How many GPS satellites are in the sky at any one time?

May 8, 2010 by admin · 2 Comments
Filed under: Astronomy & Space 
gps
Uncle Pennybags asked:


By this I mean from horizon to horizon. If you had a GPS unit and you were in the middle of a flat plain, how many satellites could it possibly pick up?

How are GPS signals from satellites amplified?

April 11, 2010 by admin · 2 Comments
Filed under: Physics 
gps
shae.1994 asked:


How are GPS signals from satellites amplified?
What is the process from a physics perspective?
Is it amplified using a complex form of a concave mirror??

How can you utilize the GPS system for personal use?

March 17, 2010 by admin · 2 Comments
Filed under: Other - Electronics 
gps
Brokenman asked:


How can you utilize the GPS system for personal use? For example, if I wanted to build my own GPS device, how can I utilize the GPS software/satellites?

What is the approximate altitude of a GPS satellite?

February 28, 2010 by admin · 3 Comments
Filed under: Astronomy & Space 
gps
=D asked:


Also how many planes do GPS Satellites form?
What is a plane?

For navigation, what is the difference between a GPS device and a cell phone?

December 31, 2009 by admin · 1 Comment
Filed under: Cell Phones & Plans 
gps
Iraq Out asked:


Does a cell phone navigate off the cell network and the gps device uses satellites…and therefore can be used where there is no cell phone connection?

How many meters do the GPS satellites wander around?

May 15, 2009 by admin · 2 Comments
Filed under: Engineering 
gps
Barney asked:


The satellites wander around and are stabilized with short “burns” of rocket fuel. How many meters do they wander before the ground station orders them to move? I would also strongly suspect (correct me if I am wrong) that the absolute position can be corrected in software to some extent. but with accuracies on the ground of 5 meters or so, I would think the satellites would have to be pretty stable. Yet on the other hand it’s hard to imagine those things being nailed to the sky.

How does my GPS connect to satellites?

February 26, 2009 by admin · 2 Comments
Filed under: Other - Electronics 
gps
Fujibcxbcxvcx F asked:


Hi everyone,
I have a trouble receiving a satellite connection to my GPS.
I installed the software into my new GPS device(Garmin Streetpilot i3) but my location is a factory installed location.It has not changed a bit.
What have I done worng? Or, what would you suggest me to do to fix this problem?
Appreciate your help.

How does my GPS connect to satellites?

February 18, 2009 by admin · 1 Comment
Filed under: Other - Electronics 
gps
Fujibcxbcxvcx F asked:


Hi everyone,
I have a trouble receiving a satellite connection to my satellite.
I installed the software into my new GPS device(Garmin Streetpilot i3) but my location is a factory installed location.It has not changed a bit.
What have I done worng? Or, what would you suggest me to do to fix this problem?
Appreciate your help.

How do GPS satellites stay in perfect position with out drifting out of position in time?

February 2, 2009 by admin · 9 Comments
Filed under: Astronomy & Space 
gps
Peter D asked:


Seems that no matter how perfectly positioned these GPS satellites are they would drift out of position and that would throw off the computations of our GPS units in cars etc.

Why are GPS satellites in medium orbit rather than geostationary?

February 1, 2009 by admin · 4 Comments
Filed under: Astronomy & Space 
gps
zuestra99 asked:


Is there an advantage, other than probably cost, to having the GPS satellites at 12,000 miles rather than in geostationary orbit? Would it work either way?

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