GPS MegaTape makes it possible to measure a distance. It has two modes: a straight tape measure, and, an odometer (tripmeter). In the odometer mode you can record a path you walked or drove. That's a rather nice feature.
Do as follows. When you've reached the destination, press the envelope-button on the bottom left and mail to yourself. Then open the mail and choose to open the attached file with Google Earth to see the path you traversed.
Of course you can open the mail with Google Earth on your PC too. While at the PC you might want to save the attachment to your harddisk and give it some good name for later reference.
Here's a walk I recorded the other day (screen shot from my iPhone). The walk is the white marking on the picture:
I usually keep my iPhone in the breast pocket of my shirt or some pocket in my jacket or overcoat. In the rather cold climate of southern Sweden taking a walk at this time of year means you need a pullover and an overcoat over the shirt. That seems to be no problem at all for GPS reception. The proof is in the picture: if reception were a problem, the white line would not be so smooth.
When you use the tape measure, it's important to wait for good GPS reception. Here's how to get a precise measurement:
- Wait for the indicator dot in the top right corner to turn green. It can take a few seconds.
- When the indicator has turned green, press the Reset button to zero the measured distance.
- Start measuring.