I know I have a bit of a vested interest in trackers.. but even if you don't use the trackers I offer, please don't use "Delorme" they were used on the recent International Multi sport event in Costa Rica (we provided the web portal). They were awful and about the same price as Yellowbrick to hire - Yellowbrick is lot more reliable but way over the top for a fell race.. some people on this forum would have a seizure if they saw the weekend hire price of iridium tracking.

James