wonduhboy Posted July 28, 2006 Posted July 28, 2006 Got my 725 this morning (thanks Chris Jnr at CWC!!!)How do I go about setting the altitude?Is their a website I can go to, to get some altitude readings of different locations?
Buff Posted July 28, 2006 Posted July 28, 2006 Where abouts in Jbg Gauteng are you? I have a GIS system at work that has contour data available for most of the country.
Jason Posted July 28, 2006 Posted July 28, 2006 Buff... Whats Centurion/Midrand/Pretoria? smileys/smiley4.gif
Thug Posted July 28, 2006 Posted July 28, 2006 Got my 725 this morning (thanks Chris Jnr at CWC!!!)How do I go about setting the altitude?Is their a website I can go to' date=' to get some altitude readings of different locations?[/quote'] Can't help on what the altitude is, but to set the altitude on the watch... Options --> Start --> Function Set --> Altitude On --> OK --> and then key in the altitude figure --> OK ---- DONE !
wonduhboy Posted July 28, 2006 Author Posted July 28, 2006 Where abouts in Jbg Gauteng are you? I have a GIS system at work that has contour data available for most of the country.Thanks Buff - do what level can it give data?Can it give for Gold reef city, Parkhurst, Sunninghill?I know how to set it, just want to make sure its accurate.Thanks
Thug Posted July 28, 2006 Posted July 28, 2006 I know how to set it' date=' just want to make sure its accurate.[/quote'] The only way to set it will be at a Trig Beacon or with the help of a GPS, however the Polar uses barometric pressure to detemine the altitude, which 75% of the time will always be inaccurate given the hourly changes in temperature & pressure.
scotty Posted July 28, 2006 Posted July 28, 2006 Buff... Whats Centurion/Midrand/Pretoria? [/quote'] Names of cities smileys/smiley4.gif
wonduhboy Posted July 28, 2006 Author Posted July 28, 2006 I know the watch isn't going to be 100% accurate, just want to make sure it's almost thereWhat about using google earth?
Buff Posted July 28, 2006 Posted July 28, 2006 Eish, I'm not from your neck of the woods so it makes it hard to find specific areas. The contour intervals are 20m so it's very easy to get this wrong without knowing your co-ordinates but you can work with these:Kempton Park = 1600mSandton = 1540mFourways = 1460m
wonduhboy Posted July 28, 2006 Author Posted July 28, 2006 Thanks BuffIf I gave you co-ordinates from google earth, could you check them against what you've got?Try 26 14'13" S 28 00'15" E ?
Buff Posted July 28, 2006 Posted July 28, 2006 Jason - At the main set of robots at Grand Central the height is 1600m.At the entrance to Kyalami it's 1440m.
Buff Posted July 28, 2006 Posted July 28, 2006 Wondu - is that near Crown mines? If so, the heigh is 1710m.
scotty Posted July 28, 2006 Posted July 28, 2006 There is a site the altitude for places in feet, but this can be converetd to meters http://www.fallingrain.com/world/SF/
wonduhboy Posted July 28, 2006 Author Posted July 28, 2006 Jason - At the main set of robots at Grand Central the height is 1600m.At the entrance to Kyalami it's 1440m. Comparing to Google Earth - Grand central robots are at 1597m and Kyalami (I assume you mean the race track) is 1463m
Buff Posted July 28, 2006 Posted July 28, 2006 That's not bad - like I say, 20m either way makes the difference.
wonduhboy Posted July 28, 2006 Author Posted July 28, 2006 Wondu - is that near Crown mines? If so' date=' the heigh is 1710m.[/quote'] Yip, its pretty close to crown mines, and G.E puts it at 1711m - pretty good, I'd say.
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