News for hackers. Stuff that matters.

A comment on I tried to adjust the time on my alarm clock. Parent comment

Re:I tried to adjust the time on my alarm clock by Spivak on Monday November 04, 2019 @10:05PM (#21449230)
Doesn’t work super well when your clock needs an unobstructed view of the sky. How many clocks in your house have that?
[ Parent | on HN ]
Re:I tried to adjust the time on my alarm clock by shaftway on Tuesday November 05, 2019 @02:08AM (#21450331)
It's not like it needs a solid fix though. It just needs a single satellite signal to get through, which is way more reasonable.
[ Parent | on HN ]
Re:I tried to adjust the time on my alarm clock by Gibbon1 on Tuesday November 05, 2019 @02:22AM (#21450378)
I have a higher end GPS module. Building I'm in is corrugated steel sided with a metal roof. After being on for an hour the coordinates show... my desk. Far as I can tell.

GPS transmit power is 44db with a 13 db antenna gain. I think. And -140 db sensitivity (typical) So close to 200db of link margin. And the transmitter isn't in clutter either.

[ Parent | on HN ]