Hein (fub) wrote,
Hein
fub

  • Mood:

Today is National GPS Recalibration Day!

If you have a GPS receiver, you should allow it to 'recalibrate' itself once in a while. The sattelites drift ever so slightly in their orbits. Ground stations measure this drift with lasers, and the corrections are compressed in an 'almanak': which sattelite is where at which time.
The almanak is broadcasted along with the GPS signal -- so it is important that you allow your GPS to download the new almanak and other corrective data once in a while. See the details here.

For us geocachers, a precise fix is very important! We don't want to dig through a whole forest to find the cache. Which is why we will be participating in the National GPS Recalibration Day.
We are going to N51 54.216 E4 09.866, because on 12:15 precisely, there will be many sattelites directly overhead. We'll try to get a fix, and download the almanak in parallel, for a speedy recalibration.

See you GPS receiver owners there!
Tags: geocaching
Subscribe

  • Update

    Wow, what with one thing and another, I haven’t posted on here in a month! Time to give a short update on what’s been happening.…

  • Final RPG-a-Day: Thank

    The last prompt for RPG-a-Day this year is ‘Thank’. If you have read every entry of this year’s RPG-a-Day, then I certainly…

  • Next-to-last RPG-a-Day: Mention

    Today’s prompt is ‘Mention’. I guess this is where I mention people I look up to, or websites I frequent? Ok, here’s…

  • Post a new comment

    Error

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

  • 6 comments