Still Seeking Cell Signal Strength

I pursue an ongoing effort to get cell phone reception on my isolated patch of Morgan County, West Virginia.  My latest effort is to erect a high gain Yagi antenna tuned to the 800 MHz band on a 20 foot pole up the hill above the build site.  Results have been pretty good.  I have an old-fashioned cell phone that still has a socket for an external antenna.  I plug it in and point it in the right direction and can get a call out 90 percent of the time.  My next plan is to put the antenna on a higher pole and use an electric antenna rotor.  In the meantime this saves me from having to drive a half mile up the hill to get a call out.

The 800 MHz Yagi on a PVC pole. 

I am sure that I could get even better results with a taller pole.