Discuss (10) -
Posted at 10:04 AM on Sunday 01/10/10 by
Ben
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Buy.com has the Garmin Nuvi 755T GPS Receiver for $195 with free shipping. Features free lifetime Traffic support, maps of North America, a 480x272 resolution screen, Easy-Touch programming, and SD Card support. [Compare]
  • 1
    Peakmaster - Posted 12:06 pm PST 01/10/10 (244 Posts)  Report Spam

    OK, I sm somewhat of an expert in satellite data so here:

    Each GPS manufacturer must launch or pay to have launched their own GPS satellite(s). The GPS unit in your car can only "speak" to it's own company's satellite. The satellites in turn "speak back" to the individual GPS units. That is why they were so expensive several years ago.

    The bigger companies have more units communicating with the distinct possibility of overload or crash. This has happened many times recently with Garming and TomTom since they are the most popular. If too many people are using their GPS at the same time, the satellites overload and can actually crash into another planet, star, meteor or asteroid...or worsed case back down to Earth.

    Also, the beams that are transmitted as the GPS units "speak" to the satellites can cause beam deflection errors which usually occur on bridges or the entrances to tunnels. Additionally, GPS radar microwave beams can be warped and/or "wrapped" from satellites that are about to transpond and overload because of too many people beaming to them at once.

    Also, the satellites can lock their beams to the wrong GPS units and it is possible to reeive someone elses meant transmission which force people to get totally lost. For example, you live in San Francisco but you receive the satellite beam from the TomTom satellite unit of a person living in Prague. This is why I only buy offbrand GPS units like Pharos

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  • 2
    NQxxx - Posted 12:56 pm PST 01/10/10 (65 Posts)  Report Spam

    I'm an expert in Peakmaster's mom.

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  • 3
    maximillian - Posted 1:05 pm PST 01/10/10 (1172 Posts)  Report Spam

    #1, you are almost corect. You didn't mention tropospheric effects, signal degradation, or subspace interference. These are also crucial aspects of GPS system communication. The algorithms used by the satellites have to take into account and compensate for these anomalies, otherwise all the dominoes come down like a house of cards, checkmate!

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  • 4
    biggin - Posted 1:08 pm PST 01/10/10 (492 Posts)  Report Spam

    wat

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  • 5
    gassyjoe - Posted 2:02 pm PST 01/10/10 (2518 Posts)  Report Spam

    OMG #1 fix your typos before you repost this dribble for the 27th time.

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  • 6
    btc909 - Posted 3:11 pm PST 01/10/10 (2661 Posts)  Report Spam

    Nice use of copy & paste Peakmaster.

    Those dam out of control warp speed GPS satellites will just get overloaded & zoom off & fly into another planet!

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  • 7
    scottcudmore - Posted 6:00 pm PST 01/10/10 (104 Posts)  Report Spam

    #1 is wrong and can't spell, and who cares if he's an expert.

    Garmin and other companies don't "own" satellites. GPS units listen to the signals and use lots of mathematical calculations to determine your location. Basically, the triangulate between multiple signals and calculate the location. The maps on the unit along with the electronics is what Garmin and other companies bring to the table. In fact Garmin and others, don't even make the maps, they just piece it all together and make it easy to use.

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  • 8
    buttmunch - Posted 7:10 pm PST 01/10/10 (679 Posts)  Report Spam

    Ok, #1, number 7 has foolishly bit on your trollage as you wished.

    Now would you please retire the dumb repetitive joke and get your jammies on and get to bed - it's back to kindergarten class tomorrow!!

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  • 9
    tarnis - Posted 6:10 am PST 01/11/10 (424 Posts)  Report Spam

    Actually the gov't launched them thar satellites and openned them up for private entities to use...meaning they now have something better we don't know about.

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  • 10
    Corporate_Bate - Posted 1:56 pm PST 01/11/10 (333 Posts)  Report Spam

    #1 You are a Moron!!

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