quote:PR1aW
I ran a couple of winter events and used the PR1aW in the high power output mode. It died every time just when having the prize giving ceremony (5-6 hours after I set-up the system) so your calculation seems right to me. Have to admit that weather conditions at all events have been rather mild at -5°C (23F). As I have line of sight between S and F, I will decrease to 50 for the next events.