GPSU is a freeware utility that runs on a laptop/PC connected to a GPS.

it allows you to calibrate a map image you scanned yourself (chart, satellite photo etc), and then while the GPS is getting a fix, it will point where you are on your image.

first you need to download it from http://www.gpsu.co.uk/

then download the hi-res photo of mudeford I provide below, by clicking it too

When GPSU asks you to set calibration points, here they both are:

STRIDES BRIDGE

N50,43.592 / W1,45.194 you need to zoom in on the picture till you can place the point exactly on the end of the bridge as shown, then enter the position above

The second was taken from Mudeford Quay at the SW end as shown below. position here is N50,43.413 / W1,44.540

Provided your calibration points are in the same place on the image, and positions the same, you should also find, in practice the plotting onboard is invaluable and great fun.

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