Experiences with speedometers? Radar vs GPS

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Cloxxki
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Experiences with speedometers? Radar vs GPS

Postby Cloxxki » Sat Dec 22, 2007 6:11 am

Came across this :

http://www.tech4o.com/p-25-running-speedometer.aspx
Measures with radar technology.

$99. Seems quite complete for that price.

Although the display doesn't look ski-friendly to me (unless it turns), it could be a fun tool.
Does it work only when holding "still", like when looking at the display, quitting the poling? Is it accuarate around a track you've measured on the bike?

Thanks,

J

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Greggb
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Postby Greggb » Sat Dec 22, 2007 9:56 am

I have aiming to get one of these when I get back on my feet https://buy.garmin.com/shop/shop.do?pID ... erunner305

Board member snowhunter uses one and really likes it.
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Cloxxki
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Postby Cloxxki » Sat Dec 22, 2007 10:10 am

Greggb wrote:I have aiming to get one of these when I get back on my feet https://buy.garmin.com/shop/shop.do?pID ... erunner305

Board member snowhunter uses one and really likes it.

But will it work in the Torsby skitunnel? :-)

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Postby trailville » Fri Jan 04, 2008 4:37 pm

I use a Garmin Foretrex GPS sometimes when skiing. It's an inexpensive wrist GPS. http://www.amazon.com/Garmin-Foretrex-1 ... B000255I8W

The "max speed" feature is a little glitchy, especially in the woods on winding or zig-zagging trails. The first time I took it hiking, it said my max speed was 13mph, and I didn't do any running. I think because it accepts a max speed as a momentary speed, it gets glitchy when it loses the satelite and then regains it or something. So I don't trust the max speed feature on a short-steep downhill or a tight winding one. But on a longer fairly straight downhill on a wide trail, it works pretty well (just make sure you reset it just before the hill). You can get a more accurate reading if you actually watch the screen of the GPS as it shows your speed while moving. This seems to work better than the max speed feature, but it's kind of dangerous having to look at your wrist while you moving at a fast clip. I've tested the speed measurement with mine on my bicycle with an accurate cyclocomputer and it was right on in open areas.

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Postby kaNUK » Fri Jan 04, 2008 5:03 pm

I use my old Garmin E-trex on occasion. It's the technological equivalent of a sharpened stick, and does not even include a wrist strap. That's ok though, as I don't even like wearing a wrist watch. It lives in a mesh pocket of my bottle belt. I don't consult it until I get home, then I download the waypoints into an Excel spreadsheet. Waypoints are stored every 15 m or so (depending on user setting) and include position, elevation and time. This allows me to log distance, speed and elevation. I can also create an overlay for the topo map program with this.

Archaic, but it works :D

kaNUK


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