I've do a test outside. My accuracy is 9 - 13 meters. I've set Predicted EPH and cold start and also a single test on that menu. reset setellites and then wiat for new satellites. Turn off and then turn on but i've not see any differents. I've clear NON VOL and then try again with set Predicted EPH and cold start and turn off and then turn on but any differents. Outside always 9 - 13 meters.