While Nathan was relieved that both his radio had worked and this new ship was in fact help that meant whatever was wrong with his radio was intermittent, which had a bad habit of turning up at bad times. 

"We have an injured Expedition member in need of surgery and I'm in the process of bringing him back to our base camp. Do you know if you are nearby? Any land marks?"

Nathan had walked around to the gentle incline and was helping Javier to his feet with the walking stick as he radioed. Between the splint and walking stick and some help Javier could probably be transported back to camp safely, if they went slow.