-milliseconds
___________________________________________

Most people focus on bandwidth, but latency is king! During the 1980’s I would point out that the highest bandwidth for long haul was a Mack Truck filled with magnetic tapes. It provided the best bandwidth, but the latency wasn’t particularly good. :) Latency comes to the foreground for any protocols used for two-way communication.

The I.E.E.E. (Institute of Electrical and Electronic Engineers) had an article in the 1980’s where they reported that high tech firms in San Francisco were using rolls of microfiche attached to the feet of carrier pigeons for large data transfers within the city and surrounding areas. This was at a time when modems were connected to phone lines for the highest data transfer rates.


8 posted on 10/22/2020 4:41:54 PM PDT by the_Watchman
[ Post Reply | Private Reply | To 2 | View Replies ]


To: the_Watchman

“During the 1980’s I would point out that the highest bandwidth for long haul was a Mack Truck filled with magnetic tapes. It provided the best bandwidth, but the latency wasn’t particularly good. “

There is a technical definition for bandwidth and the now bastardized definition. Yours is neither.


15 posted on 10/22/2020 5:25:25 PM PDT by TexasGator (Z1z)
[ Post Reply | Private Reply | To 8 | View Replies ]

To: the_Watchman

“The I.E.E.E. (Institute of Electrical and Electronic Engineers) had an article in the 1980’s where they reported that high tech firms in San Francisco were using rolls of microfiche attached to the feet of carrier pigeons for large data transfers within the city and surrounding areas. This was at a time when modems were connected to phone lines for the highest data transfer rates.”

How do you transfer computer data using. microfiche?


21 posted on 10/22/2020 10:09:18 PM PDT by TexasGator (Z1z)
[ Post Reply | Private Reply | To 8 | View Replies ]

Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson