"Ali Ghorashi" wrote in message =
...
Hello All,
What does the following NOTAM mean:
=20
GPS 02/001 GPS PRN 26 OTS WEF 0502082100-0502090900
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I know it says "GPS Pseudo Random Noise 26 Out of Service" but what =
are its
implications? Does it mean that RAIM is not available during the =
outage?
=20
-Ali

Only the one satellite vehicle (number 26) will be out of service for 12 =
hours.
Your GPS receiver still will compute RAIM over the remaining
constellation of satellites visible to you during the affected hours.

If I were not so lazy, I could look up the vehicle's orbit, and learn
whether SVN26 (PRN26) will even be on your side of the world
during its listed hours of outage.
You'll probably see no adverse effects at all.