I am trying to figure out a way to get GPS data from a remote source to a Raspberry Pi. The remote source would be a helmet mounted GPS receiver so it would need to be small and preferably inexpensive. A $30 USB GPS dongle would be perfect. The question is how to get the data to the Raspberry Pi board. Line of sight will not always be an option so RF would be best I'm thinking.
I just don't know what to look for. Can someone point me in the direction of some kind of small transmitter/receiver I can use to get the data from the GPS device to the Raspberry Pi? Or if there is some GPS module that has a transmitter built in that would be great too. The typical range of transmission will be between 10 and 500 feet so I suspect that Bluetooth will be out though I don't really know much about the max range of Bluetooth. I really just don't know where to start looking so even some keywords or search terms that could point me in the right direction would be helpful.