Archive for July, 2008

Jul 19 2008

Gear Review: SPOT Satellite Messenger Personal Tracker Review

Published by admin under Backpacking, Gear Reviews, Hiking, Web

SPOT ReviewI’m something of a GPS geek. When I hike/backpack I carry 3 different GPSes on me. I’ve got my Garmin Colorado, my TrackStick, and my Garmin Forerunner. I’ve always been on the lookout for a device that would let me do some kind of real-time communication with my GPS data and with services like Brightkite and Fire Eagle out there, I became even more desperate. So when I discovered the SPOT, I was overjoyed. After playing with the device for a month, I’m still excited, but it’s not quite the perfect solution.

The Bad
If you get a SPOT, you should be warned that this is not the kind of device that you can just take out and start playing with. For one, the signal isn’t good enough, and two - my biggest complaint - is that the indicator lights are terrible. It takes some getting used to in order to figure out exactly what the SPOT is doing (and what it isn’t). Plus, the SPOT doesn’t really seem to be meant for any kind of “instant action”. You can’t click a button and expect an email or text message to come right away, so it’s difficult to pull it out of the box and start testing it. You really have to carry it around for a while in order to get a sense of whether or not it’s working.

The other big bummer is that the signal just isn’t that good. I was generally okay with the GPS signal while hiking through trees and on cloudy days, but the actual data signal didn’t seem to be great which means you may be getting data, but you won’t always be sending it. Supposedly it uses the Globalstar Simplex network which I’ve heard people having general issues with. The other problem is that because it’s a simplex network, you won’t get any indication that your message has arrived. The receiver only does one-way transmission so it can’t tell you if the message was actually received.

Finally, I hate the clip. It doesn’t attach well to my pack.

The Good
The SPOT is tough. I dropped it off my 2nd story balcony onto cement and the sucker kept on ticking (my heart did skip a beat however because I’d only gotten it that day). I also like the user interface on the SPOT mapping application. It uses Ajax and Google Maps and does a pretty good job of plotting things. One thing I don’t like is that it isn’t always as granular as I would like so sometimes the dots are squished together if I’m not moving fast enough.

It’s also fun to share GPS stuff. Aside from sensitivity issues, the SPOT generally picks up most of my tracks and gets messages sent out most of the time. It’s fun to be able to checkin to places remotely and give my parents a map of exactly where I am. The help and 911 features are also great. As an emergency device, SPOT is perfect. It gets most of the messages out, and would give anyone trying to find you a huge advantage - so in my opinion that in itself is worth the price of admission.

The other great thing about the SPOT is the battery life. It only takes Lithium batteries, but it lasts forever. Something like 14 days when you’re in the track mode which pings the satellites every 10 minutes and 7 days in 911 mode which does it every 2-3 minutes I think. So you’ll be in good shape if you bring a couple of extra Lithium batteries.

Conclusion
It’s a great idea with far from perfect execution but they’ve started off on the right foot. As a social media device, SPOT falls far short, but as an emergency device, it’s excellent, and that’ really what it was made for. If you do a lot of backpacking/hiking, I really encourage you to get one. If you’re going to be in urban areas most of the time, the iPhone 3G will do you just fine when it comes to GPS messaging.

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Jul 04 2008

Geonames Reverse Geocoding Web Services

Published by admin under Web

I’ve been working on a ColdFusion application that will let me send my SPOT checkins to BrightKite. I’ve got the longitude and latitude down but one cool thing about BrightKite is that in addition to sending a checkin from a random lat/lon with “@lat,lon” you can give that place a name by appending a string to the end of it like “@lat,lon My House”

Well thanks to Geonames I can make my random lat/lon SPOT checkins a lot more interesting because they have a huge set of reverse geocoding web services. Reverse geocoding lets you take a latitude and longitude coordinate and then give figure out what it’s close to. With Geonames you can get the closest address, closest place name, closest neighborhood, or basically anything you want. So now I’m building in reverse geocode lookup into my application so I can check in with latitude and longitude coordinates but then give that a meaningful label.

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