Geocaching profile

There are a number of utilities around aimed at helping the Geocaching community.  Here's one that I came across recently that automatically produces a prodfile signature.  If you click on the image below, you will be able to create one of your own.

Geocaching in the FT

Here's a nice article from the FT on Geocaching.  It seems like a well balanced introduction to the topic.  It is from September this year, but I have only just come across it. :0(

http://www.ft.com/cms/s/2/f16b1dce-a18f-11de-a88d-00144feabdc0.html

Here's another article from a little further afield...http://www.rapidgrowthmedia.com/features/110509geocaching.aspx

Garmin Oregon 550 GPS

First things first, this GPS receiver is really targetted at the outdoor enthusiast and is not really intended for in car use. If you are looking for an in car navigation device, then I suggest you look elsewhere. If you are a Garmin fan, the NUVI series are pretty good. These in car devices are both cheaper and more appropriate than this device. If you are looking for a device for walking, geocaching, cycling etc, then read on.

I have the 550 model - the one without the maps. I find the software based maps of limited use (prefering to use the real paper based ones in the mountains) and find the free maps from the OpenStreetMap initiative more than adequate for my needs. They have contours and paths as well as routable roads and Points of Interest (POIs). The whole of the UK comes in at around 250MB, so it will easily fit on the SD card in the device. A quick internet search will take you to the appropriate download page. You will find the page here: http://sites.google.com/site/talkytoasteruk/ukmaps

The device boots up quickly and seems pretty accurate. I bought this device specifically for geocaching (more on this later) and currently use a GPSMAP60csx. The Oregon seems as accurate as the 60csx and works well under tree cover. The device is easy to set up and configure - everyone seems to set theirs up in a slightly different way.

For geocaching, it is a really great device. You can run a pocket query on geocaching.com (you need to be a premium member to do this) and can then load the subsequent GPX file onto the device (this involves copying it into a directory on the device). The GPX file contains all the information you need for each cache - description, location, previous logs and even the hint. Using this approach, I have loaded up all of the caches within a 20 mile radius of home. It means no more printed out pages and enbles me to look for caches on an adhoc basis. It is even possible to log your attempts on the device and then upload the file to geocaching.com. These attempts can even contain field notes. This comes into it's own when you are logging a number of caches per day or logging caches over a number of days before you can log them on the internet.

So, now the not so good features. More niggles than anything, but here there are! The user interface is a bit cumbersome. The use of a touchscreen has led to a very convulted UI. For example, when geocaching I often flip between the map page, the compass page and the cache description page. Each time you move between pages, you need to go back upto the main menu. On the 60csx, you can just flip between the screens. Another thing to bear in mind for geocachers is that if you put the answers to clues into your field notes on the device, these cannot be read on the device. You have to load them up to the internet to be able to access them. So if you are looking for a bonus cache and want to do the calculation in the field, then take a paper and pen with you.

Battery life on AA alkalines is pretty poor, but much more respectable on the rechargable NiMHs supplied with the unit. You can use battery saving mode to extend the life of the batteries, but this just turns the screen off after every few seconds and gets annoying. I can spare alkaline AAs as backups for the rechargables.

The unit will run off power supplied to it via the mini USB cable, but it will not charge the batteries via this cable. Shame.

The touchscreen can be difficult to see in bright sunlight and can be scratched. I already have a scratch on my unit, but then I tend to leave it loose in a rucsac pocket.

The 550 does have a 3.2MB pixel camera, but it is pretty limited in terms of camera controls.  My advice is don't leave your camera at home.  However, if you do, you could use the 550 at a push.  The good news is that it does store location data with each of the picture that you take.  Thus, when you browse through the images in the album, you can navigate back to that location.  I haven't had any reason to use this feature, but I can imagine that there are other users out there who might have a need for this.

All in all a great device. I am hoping that Garmin will improve the UI and this will be available through software updates.

Free maps for GPS recievers

If you have a GPS reciever (not one that you use in the car, but a handheld device for trailwalking), you will find that it comes into it's own with an installed map.  Some units come with a mapbase installed, but often it is very basic (as is the case with the Garmin GPSMAP60csx).  Some have a map preinstalled, but then you have paid extra for it. With most of the devices, you can purchase and install additional maps separately.  They are available through Garmin directly or other third parties.  However, they are expensive and (in my experience) of limited use on a small display. However, there is an alternative.

The OpenStreetMap project is a wiki map project that is a free editable map of the whole world. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth. You can download part or all of the maps for the UK for free - both with contours and providing routable maps.  The UK routable map with contours weighs in at around 250MB, but with micro SD card slots in many recievers this is not a problem.  A 1GB micro SD card will cost you less than £10.

You can download the maps from here http://sites.google.com/site/talkytoasteruk/ukmaps which also contains an FAQ and full instructions.

The instructions are straight forward and I installed it within 20 minutes on my 60csx.  The maps from what I can tell are as good as any other on the market (and these are free) and installing the maps opens up a whole new set of features on the device.  If you don't have any maps on your Garmin, I strongly suggest investigating these.  You won't be disappointed.

Geochecker

Here's another useful geocaching resource.  If you set a puzzle and want to allow finders to check their calculations, then this site will allow you to input the cache name and GC code.  It then automatically allows finders to check their location.  It generates an easier URL which you can then enter on your cache page.

http://www.geochecker.com/

It's not about the numbers. Or is it?

Here's a useful website that will take the list of your found geocaches and provide a graphical representation of the data.  You will need to be a premium member on geocaching.com to be able to run the pocket query to produce the zip file, but other than that it is just a case of uploading it to the website. 

It does seem to get overloaded on occasion and throw a server error, but I guess that is the price we pay for using a popular (and free) website. You will find it here: http://www.itsnotaboutthenumbers.com/

Once you have uploaded your zip file, you can generate various pages.  His my current summary page:

Geocaching resources

Here's a couple of useful resources for geocaching:

Logbook templates
This page contains a number of logbook templates for a number of different types of containers: 35mm cannisters, bison tubes, magnetic keysafes etc.  Both in black and white, and colour.

Distance between two co-ordinates (long/lat)
If you are into setting up caches, there is a minimum distance between caches of 161 meters. So when you set up a potential cache, you need to check the distance from any existing caches.  Normally, this is not a problem, except in built up urban areas.  This page allows you to enter two co-ordinates and automatically calculates the distance between them.  Handy!