Continuous GPS transmitter
I am doing some research in some isolated areas of some country. I would like to know if there is such a gps device that I can wear "say around my neck" on a chain that could transmit Continuously for a week (min) or a month (max). Before it needs recharging ? I will already have the "SPOT" activated and be using solar for charging my laptop and some test equipment that I will bring along. I will either be using local help for carting supplies or mules. There will be one other person with me at all times. Any ideas would be great. Thankx in advance !