I think it was the nutritionfacts.org channel had a
video on cellphone radiation, and if I recall they cited a study that there is a 30% increased incidence of brain tumors on the side of the brain that is the persons primary hand, with the correlation that people usually hold the phone to their head with their primary hand so perhaps it is related.
From some work-related classes: a cell phone will increase power output when it has a weak connection to a cell tower so you want to avoid any physical materials which would block the internal antenna from that connection. Otherwise it increases the power output to attempt a better connection and just uses up the battery faster and in some cases can even cause the phone damage due to heat.
I try to avoid using the WiFi or bluetooth to save on battery use and from cooking my hip while it's in my pocket. That script looks great! I've never messed with that before and will be using an Android model phone so I'll have to see if there's an equivalent script. I would check to see if powering on the antenna causes an initially higher signal use as it connects to a tower, and what the check in time is after that to be sure that window is long
enough to download data.