That does sound a good bit of kit Bob. i think it would be good if a very small unit was available to attach to the dogs collar. Just for curiosity to see how far the dog is going while out walking or a nights work.
The unit is a about the size of a 10 pack of cigarettes, only a little fatter. If you knew some one handy or even strongstuff himself could probably get one on his 50mm collars. Infact, I think youd get away with taping it on if it was only for curiosities sake one evening. Nice tight electrical tape binding and youd be away.
Yea that should hold it Bob I think I will get 1 soon