Coverage Mapper works very well for me.
Remember, you can not turn off your screen.
Coverage mapper will dim your screen, so don't worry too much about battery usage.
I read about the screen being on/dimmed ,so I knew my battery would suffer.I've done some more driving and there is the same signal loss reflected in the newer data .Checked the cellsite info (also in the other thread) and the loss of signal correlates to celltower placement ,so it's not me.
Also, make sure you're uploading your data.
I'm definitely uploading the Data ,most of the data for
Qualicum south to Nanaimo is mine

P.S. I also went to the Coverage Mapper forum to see how long it took the uploaded data to show
