GPS Watch

January 22nd, 2008

Today I got a new toy!!!! A brand new GPS-enabled heart-rate-monitor super watch, the Garmin Forerunner 305. It’s the ideal gadget for serious runners and triathletes. Not that I’m a serious runner, but I do love to geek out. The GPS is pretty robust, allowing the device to record your route as you run (GPS accuracy within 10 meters, typical). The heart rate monitor keeps track of your pulse (of course), so you can see how hard you’re working. And its got all sorts of timers and alerts and other stuff.

The main reason I got it is because I *do* run and wanted to track my routes. After some looking, I was sold by this one picture – it shows a map of SF with the route highlighted, and some stats on the left. Exactly what I was looking for. Thanks for the pic, Bijan Sabet.



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  1. Lori
    January 23rd, 2008 at 10:34 | #1

    That is cool, Chad. I bet it inspires you to run more often and more different routes just to see it mapped. One thing on Bijan’s map that is weird, though, is that it seems like that route would get nowhere near an elevation gain of 1,263′. South of Market and the Embarcadero are quite flat and to go up and down 1,200′ in 3.67 miles is a lot more dramatic than that.

  2. chad
    January 23rd, 2008 at 10:37 | #2

    Lori – good point. I’m sure the watch makes NO mistakes. Maybe he climbed to the top of a building …

  3. Lori
    January 23rd, 2008 at 13:01 | #3

    In 34 minutes of running he went 3.67 miles and climbed to the top of a building 200′ taller than the Empire State Building? Hm. Perhaps while he was running he just tossed it up in the air and caught it a bunch of times. You think?

  4. Casey the neighborhood Geodesist
    January 23rd, 2008 at 14:09 | #4

    The vertical component of GPS has always been the weak spot. Cheaper GPS units often have huge errors in the vertical. If you want really good elevation data out of GPS try something like this….

    http://www.trimble.com/trimbler8gnss.shtml

    It will run you well over $10K, and it won’t be fun to run with, but if you use it in conjunction with OPUS:

    http://geodesy.noaa.gov/OPUS/

    you can get centimeter level vertical data no problem.

  1. January 28th, 2008 at 17:15 | #1
  2. February 19th, 2008 at 19:51 | #2